Journal articles on the topic 'Adhesive dentistry'
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Titova, Ol'ga, Tatyana Melenberg, Lyudmila Linnik, Takhmina Boeva, Andrey Burov, Sergey Daironas, and Ella Daironas. "ADHESIVE SYSTEMS IN THE PRACTICE OF A DENTIST DOCTOR." Actual problems in dentistry 16, no. 1 (May 14, 2020): 178–81. http://dx.doi.org/10.18481/2077-7566-20-16-1-178-181.
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Subject. Dental restoration includes work on tissue restoration by filling, using inlays, veneers, and artificial crowns.
Adhesive systems are used in therapeutic dentistry for working with composites, compomers and some glass-ionomer cements, for adhesive fixation of all types of indirect structures, repairing chips of composite and ceramic linings; in pediatric dentistry for sealing fissures, for fixing orthodontic structures. Currently, there are eight generations of adhesives on the market of dental materials. The first two generations of adhesives required only enamel etching and transformed the dentin layer, while the third already provided for conditioning of the dentin, and the fourth and fifth ― and all-out etching. The sixth, seventh and eighth generations of adhesives are self-etching analogues. This article presents the results of a survey of practical health care dentists in choosing an adhesive system.
The goal is to evaluate the preferences of the choice of adhesive systems by dentists.
Methodology. 30 dental therapists and orthopedic dentists took part in the survey.
Results. The results of the questionnaire analysis showed that the majority of dentists prefer to use fifth-generation adhesives in their practice (46 %), the sixth generation of adhesive systems is in second place in popularity (31 %), followed by the "gold standard" ― the fourth generation (13 %), and the seventh (10 %) in last place.
Conclusions. The fifth-generation adhesive systems surpassed the other generations in efficiency and reliability. This is why the majority of dentists surveyed chose this generation.
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Hayashi, Marc. "Adhesive Dentistry." Dental Clinics of North America 64, no. 4 (October 2020): 633–43. http://dx.doi.org/10.1016/j.cden.2020.05.001.
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Vuksanović, Marija, Nataša Tomić, Ivana Mladenović, Tamara Perić, Bojan Gligorijević, and Radmila Jančić-Heinemann. "Enhanced adhesion of acrylic adhesives with dental tissue with the addition of aluminum oxide based particles." Tehnika 75, no. 4 (2020): 429–33. http://dx.doi.org/10.5937/tehnika2004429v.
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Composite materials based on acrylate UV-cured polymers (Bis-GMA/TEGDMA) as a matrix and reinforcements that can be selected in order to adjust the properties of the obtained composite are used in the field of dental technology. The role of reinforcement is to adjust the mechanical properties, but also to control the shrinkage during curing. As reinforcement, alumina particles doped with iron oxide (Al2O3 Fe) synthesized using the sol-gel technique were selected. In order to simulate the process of adhesive application in real conditions, in vitro testing technique and adhesion properties of synthesized adhesive were used, where tooth tissue was used as a substrate. Comparison with standard adhesives used in dentistry was used to compare adhesion. The quality of the adhesive joint was evaluated using the microhardness testing method using different loads where it is estimated how the adhesive makes a connection with the substrate. It was shown that the synthesized adhesive showed significantly enhanced adhesion compared to the standard adhesive used in dentistry (836%).
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Ferreira, Joao Cardoso, Patricia Teixeira Pires, Alvaro Ferreira Azevedo, Sofia Arantes Oliveira, Paulo Ribeiro Melo, and Mario Jorge Silva. "Influence of Solvents and Composition of Etch-and-Rinse and Self-Etch Adhesive Systems on the Nanoleakage within the Hybrid Layer." Journal of Contemporary Dental Practice 14, no. 4 (2013): 691–99. http://dx.doi.org/10.5005/jp-journals-10024-1386.
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ABSTRACT Aim The goal of this study was to evaluate nanoleakage within the hybrid layer yielded by etch-and-rinse and self-etch adhesive systems, with different solvents and compositions. Materials and methods Four adhesives were applied onto 20 human dentin disks: group A: Adper Scotchbond 1XT™ (3M ESPE), group B: One Coat Bond® (Coltène Whaledent), group C: AdheSE® (Ivoclar Vivadent) and group D: Xeno-V® (Dentsply). The samples were immersed in aqueous ammoniacal silver nitrate for 24 hour, prepared and observed under field-emission scanning electron microscopy with backscattered electrons. Microphotographs were scanned and data were processed. The mean value and standard deviation were calculated. KruskalWallis and Mann-Whitney tests were used (p < 0.05). Results All the adhesives showed nanoleakage within the hybrid layer: Adper Scotchbond 1XT™ (218.5 μm ± 52.6 μm), One Coat Bond® (139.6 μm ± 79.0 μm), AdheSE® (92.7 μm ± 64.8 μm) and Xeno-V® (251.0 μm ± 85.2 μm). AdheSE® yielded less nanoleakage than Adper Scotchbond-1XT™ (p = 0.003) and than Xeno-V® (p = 0.007). No other statistically significant differences were detected. Conclusion Two-step self-etch adhesive system (AdheSE®) might contribute for lower nanoleakage deposition and thus better performance in dentin adhesion. Clinical significance The two-step self-etch adhesive system showed the lowest nanoleakage deposition compared with the other adhesive systems evaluated, which seems to indicate a better behavior when a restoration is performed in dentin and possibly can lead to a durable adhesion along time. How to cite this article Ferreira JC, Pires PT, Azevedo AF, Oliveira SA, Melo PR, Silva MJ. Influence of Solvents and Composition of Etch-and-Rinse and Self-Etch Adhesive Systems on the Nanoleakage within the Hybrid Layer. J Contemp Dent Pract 2013;14(4):691-699.
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Nagura, Y., A. Tsujimoto, NG Fischer, AG Baruth, WW Barkmeier, T. Takamizawa, MA Latta, and M. Miyazaki. "Effect of Reduced Universal Adhesive Application Time on Enamel Bond Fatigue and Surface Morphology." Operative Dentistry 44, no. 1 (January 1, 2019): 42–53. http://dx.doi.org/10.2341/17-261-l.
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SUMMARY Objective: The purpose of this study was to evaluate the effect of reduced application times of universal adhesives on enamel bond fatigue and surface morphology of the treated enamel with constant force atomic force microscopy (AFM). Methods: Four universal adhesives—Adhese Universal (AU), Clearfil Universal Bond Quick (CU), G-Premio Bond (GP), and Scotchbond Universal Adhesive (SU)—were evaluated in a laboratory for their ability to adhesively bond resin composite to enamel. Shear bond strengths were initially determined using 15 specimens per test group for each adhesive. Shear fatigue strengths were then determined using 20 specimens per test group for each the adhesives. The fatigue specimens were loaded using a sine wave at a frequency of 20 Hz for 50,000 cycles or until failure occurred. AFM observations, surface Ra roughness measurements, and geometric surface area evaluations of enamel surface treated with the adhesive agents were also conducted. Results: A strong relationship was found between the initial shear bond strength and shear fatigue strength for enamel surface Ra roughness but not for geometric surface area. The initial shear bond strength and shear fatigue strength of CU and GP were not influenced by different application times, unlike those of AU and SU. While the surface area of enamel treated with the adhesive agents was not significantly influenced by different application times and type of adhesive, surface Ra roughness of the enamel in the AU and SU groups significantly increased with increasing application time, unlike CU and GP. Conclusions: The results of this study suggest that universal adhesives, used with reduced application times, have adequate Ra surface roughness to provide sufficient resistance to enamel bond fatigue at application times from <1 second to 20 seconds, while the geometric surface area of adhesive-treated enamel did not show any significant changes at these different application times.
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von Fraunhofer, J. Anthony. "Adhesion and Cohesion." International Journal of Dentistry 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/951324.
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The phenomena of adhesion and cohesion are reviewed and discussed with particular reference to dentistry. This review considers the forces involved in cohesion and adhesion together with the mechanisms of adhesion and the underlying molecular processes involved in bonding of dissimilar materials. The forces involved in surface tension, surface wetting, chemical adhesion, dispersive adhesion, diffusive adhesion, and mechanical adhesion are reviewed in detail and examples relevant to adhesive dentistry and bonding are given. Substrate surface chemistry and its influence on adhesion, together with the properties of adhesive materials, are evaluated. The underlying mechanisms involved in adhesion failure are covered. The relevance of the adhesion zone and its importance with regard to adhesive dentistry and bonding to enamel and dentin is discussed.
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Oliveira, Simone Gomes Dias de, Carlos Enrique Cuevas-Suárez, Carine Tais Welter Meereis, Josiane Kuhn Rutz, Ricardo Alfredo Carrillo-Cotto, Cesar Henrique Zanchi, Rafael Guerra Lund, and Evandro Piva. "A new method for evaluating the retentive efficacy of different denture adhesives." Brazilian Journal of Oral Sciences 17 (December 11, 2018): e181357. http://dx.doi.org/10.20396/bjos.v17i0.8654218.
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Aim: The aim of this study was to evaluate a new method for measuring the retention values of different denture adhesives. Methods: The adhesive strength values of three different commercial denture adhesives (Corega powder, Corega adhesive tape and Ultra Corega cream) were evaluated using three different moisturizing agents (distilled water, artificial saliva and natural saliva). The adhesive test was performed on a universal testing machine, after applying the adhesive products to acrylic resin specimens, under two different test conditions (wetting or dipping). Tensile bond strength values in MPa were obtained for each denture adhesive presentation and test condition. Viscosity of the denture adhesives mixed with the different moisturizing agents was determined using a rotary rheometer. Maximum viscosity values were analyzed using the one-way ANOVA test. Tensile bond strength data was analyzed using Kruskal-Wallis and the Tukey’s test. Pooled data of each denture adhesive presentations for all test conditions was also carried out. Correlation between viscosity and pooled tensile strength values was analyzed through linear regression analysis. A significance level of α=0.05 was set for all analyses. Results: Results showed that statistically higher adhesion strength was obtained with tape and cream adhesives when using natural saliva as moisturizing agents (p<0.05). The adhesive strength values obtained with the dipping method were similar to those obtained with the conventional wetting method. The denture retention strength was influenced by both the denture adhesive type and moisturizing agent used. Conclusion: The dipping method showed to be a reliable test capable to simulate the oral conditions and should be better explored in further studies.
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Zaharia, Cristian, Roxana Oancea, Alin Gabriel Gabor, and Meda-Lavinia Negruțiu. "New Trends in Dental Adhesion—A Systematic Review." Timisoara Medical Journal 2020, no. 1 (October 26, 2020): 1. http://dx.doi.org/10.35995/tmj20200107.
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Restorative dentistry is based on a continuous development of materials that make the best possible connection with dental tissues. Thus, dental adhesives have been researched with increasing interest. A successful adhesive system depends very much on its chemistry, as well as on the clinical procedures that must be appropriate for that type of dental adhesive. This review presents a retrospective of dental adhesives focusing on research into new types of adhesive systems that involves the use of nanoparticles. Dental adhesive systems are used in most clinical procedures related to restorative dentistry and can be classified into “etch-and-rinse” adhesives and “self-etch” adhesives. Recently, both types of adhesive systems have been modified, being loaded with different types of nanoparticles to try to improve them in terms of the thickness of the adhesive layer, but also to induce other special qualities. Therefore, in order to avoid compromising the restorative procedures by losing the restorations or by affecting the dental pulp due to cytotoxicity, several factors must be considered in choosing the adhesive system.
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Yoshida, Y., K. Yoshihara, N. Nagaoka, S. Hayakawa, Y. Torii, T. Ogawa, A. Osaka, and B. Van Meerbeek. "Self-assembled Nano-layering at the Adhesive Interface." Journal of Dental Research 91, no. 4 (February 1, 2012): 376–81. http://dx.doi.org/10.1177/0022034512437375.
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According to the ‘Adhesion–Decalcification’ concept, specific functional monomers within dental adhesives can ionically interact with hydroxyapatite (HAp). Such ionic bonding has been demonstrated for 10-methacryloyloxydecyl dihydrogen phosphate (MDP) to manifest in the form of self-assembled ‘nano-layering’. However, it remained to be explored if such nano-layering also occurs on tooth tissue when commercial MDP-containing adhesives (Clearfil SE Bond, Kuraray; Scotchbond Universal, 3M ESPE) were applied following common clinical application protocols. We therefore characterized adhesive-dentin interfaces chemically, using x-ray diffraction (XRD) and energy-dispersive x-ray spectroscopy (EDS), and ultrastructurally, using (scanning) transmission electron microscopy (TEM/STEM). Both adhesives revealed nano-layering at the adhesive interface, not only within the hybrid layer but also, particularly for Clearfil SE Bond (Kuraray), extending into the adhesive layer. Since such self-assembled nano-layering of two 10-MDP molecules, joined by stable MDP-Ca salt formation, must make the adhesive interface more resistant to biodegradation, it may well explain the documented favorable clinical longevity of bonds produced by 10-MDP-based adhesives.
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Sami, Omnia M., Essam A. Naguib, Rasha H. Afifi, and Shaymaa M. Nagi. "Effect of Different Adhesion Protocols on the Shear Bond Strength of Universal Adhesive Systems to Sound and Artificial Caries-Affected Dentin." European Journal of General Dentistry 10, no. 01 (January 2021): 030–36. http://dx.doi.org/10.1055/s-0041-1732776.
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Abstract Objective Bonding to different dentin substrates influences resin composite restoration outcomes. This study investigated the influence of different adhesion protocols on the shear bond strength of universal adhesive systems to sound and artificial caries-affected dentin (CAD). Materials and Methods Occlusal enamel of 80 premolars were wet grinded to obtain flat midcoronal dentin. Specimens were equally divided according to the substrate condition: sound and CAD by subjecting to pH-cycling for 14 days. Each dentin substrate was bonded with the adhesive systems used in this study: Single Bond universal adhesive or Prime&Bond universal (applied either in etch-and-rinse or self-etch adhesion protocol). Adhesive systems were utilized according to manufacturers’ instructions, then resin composite was built up. Specimens were tested for shear bond strength. The data were analyzed by three-way analysis of variance, and failure modes were determined using stereomicroscope. Results There was no statistically significant difference between the two tested adhesive systems on artificially created CAD with different adhesion protocols. On sound dentin, Single Bond universal, either in the etch-and-rinse or self-etch adhesion protocols, revealed higher statistically significant shear bond strength mean values compared with CAD. Conclusion Single Bond universal adhesive in an etch-and-rinse adhesion protocol improved only bonding to sound dentin, while no added positive effect for the etching step with Prime&Bond universal adhesive was found when bonded to both sound and CAD substrates. The influence of CAD on the performance of the universal adhesives was material-dependent.
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Yazici, A. Ruya, Zeren Yildirim, Atila Ertan, Gül Ozgunaltay, Berrin Dayangac, Sibel A. Antonson, and Donald E. Antonson. "Bond strength of one-step self-etch adhesives and their predecessors to ground versus unground enamel." European Journal of Dentistry 06, no. 03 (July 2012): 280–86. http://dx.doi.org/10.1055/s-0039-1698962.
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ABSTRACTObjectives: The aim of this study was to compare the shear bond strength of several self-etch adhesives to their two-step predecessors to ground and unground enamel.Methods: Seventy-five extracted, non-carious human third molar teeth were selected for this study. The buccal surfaces of each tooth were mechanically ground to obtain flat enamel surfaces (ground enamel), while the lingual surfaces were left intact (unground enamel). The teeth were randomly divided into five groups according to the adhesive systems (n=15): one-step self-etch adhesive - Clearfil S3 Bond, its two-step predecessor - Clearfil SE Bond, one-step self-etch adhesive - AdheSE One, and its two-step predecessor - AdheSE, and a two-step etch-and-rinse adhesive - Adper Single Bond 2(control). After application of the adhesives to the buccal and lingual enamel surfaces of each tooth, a cylindrical capsule filled with a hybrid composite resin (TPH) was seated against the surfaces. The specimens were stored in distilled water at 37°C for 24 hours, followed by thermocycling (5°C-55°C/500 cycles). They were subjected to shear bond strength test in a universal testing machine at a crosshead speed of 1.0 mm/minute. The data were compared using a two-way ANOVA, followed by Bonferroni test at P<.05Results: All adhesives exhibited statistically similar bond strengths to ground and unground enamel except for the etch-and-rinse adhesive that showed significantly higher bond strengths than the self-etch adhesives (P<.05). No significant differences in bond strength values were observed between ground and unground enamel for any of the adhesives tested (P=.17).Conclusions:Similar bond strengths to ground and unground enamel were achieved with one-step self-etch adhesives and their predecessors. Enamel preparation did not influence the bonding performance of the adhesives tested. (Eur J Dent 2012;6:280-286)
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El Araby, Alaa Morsy, and Yousef F. Talic. "The Effect of Thermocycling on the Adhesion of Self-etching Adhesives on Dental Enamel and Dentin." Journal of Contemporary Dental Practice 8, no. 2 (2007): 17–24. http://dx.doi.org/10.5005/jcdp-8-2-17.
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Abstract Aim The aim of the present study was to investigate the effectiveness of one total-etch self-priming adhesive and two one-step self-etching adhesive systems on the adhesion of a resin composite to both dentin and enamel. The effect of thermocycling on the adhesion was also investigated. The null hypothesis tested was thermocycling would not affect bond strengths to enamel and dentin treated with self-etching adhesives or a total-etch adhesive. Methods and Materials Two single-step self-etching adhesives [Xeno III (XE3) and Prompt L-Pop (PP)] and one two-step total-etch adhesive system (Prime & Bond NT) (P&B NT) were used in this study. Thirty cariesfree unrestored human third molars were used to make specimens of enamel and dentin. Different adhesives were applied on enamel and dentin surfaces according to the manufacturer's instructions then hybrid composite restorative material was condensed on the surface using a mold. The bonded specimens were stored in distilled water at 37°C for 24 hours before being tested. Half of the bonded specimens were tested for shear bond strength without thermocycling. The other half of the test specimens were thermocycled using a thermocycling apparatus in water baths held at 5°C and 55°C with a dwell time of one minute each for 10,000 cycles prior to shear testing. The mean shear bond strength before and after thermocycling was calculated, and the results were subjected to two-way analysis of variance (ANOVA) and repeated measure design to show the interaction between different materials and different times. Results The results showed shear bond strength on both enamel and dentin of the total-etch adhesive and the self-etching adhesives decreased after the specimens were subjected to thermocycling. Conclusions The null hypothesis tested “thermocycling would not affect bond strengths treated with selfetching adhesives” was rejected. Furthermore, the study revealed the following: The shear bond strength to both enamel and dentin of the total-etch adhesive and the self-etching adhesives decreased after the specimens were subjected to thermocycling. XE3 achieved the highest bond strength to both enamel and dentin (26.994±1.17 and 25.22±1.26, respectively). XE3 showed even better bonding after thermocycling to enamel and dentin than the total-etching system or PP. Although PP bonded to enamel showed lower shear bond strength value than XE3, it has durable bond strength even after thermocycling. Citation El Araby AM, Talic YF. The Effect of Thermocycling on the Adhesion of Self-etching Adhesives on Dental Enamel and Dentin. J Contemp Dent Pract 2007 February;(8)2:017-024.
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Araújo-Neto, VG, MM Moreira, R. Ñaupari-Villasante, DM De Paula, STCB Medeiros, AD Loguercio, and VP Feitosa. "Nanofiller Particles and Bonding Durability, Water Sorption, and Solubility of Universal Adhesives." Operative Dentistry 46, no. 6 (November 1, 2021): 690–97. http://dx.doi.org/10.2341/20-239-l.
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SUMMARY The aim of this study was to evaluate the influence of nanofiller particles in simplified universal adhesive on the long-term microtensile bond strength and silver nitrate up-take, as well as water sorption and solubility. Commercial adhesives Ambar Universal (FGM) in nanofilled-containing version (filled) and same lot without fillers (unfilled) were donated and applied by means of etch-and-rinse strategy. Microtensile bond strength was surveyed after 24-hours or 1-year water storage. Silver nitrate uptake was assayed using scanning electron microscopy (SEM). Water sorption and solubility experiments were performed based on ISO 4049:2009. Statistical analysis was performed using two-way ANOVA and Tukey test (p<0.05). The bond strength of both the adhesives were statistically similar at 24 hours (p>0.05), but the filled group attained significant bond strength reduction after aging when compared to initial bond strength (p<0.001). Conversely, unfilled adhesive presented stable adhesion after 1-year storage (p=0.262). Silver nitrate uptake was similar for both adhesives, with little silver impregnation at the hybrid and adhesive layers. Water sorption was higher with filled adhesive compared to the unfilled one (p=0.01). Conversely, solubility was higher in unfilled in comparison to filled one (p=0.008). The presence of nanofillers in universal adhesive achieves higher water sorption and dentin bond degradation, which did not occur in the unfilled adhesive.
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Romanenko, I. G., N. I. Chepurova, and A. S. Zueva. "Selection of adhesive systems in treatment of tooth root caries (literature review)." Bulletin of the Medical Institute "REAVIZ" (REHABILITATION, DOCTOR AND HEALTH) 11, no. 2 (May 25, 2021): 50–61. http://dx.doi.org/10.20340/vmi-rvz.2021.2.clin.2.
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Adhesive dentistry is the foundation on the basis of which there have been global changes in the concept of adhesion of composite materials in therapeutic dentistry, protocols for fixing ceramic restorations in orthopedic dentistry. But a number of unsolved problems remained – the adhesion of composite materials to sclerosed dentin and tooth root cement, the sensitivity of the components of the adhesive systems to the wet environment of the oral cavity and spatial stability in the presence of dentinal fluid moving centrifugally in the dentinal tubules, the lack of restoration of periodontal attachment to the defect that occurs during tooth root caries. The review analyzes the results of studies on the use of self-etching adhesive systems in the treatment of root caries. The physician's ability to choose an adhesive system in a particular clinical case demonstrates his fundamental knowledge and minimizes the percentage of errors that he can make during the treatment phase.
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Shah, Rupal J., Sanjay B. Lagdive, Arun Kumar Talkal, Hemal Agrawal, and Bhavyata Darji. "Knowledge and Attitude toward Denture Adhesives: A Survey on Dentists and Complete Denture Wearers." International Journal of Prosthodontics and Restorative Dentistry 5, no. 3 (2015): 74–80. http://dx.doi.org/10.5005/jp-journals-10019-1134.
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ABSTRACT Aims and objectives The objective of the study was to investigate the attitude and assess to the knowledge of complete denture wearers and dentists toward denture adhesive and to initiate awareness for the same. Materials and methods A questionnaire was mailed to 850 dentists out of which 456 dentists replied. Three hundred and sixty-two complete denture wearers were surveyed with a different questionnaire in the department and were assessed for awareness and usage of denture adhesive. Results The results of this survey indicated that 66.89% of dentists used denture adhesives in their practice. Complete denture wearers lack awareness regarding use of denture adhesives as 74.5% of them had never tried denture adhesives. Majority of dentists are also unfamiliar with their beneficial effects. Conclusion It should be emphasized that denture adhesives can be considered as a beneficial adjunct to improve fit, comfort, and function of dentures, and psychological security of patients when indicated in schools of dentistry. The knowledge of the patients will always depend on the knowledge of the dentists and how well the dentists educate their patients. Key message The outcome of this survey demonstrates that the rate of knowledge of dental practitioners and patients toward denture adhesives has not been in a good situation. How to cite this article Shah RJ, Lagdive SB, Talkal AK, Agrawal H, Darji B. Knowledge and Attitude toward Denture Adhesives: A Survey on Dentists and Complete Denture Wearers. Int J Prosthodont Restor Dent 2015;5(3):74-80.
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Loguercio, AD, D. Salvalaggio, AE Piva, CA Klein-Júnior, M. de LR Accorinte, MM Meier, RHM Grande, and A. Reis. "Adhesive Temperature: Effects on Adhesive Properties and Resin-Dentin Bond Strength." Operative Dentistry 36, no. 3 (May 1, 2011): 293–303. http://dx.doi.org/10.2341/10-218l.
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SUMMARY Objectives To evaluate the effect of adhesive temperature on the resin-dentin bond strength (μTBS), nanoleakage (NL), adhesive layer thickness (AL), and degree of conversion (DC) of ethanol/water- (SB) and acetone-based (PB) etch-and-rinse adhesive systems. Methods The bottles of the two adhesives were kept at each temperature (5°C, 20°C, 37°C, and 50°C) for 2 hours before application to demineralized dentin surfaces of 40 molars. Specimens were prepared for μTBS testing. Bonded sticks (0.8 mm2) were tested under tension (0.5 mm/min). Three bonded sticks from each tooth were immersed in silver nitrate and analyzed by scanning electron microscopy. The DC of the adhesives was evaluated by Fourier transformed infrared spectroscopy. Results Lower μTBS was observed for PB at 50°C. For SB, the μTBS values were similar for all temperatures. DC was higher at 50°C for PB. Higher NL and thicker AL were observed for both adhesives in the 5°C and 20°C groups compared to the 37°C and 50°C groups. The higher temperatures (37°C or 50°C) reduced the number of pores within the adhesive layer of both adhesive systems. Conclusions It could be useful to use an ethanol/water-based adhesive at 37°C or 50°C and an acetone-based adhesive at 37°C to improve adhesive performance.
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De Munck, J., P. E. Van den Steen, A. Mine, K. L. Van Landuyt, A. Poitevin, G. Opdenakker, and B. Van Meerbeek. "Inhibition of Enzymatic Degradation of Adhesive-Dentin Interfaces." Journal of Dental Research 88, no. 12 (October 27, 2009): 1101–6. http://dx.doi.org/10.1177/0022034509346952.
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Adhesive procedures activate dentin-associated matrix metalloproteinases (MMPs), and so iatrogenically initiate bond degradation. We hypothesized that adding MMP inhibitors to adhesive primers may prevent this endogenous enzymatic degradation, thereby improving bond durability. A non-specific MMP inhibitor (chlorhexidine) and a MMP-2/9-specific inhibitor (SB-3CT) were admixed to the primers of an etch & rinse and a self-etch adhesive, both considered as gold-standard adhesives within their respective categories. For dentin powder exposed to the adhesives under clinical application conditions, gelatin zymography revealed the release of MMP-2 (not of MMP-9) by the etch & rinse adhesive, while no release of enzymes could be detected for the mild self-etch adhesive, most likely because of its limited dentin demineralization effect. The built-in MMP inhibitors appeared effective in reducing bond degradation only for the etch & rinse adhesive, and not for the self-etch adhesive. Water sorption of adhesive interfaces most likely remains the principal mechanism of bond degradation, while endogenous enzymes appear to contribute to bond degradation of only etch & rinse adhesives.
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Zivkovic, Slavoljub, Mila Kolar, Larisa Blazic, Mirjana Vucetic, and Goran Tosic. "Smear layer on dentin in restorative dentistry." Serbian Dental Journal 51, no. 4 (2004): 169–76. http://dx.doi.org/10.2298/sgs0404169z.
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Adhesion to enamel has become a routine technique in restorative dentistry. Adhesion to dentin, however, is still under investigation. Except structural elements of the dentin, smear layer has been one of the reasons that the interaction between the adhesive system and this tissue is difficult. The smear layer tissue created by cutting a tooth. It varies in thickness, roughness, density and degree of attachment andoccludes tubules and reduces the dental permeabilita. Dentin adhesivesystems can react with intertubular and peritubular dentin only when this smear layer is removed or when the adhesive system is capable of diffusion through layer of debris. As part of restorative procedures required by adhesive dentistry, the smear layer must be removed, modified or impregnated by the resin to allow for bonding between the tooth and the restorative material. For remove and dissolve of smear layer acid conditioners on total etch and self-etching primers were used. Self-etching primer systems are undergoing rapid evolution; their results are not yet sufficiently predictable overall, but some systems have achieved positive results in both enamel and dentin bonding. Further studies are necessary to confirm the long-term efficiency of these self-etching primers.
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Walls, A. "Adhesive technology for restorative dentistry." British Dental Journal 198, no. 11 (June 2005): 727. http://dx.doi.org/10.1038/sj.bdj.4812452.
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Lynch, Christopher. "Vital guide to Adhesive dentistry." Vital 3, no. 4 (December 2006): 21–24. http://dx.doi.org/10.1038/vital513.
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Kachalia, Parag R. "Adhesive Technology for Restorative Dentistry." Journal of Prosthodontics 15, no. 4 (July 2006): 272–73. http://dx.doi.org/10.1111/j.1532-849x.2006.00119.x.
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Ritter, André V. "Talking with Patients Adhesive Dentistry." Journal of Esthetic and Restorative Dentistry 16, no. 3 (May 2004): 205. http://dx.doi.org/10.1111/j.1708-8240.2004.tb00035.x.
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Phillips, Scott M. "Adhesive Technology for Restorative Dentistry." Journal of Dental Education 69, no. 12 (December 2005): 1391–93. http://dx.doi.org/10.1002/j.0022-0337.2005.69.12.tb04040.x.
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Saito, T., T. Takamizawa, R. Ishii, A. Tsujimoto, E. Hirokane, WW Barkmeier, MA Latta, and M. Miyazaki. "Influence of Application Time on Dentin Bond Performance in Different Etching Modes of Universal Adhesives." Operative Dentistry 45, no. 2 (March 1, 2020): 183–95. http://dx.doi.org/10.2341/19-028-l.
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SUMMARY We attempted to determine the effect of universal adhesive application time on dentin bond performance in different etching modes based on shear bond strength (SBS) tests and surface free energy (SFE) measurements. The five universal adhesives used were Adhese Universal (AU), Clearfil Universal Bond Quick (CQ), G-Premio Bond (GP), Scotchbond Universal (SU), and Tokuyama Universal Bond (TU). Bovine dentin specimens were divided into four groups of 10 for each adhesive. SBS and SFE were determined after applying the following surface treatments: 1) self-etch (SE) mode with immediate air blowing after adhesive application (IA treatment), 2) SE mode with prolonged application time (PA treatment), 3) etch-and-rinse (ER) mode with IA treatment, and 4) ER mode with PA treatment. Bonded specimens were subjected to SBS testing. The SFE of adhesive-treated dentin surfaces was measured after rinsing with acetone and water. Three-way analysis of variance revealed that dentin SBS values (p<0.001) were significantly influenced by the factors of adhesive type and application duration, but the factor of pre-etching was not significant (p=0.985). The manufacturer's instructions require longer application times for AU and SU, which showed significantly lower SBS values in IA than in PA treatment in both etching modes. However, the difference in the other adhesives was not significant between the IA and PA treatments in either etching mode. The total SFE (γS) was dependent on the adhesive and etching mode. The γS value of the initial group (SiC paper ground group) at baseline was 69.5 (mN·m−1) and that of the pre-etching group at baseline was 30.6 (mN·m−1). For all the adhesives, γS in SE mode showed significantly higher values than in ER mode, regardless of the application time. In SE mode, almost all universal adhesives tested showed lower γS values in PA treatment than in IA treatment. For ER mode, all the adhesives showed significantly higher γS values than those of the pre-etching baseline, regardless of the application time. Most adhesives did not show any significant differences in γS values between IA and PA treatments, regardless of etching mode.
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Lee, J. J. W., Y. Wang, I. K. Lloyd, and B. R. Lawn. "Joining Veneers to Ceramic Cores and Dentition with Adhesive Interlayers." Journal of Dental Research 86, no. 8 (August 2007): 745–48. http://dx.doi.org/10.1177/154405910708600811.
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Adhesive joining of veneers to cores offers potential simplicity and economy in the fabrication of all-ceramic crowns. We tested the hypothesis that resin-based adhesives can be used for such fabrication without compromising mechanical integrity of the crown structure. A simple test procedure for quantifying this hypothesis was proposed. A model glass veneer layer 1 mm thick (representative of porcelain), adhesively bonded onto a glass-like core substrate (ceramic or dental enamel), was loaded at its top surface with a hard sphere (occlusal force) until a radial crack initiated at the veneer undersurface. The critical loads for fracture, visually observable in the transparent glass, afforded a measure of the predisposition for the adhesive to cause veneer failure in an occlusal overload. Two adhesives were tested, one a commercial epoxy resin and the other a relatively stiff in-house-developed composite. The results confirmed that stiffer adhesives provide higher resistance to failure.
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ZENÓBIO, Elton Gonçalves, Elias Youssef Abou ABDALLAH, Flávia Isabela BARBOSA, Anna Cristina Petraccone CAIXETA, and Rodrigo Villamarim SOARES. "Tissue adhesive in free gingival graft." RGO - Revista Gaúcha de Odontologia 63, no. 1 (March 2015): 69–74. http://dx.doi.org/10.1590/1981-8637201500010000101427.
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The aim of the present study was to review the literature regarding the utilization of 2-octyl cyanoacrylate's (Dermabond®, Ethicon US, USA) as a tissue adhesive in dentistry; also, to report its use in the stabilization and fixation of a free gingival graft, indicated to increase the width of the keratinized attached mucosa at the lower incisive region. Literature analysis revealed numerous indications for this tissue adhesive in the medical field related to maxillofacial injuries. In dentistry, clinical reports, as well as controlled clinical studies conducted in humans and in animal models, using histological analysis described positive results for the use of different cyanoacrylate-based tissue adhesives. These studies reported that the use of tissue adhesives reduced the surgical procedure time period, eliminated postoperative visits as well as the discomfort of suture removal and, in addition, did not interfere with the clinical repair process. Favorable results, like the ones described in the literature, were obtained in the present case report using Dermabond®.
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El-Deeb, HA, HH Al Sherbiney, and EH Mobarak. "Bond Durability of Adhesives Containing Modified-monomer With/Without-fluoride After Aging in Artificial Saliva and Under Intrapulpal Pressure Simulation." Operative Dentistry 38, no. 1 (January 1, 2013): 48–56. http://dx.doi.org/10.2341/11-389-l.
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SUMMARY Objective: To evaluate the dentin bond strength durability of adhesives containing modified-monomer with/without-fluoride after storage in artificial saliva and under intrapulpal pressure simulation (IPPS). Materials and Methods: The occlusal enamel of 48 freshly extracted teeth was trimmed to expose midcoronal dentin. Roots were sectioned to expose the pulp chamber and to connect the specimens to the pulpal-pressure assembly. Specimens were assigned into four groups (n=12) according to adhesive system utilized: a two-step etch-and-rinse adhesive system (SB, Adper Single Bond 2, 3M ESPE), a two-step self-etch adhesive system (CSE, Clearfil SE Bond, Kuraray Medical Inc), and two single-step self-etch adhesives with the same modified monomer (bis-acrylamide)—one with fluoride (AOF, AdheSE One F, Ivoclar-Vivadent) and the other without (AO, AdheSE One, Ivoclar-Vivadent). Bonding was carried out while the specimens were subjected to 15-mm Hg IPPS. Resin composite (Valux Plus, 3M ESPE) buildups were made. After curing, specimens were aged in artificial saliva and under 20-mm Hg IPPS at 37°C in a specially constructed incubator either for 24 hours or six months prior to testing. Bonded specimens (n=6/group) were sectioned into sticks (n=24/group) with a cross section of 0.9 ± 0.01 mm2 and subjected to microtensile bond strength (μTBS) testing using a universal testing machine. Data were statistically analyzed using two-way analysis of variance (ANOVA) with repeated measures, one-way ANOVA tests, and a t-test (p<0.05). Failure modes were determined using a scanning electron microscope. Results: The μTBS values of SB and CSE fell significantly after six-month storage in artificial saliva and under IPPS, yet these values remained significantly higher than those for the other two adhesives with modified monomers. There was no significant difference in the bond strength values between fluoride-containing and fluoride-free self-etch adhesive systems (AOF and AO) after 24 hours or six months. Modes of failure were mainly adhesive and mixed. Conclusions: Based on the results of this study, 1) Fluoride addition did not affect dentin bond durability; and 2) despite the fact that the single-step adhesive system with modified monomer showed stability, bond strengths associated with these systems remained lower than those of multistep adhesive systems.
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Gresnigt, M. M. M. "Online survey on adhesive dentistry: the results." Nederlands Tijdschrift Voor Tandheelkunde 130, no. 2 (February 7, 2023): 59–62. http://dx.doi.org/10.5177/ntvt.2023.02.22106.
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Oliveira Jr, Orides Ferrari de, Patrícia Valéria Manozzo Kunz, Flares Baratto Filho, Gisele Maria Correr, Leonardo Fernandes da Cunha, and Carla Castiglia Gonzaga. "Influence of Pre-Curing Different Adhesives on the Color Stability of Cemented Thin Ceramic Veneers." Brazilian Dental Journal 30, no. 3 (June 2019): 259–65. http://dx.doi.org/10.1590/0103-6440201902369.
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Abstract The objective was to evaluate the color stability of thin ceramic veneers as a function of the curing mode (with and without pre-cure) of different adhesive systems applied to the internal surface of ceramics. Five adhesive systems (Scotchbond Multi-Purpose, Single Bond Universal, Gluma 2 Bond, Ambar, and Ambar APS) and photo-cured resin cement (Allcem Veneer) were used for cementing 0.6 mm-thick feldspathic veneers (Mark II) on composite resin substrates (Charisma Diamond). The groups, according to adhesive system, were divided into two subgroups (n=10): i) adhesive and resin cement were polymerized separately (pre-cure of the adhesive), ii) adhesive and resin cement were polymerized simultaneously. The CIELab color parameters were determined with a spectrophotometer at 24h (baseline), 7 days, 30 days and 12 months. Data were analyzed by two-way ANOVA and Tukey’s test (α=0.05). The results indicated statistically significant differences for adhesive systems and time. The mode of curing of the adhesive system was not statistically significant: pre-cured adhesives (2.6±1.3) and not pre-cured adhesives (2.8±1.4). For the adhesives, ΔE values varied in the following order: Ambar-APS (1.6±0.5) < Scotchbond Multi-Purpose (2.6±1.2) = Gluma 2 Bond (2.7±1.2) = Ambar (2.9±1.2) < Single Bond Universal (3.5±1.5). For time, ΔE values were: 7 days (1.7±0.7), 30 days (3.5±1.2) and 12 months (2.9±1.3). It can be concluded that the different adhesive systems used for cementing thin ceramic veneers influenced the final color of the indirect restorations. The adhesives curing mode did not present a significant effect in the color stability of thin ceramic veneers.
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Van Landuyt, K. L., J. De Munck, J. Snauwaert, E. Coutinho, A. Poitevin, Y. Yoshida, S. Inoue, et al. "Monomer-Solvent Phase Separation in One-step Self-etch Adhesives." Journal of Dental Research 84, no. 2 (February 2005): 183–88. http://dx.doi.org/10.1177/154405910508400214.
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One-step adhesives bond less effectively to enamel/dentin than do their multi-step versions. To investigate whether this might be due to phase separation between adhesive ingredients, we characterized the interaction of 5 experimental and 3 commercial self-etch adhesives with dentin using transmission electron microscopy. All adhesives were examined for homogeneity by light microscopy. Bonding effectiveness to dentin was determined with the use of a micro-tensile bond-strength protocol. The lower bond strength of the one-step adhesives was associated with light-microscopic observation of multiple droplets that disappeared slowly. Interfacial analysis confirmed the entrapment of droplets within the adhesive layer. The prompt disappearance of droplets upon application of a small amount of HEMA (2-hydroxyethyl methacrylate) or a HEMA-containing bonding agent, as well as the absence of droplets at the interface of all HEMA-containing adhesives, strongly suggests that the adhesive monomers separate from water upon evaporation of ethanol/acetone. Upon polymerization, the droplets become entrapped within the adhesive, potentially jeopardizing bond durability. This can be avoided by strong air-drying of the adhesive, thereby removing interfacial water and thus improving bonding effectiveness.
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Brkanović, Sandra, Eva Klarić Sever, Josipa Vukelja, Anja Ivica, Ivana Miletić, and Silvana Jukić Krmek. "Comparison of Different Universal Adhesive Systems on Dentin Bond Strength." Materials 16, no. 4 (February 12, 2023): 1530. http://dx.doi.org/10.3390/ma16041530.
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Over the past few decades, adhesive dentistry has advanced significantly. In light of minimal-invasive dentistry, this novel technique advocates a more conservative cavity design that relies on the efficiency of present enamel-dentine adhesives. The study aimed to address the scientific deficit in understanding the long-term bonding performance of universal adhesives and to provide a new clinical solution with desirable bond strength to dentin. The dentin bond strength of three bonding agents, G2-Bond Universal (GC), Clearfil SE Bond (Kuraray), and Scotchbond Universal Plus (3M ESPE), was evaluated following various storage and etching modes. The UltraTester (Ultradent) bond strength testing machine was used to assess shear bond strength. The results showed that thermal cycling and the choice of adhesive system significantly affected the shear bond strength (p = 0.018 and p = 0.001, respectively). Among the three adhesives, Scotchbond Universal Plus had the lowest bond strength value (mean value = 24.78 MPa), while G2-Bond Universal was found to have desirable shear bond strength to dentin compared to the other adhesives, even after one year in the oral environment (mean value = 35.15 MPa). These findings imply that the HEMA-free universal adhesive G2-Bond Universal is the most effective universal adhesive for clinical practices, particularly when applied in the self-etch mode.
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Ouchi, H., A. Tsujimoto, K. Nojiri, K. Hirai, T. Takamizawa, WW Barkmeier, MA Latta, and M. Miyazaki. "Effect of Oxygen Inhibition Layer of Universal Adhesives on Enamel Bond Fatigue Durability and Interfacial Characteristics With Different Etching Modes." Operative Dentistry 42, no. 6 (November 1, 2017): 636–45. http://dx.doi.org/10.2341/16-255-l.
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SUMMARY Objective: The purpose of this study was to evaluate the effect of the oxygen inhibition layer of universal adhesive on enamel bond fatigue durability and interfacial characteristics with different etching modes. Methods: The three universal adhesives used were Scotchbond Universal Adhesive (3M ESPE, St Paul, MN, USA), Adhese Universal (Ivoclar Vivadent, Schaan, Lichtenstein), and G-Premio Bond (GC, Tokyo, Japan). The initial shear bond strength and shear fatigue strength to enamel was determined in the presence and absence of the oxygen inhibition layer, with and without phosphoric acid pre-etching. The water contact angle was also measured in all groups using the sessile drop method. Results: The enamel bonding specimens with an oxygen inhibition layer showed significantly higher (p<0.05) initial shear bond strengths and shear fatigue strengths than those without, regardless of the adhesive type and etching mode. Moreover, the water contact angles on the specimens with an oxygen inhibition layer were significantly lower (p<0.05) than on those without, regardless of etching mode. Conclusion: The results of this study suggest that the oxygen inhibition layer of universal adhesives significantly increases the enamel bond fatigue durability and greatly changes interfacial characteristics, suggesting that the bond fatigue durability and interfacial characteristics of these adhesives strongly rely on its presence.
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Perdigão, J., M. Dutra-Corrêa, CHC Saraceni, MT Ciaramicoli, VH Kiyan, and CS Queiroz. "Randomized Clinical Trial of Four Adhesion Strategies: 18-Month Results." Operative Dentistry 37, no. 1 (January 1, 2012): 3–11. http://dx.doi.org/10.2341/11-222-c.
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Clinical Relevance The 18-month retention rate of the two self-etch adhesives used in the present study was similar to that of two etch-and-rinse adhesives from the same manufacturer. However, the quality of enamel margins was significantly better for the two etch-and-rinse adhesives. SUMMARY Statement of the Problem With Institutional Review Board approval, 39 patients who needed restoration of noncarious cervical lesions (NCCLs) were enrolled in this study. A total of 125 NCCLs were selected and randomly assigned to four groups: 1) a three-step etch-and-rinse adhesive, Adper Scotchbond Multi-Purpose (MP, 3M ESPE, St Paul, MN, USA); 2) a two-step etch-and-rinse adhesive, Adper Single Bond Plus (SB, 3M ESPE); 3) a two-step self-etch adhesive, Adper Scotchbond SE (SE, 3M ESPE); and 4) a one-step self-etch adhesive, Adper Easy Bond (EB, 3M ESPE). A nanofilled composite resin was used for all restorations. Restorations were evaluated at six months and 18 months using modified U.S. Public Health Service (USPHS) parameters. Results At six months after initial placement, 107 restorations (85.6% recall rate) were evaluated. At 18 months, 94 restorations (75.2% recall rate) were available for evaluation. The 6 mo/18 mo overall retention rates (%) were 100/90.9 for MP; 100/91.7 for SB; 100/90.9 for SE; and 96.4/92.3 for EB with no statistical difference between any pair of groups at each recall. Sensitivity to air decreased significantly for all adhesives from the preoperative to the postoperative stage and was stable thereafter. Interfacial staining did not change statistically from baseline to six months; however, interfacial staining at the enamel margins was statistically worse at 18 months than at baseline for the two self-etch adhesives EB and SE. Marginal adaptation was statistically worse at 18 months compared with baseline only for EB. This tendency was already significant at the six-month recall. Conclusion Although 18-month retention was similar for the different adhesion strategies, enamel marginal deficiencies were more prevalent for the self-etch adhesives.
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RICCI, Weber Adad, Camila de Paula Telles Pires LUCAS, Ana Cláudia Gabrielli PIVETA, Maurício Meirelles NAGLE, and Andréia Affonso Barretto MONTANDON. "Clinical application of adhesive systems - a critical review: biomimetic approach." RGO - Revista Gaúcha de Odontologia 63, no. 1 (March 2015): 55–62. http://dx.doi.org/10.1590/1981-863720150001000082489.
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The various functions and clinical applications of adhesive systems have become a fundamental part of restorative treatment. The biggest challenge for such systems is to provide adequate adhesion to the different tissues, which can be very diverse in nature. When choosing the appropriate adhesive system, the dentist should be familiar with the origin, composition, action mechanism and method of application of each system. The commercially available products and their high technical status have made it possible for the clinician to develop a philosophy of maximum tissue preservation, optimized esthetics, up-to-date concepts and procedures and full function of the restored element, compatible with biomimetic theory. The literature describes the superior qualities of results obtained with three-step total etching adhesives and the use of chlorhexidine as a factor to increase longevity. Future perspectives include the use of ethanol, inactivating agents of enzymes released in the adhesive process and the action of agents that act upon the dentin matrix.
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KEREKES-MATHE, BERNADETTE, MELINDA SZEKELY, ORSOLYA CSISZER, MELINDA KIS, VANDA ROXANA NIMIGEAN, VICTOR NIMIGEAN, and KINGA DORNER. "Effect of different self-etch adhesive application methods on the shear bond strengths of composite resin to dentin." Romanian Biotechnological Letters 25, no. 6 (October 18, 2020): 2188–93. http://dx.doi.org/10.25083/rbl/25.6/2188.2193.
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Dental adhesion is a complex phenomenon that has challenged the conventional biomechanical principles applied to Dental Medicine. Many of the advances in aesthetic restorative dentistry are due to dental adhesion: bond of direct resin-based restorations, bond of all ceramic restorations, bond of orthodontic brackets, bond of indirect resin-based restorations and improving tooth shape and colour. An adhesive is a material that not only joins two substrates together, but also transfers loads from one surface to another. Therefore, the performance of dental adhesion is measured through adhesion strength. This paper aims at investigating the influence of application method and the optional preliminary acid etching on the shear bond strengths of a composite resin to dentin, using self-etch adhesives in single or double layer. Buccal surfaces of 40 extracted human teeth were prepared and dental adhesives were applied on the dentin surfaces. Microshear bond strength increased when double-layer application was used, but this improvement was adhesive dependent. The use of optional preliminary acid etching did not improve significantly the bond strength to dentin.
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Yao, C., H. Yang, J. Yu, L. Zhang, Y. Zhu, and C. Huang. "High Bond Durability of Universal Adhesives on Glass Ceramics Facilitated by Silane Pretreatment." Operative Dentistry 43, no. 6 (November 1, 2018): 602–12. http://dx.doi.org/10.2341/17-227-l.
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SUMMARY Objective: This study aimed to investigate the long-term effectiveness of ceramic–resin bonding with universal adhesives in non–silane-pretreated and silane-pretreated modes after 10,000 cycles of thermal aging. Methods and Materials: All Bond Universal, Adhese Universal, Clearfil Universal Bond, and Single Bond Universal were selected. Etched lithium disilicate glass ceramics were prepared, randomly assigned to groups, and pretreated with or without ceramic primer containing silane coupling agent prior to the application of universal adhesive (ie, silane-pretreated or non–silane-pretreated mode). The shear bond strength (SBS), microleakage, and field-emission scanning electron microscopy images of the ceramic–resin interfaces were examined after 24 hours of water storage or 10,000 thermal cycles. Light microscopy and confocal laser scanning microscopy (CLSM) were performed to analyze marginal sealing ability. Results: SBS and microleakage percentage were significantly affected by bonding procedure (non–silane-pretreated or silane-pretreated mode) and aging (24 hours or 10,000 thermal cycles). After the universal adhesives in the non–silane-pretreated mode were aged, SBS significantly decreased and microleakage percentage increased. By contrast, the SBS of Adhese Universal, Clearfil Universal Bond, and Single Bond Universal decreased, and the microleakage percentage of all of the adhesives increased in the silane-pretreated mode. However, after aging, the SBS of the silane-pretreated groups were higher and their microleakage percentages lower than those of the non–pretreated groups. In the non–silane-pretreated mode, adhesive failure was dominant and gaps between composite resin and the adhesive layer were significant when observed with CLSM. Conclusions: The simplified procedure reduced the ceramic–resin bonding effectiveness of universal adhesives after aging, and additional silane pretreatment helped improve the long-term durability.
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Libonati, Antonio, Virginia Di Taranto, Lucia Memè, Gianni Gallusi, and Vincenzo Campanella. "SEM Evaluation of the Hybrid Layer of Two Universal Adhesives on Sound and DI Type II Affected Dentin." Applied Sciences 12, no. 22 (November 9, 2022): 11372. http://dx.doi.org/10.3390/app122211372.
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Universal nanofilled adhesives were recently introduced in restorative dentistry to simplify clinical procedures and improve adhesion in different clinical situation. This study investigated the effectiveness of two universal adhesives on both sound and dentinogenesis imperfecta type II (DI-II)-affected teeth. To evaluate the effectiveness of adhesion on both sound and DI-II-affected teeth, four samples, two sound extracted molars and two extracted molars affected by DI-II were selected. Coronal enamel and dentin were exposed, and the samples were used for testing two different universal adhesives, Universal Bond (Tokuyama) and All-Bond Universal (Bisco). After the adhesive procedures, the samples were stored in saline at room temperature for one week prior to SEM investigation for the interfacial bonding layer. The samples were longitudinally sectioned into two parts, obtaining two sections for the evaluation of the adhesive interface to the SEM. The SEM-morphology of the hybrid layer on the enamel was similar for the two universal adhesives tested. The study of the hybrid layer on sound dentin confirmed the great versatility of All-Bond Universal and Universal Bond adhesives in managing adhesion even on pathological dental substrates. Both universal adhesives tested showed encouraging results on DI-II-affected dentin, creating an effective hybrid layer even on the atubular and less mineralized altered dentin.
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van Foreest, A. W. "Adhesive Dentistry with Direct Restorative Materials." Veterinary Quarterly 20, sup1 (January 1998): S33—S34. http://dx.doi.org/10.1080/01652176.1998.10807396.
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Tonetto, Mateus Rodrigues, Alvaro Henrique Borges, Matheus Coelho Bandeca, Fausto Frizzera Borges, Lucas Fontanari, and Marcelo Ferrarezi de Andrade. "Clinical Protocol for Esthetic Restoration using a Self-etching Adhesive." World Journal of Dentistry 4, no. 3 (2013): 202–7. http://dx.doi.org/10.5005/jp-journals-10015-1232.
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ABSTRACT The advent of new adhesive systems is making techniques and clinical protocols to become faster and simpler, however it does not reduce the importance of knowledge of the properties, characteristics and interaction of dental materials with the tooth structure. Among the adhesives that have recently emerged, highlight the self-etching systems, especially the two-step selfetching, in which the acid primer is available in a separate bottle from the adhesive. These adhesives have shown good results for bond strength, microleakage and postoperative sensitivity, being an option for direct adhesive restorations in anterior teeth. This way, the present case report describes the step-by-step making of a class IV restoration in an upper right central incisor using atwo-step adhesive system, obtaining satisfactory results. How to cite this article Tonetto MR, Borges FF, Fontanari L, Borges AH, Bandeca MC, de Andrade MF. Clinical Protocol for Esthetic Restoration using a Self-etching Adhesive. World J Dent 2013;4(3):202-207.
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El-Deeb, HA, O. Badran, and EH Mobarak. "One-year Adhesive Bond Durability to Coronal and Radicular Dentin Under Intrapulpal Pressure Simulation." Operative Dentistry 40, no. 5 (September 1, 2015): 540–47. http://dx.doi.org/10.2341/14-134-l.
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SUMMARY Objective To evaluate the microtensile bond strength (μTBS) of different adhesives to coronal vs radicular dentin after one year of storage in artificial saliva and under intrapulpal pressure (IPP) simulation. Methods and Materials Roots of 36 freshly extracted premolars were sectioned 5 mm apical to the cemento-enamel junction and pulp tissue was removed. Buccal enamel and cementum were trimmed to obtain standardized flat dentin surfaces. Specimens were divided into three groups (n=12/group) according to the adhesive strategies utilized: a two-step etch-and-rinse adhesive; a two-step self-etch adhesive; and a single-step self-etch adhesive. Adhesives and resin composite were applied to coronal and radicular dentin while the specimens were subjected to IPP simulation. After curing, specimens were stored in artificial saliva at 37°C in a specially constructed incubator while the IPP was maintained for either 24 hours or one year prior to testing. Bonded specimens were sectioned into sticks with a cross section of 0.8 ± 0.01 mm2 and subjected to μTBS testing. Data were statistically analyzed using multi-way analysis of variance (ANOVA) with repeated measures; one-way ANOVA tests; and Bonferroni post hoc test (p<0.05). Failure modes were determined using a scanning electron microscope at 100× magnification. Results ANOVA results revealed a statistically significant effect for the adhesive strategy (p<0.001) and storage period (p<0.001) as well as for their interaction (p=0.024) on the μTBS. However, dentin substrate and its interactions revealed no significant effects. For both dentin substrates, the two-step self-etch adhesive revealed statistically significantly higher μTBS values than did the other two adhesives after 24 hours and one year of storage. After one-year storage, a significant decrease in bond strength values of all tested adhesives occurred with both dentin substrates. Modes of failure were mainly adhesive and mixed. Conclusions Adhesives were not sensitive to structural differences between coronal and radicular dentin even after one year of storage under IPP simulation. However, all tested adhesive systems strategies were sensitive to storage.
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Chersoni, S., G. L. Acquaviva, C. Prati, M. Ferrari, S. Grandini, D. H. Pashley, and F. R. Tay. "In vivo Fluid Movement through Dentin Adhesives in Endodontically Treated Teeth." Journal of Dental Research 84, no. 3 (March 2005): 223–27. http://dx.doi.org/10.1177/154405910508400303.
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Fluid transudation through simplified dentin adhesives can occur in bonded vital crown dentin, since these adhesives behave as permeable membranes after polymerization. The effect of adhesive permeability in endodontically treated teeth is unknown. This study examined the hypothesis that in vivo fluid movement through simplified adhesives occurs when they are applied to root canals. Dowel spaces were prepared in endodontically treated teeth with single root canals. Six adhesives were applied to the intra-radicular dentin of canal walls. Impressions were obtained with polyvinyl siloxane, and replicas were fabricated with the use of polyether impression material. Replica hemisections were gold-coated for SEM examination. Fluid transudation was evident on the adhesive surfaces of all simplified total-etch and self-etch adhesives. Conversely, most of the specimens bonded with the control three-step total-etch adhesive were devoid of fluid droplets. Permeability of simplified adhesives results in water movement, even in root-treated dentin. This may adversely affect the coupling of auto-/dual-cured resin cements.
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Van Landuyt, K. L., J. Snauwaert, J. De Munck, E. Coutinho, A. Poitevin, Y. Yoshida, K. Suzuki, P. Lambrechts, and B. Van Meerbeek. "Origin of Interfacial Droplets with One-step Adhesives." Journal of Dental Research 86, no. 8 (August 2007): 739–44. http://dx.doi.org/10.1177/154405910708600810.
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Contemporary one-step self-etch adhesives are often documented with interfacial droplets. The objective of this study was to research the origin of these droplets. Two HEMA-rich and one HEMA-free adhesive were applied to enamel and dentin, with the lining composite either immediately cured or cured only after 20 min. All one-step adhesives exhibited droplets at the interface; however, the droplets had two different origins. With the HEMA-free adhesives, droplets were located throughout the adhesive layer and were stable in number over time. With the HEMA-rich adhesives, the droplets were observed exclusively at the adhesive resin/composite interface, and their number increased significantly when the composite was delay-cured. Only the latter droplets caused a significant drop in bond strength after delayed curing. While the droplets in the HEMA-free one-step adhesives should be ascribed to phase separation, those observed with HEMA-rich adhesives resulted from water absorption from dentin through osmosis.
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Bourgi, Rim, Umer Daood, Mohammed Nadeem Bijle, Amr Fawzy, Maroun Ghaleb, and Louis Hardan. "Reinforced Universal Adhesive by Ribose Crosslinker: A Novel Strategy in Adhesive Dentistry." Polymers 13, no. 5 (February 26, 2021): 704. http://dx.doi.org/10.3390/polym13050704.
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Enzymatic biodegradation of demineralized collagen fibrils could lead to the reduction of resin–dentin bond strength. Therefore, methods that provide protection to collagen fibrils appear to be a pragmatic solution to improve bond strength. Thus, the study’s aim was to investigate the effect of ribose (RB) on demineralized resin–dentin specimens in a modified universal adhesive. Dentin specimens were obtained, standardized and then bonded in vitro with a commercial multi-mode adhesive modified with 0, 0.5%, 1%, and 2% RB, restored with resin composite, and tested for micro-tensile bond strength (µTBS) after storage for 24 h in artificial saliva. Scanning electron microscopy (SEM) was performed to analyze resin–dentin interface. Contact angles were analyzed using a contact angle analyzer. Depth of penetration of adhesives and nanoleakage were assessed using micro-Raman spectroscopy and silver tracing. Molecular docking studies were carried out using Schrodinger small-molecule drug discovery suite 2019-4. Matrix metalloproteinases-2 (MMP-2) and cathepsin-K activities in RB-treated specimens were quantified using enzyme-linked immunosorbent assay (ELISA). The significance level was set at α = 0.05 for all statistical analyses. Incorporation of RB at 1% or 2% is of significant potential (p < 0.05) as it can be associated with improved wettability on dentin surfaces (0.5% had the lowest contact angle) as well as appreciable hybrid layer quality, and higher resin penetration. Improvement of the adhesive bond strength was shown when adding RB at 1% concentration to universal adhesive (p < 0.05). Modified adhesive increased the resistance of collagen degradation by inhibiting MMP-2 and cathepsin-K. A higher RB concentration was associated with improved results (p < 0.01). D-ribose showed favorable negative binding to collagen. In conclusion, universal adhesive using 1% or 2% RB helped in maintaining dentin collagen scaffold and proved to be successful in improving wettability, protease inhibition, and stability of demineralized dentin substrates. A more favorable substrate is created which, in turn, leads to a more stable dentin-adhesive bond. This could lead to more advantageous outcomes in a clinical scenario where a stable bond may result in longevity of the dental restoration.
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Shah, Deepa N. "The Biomimetic Restorative Approach." Dental Update 48, no. 1 (January 1, 2021): 13–20. http://dx.doi.org/10.12968/denu.2021.48.1.13.
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Significant changes in prosthodontic considerations, with a movement away from traditional restorations and an emphasis on preservation of tooth structure, have led to the development of the concept of biomimetics in restorative dentistry. The idea of being able to design restorations, which are able to restore accurately the biomechanical, structural and aesthetic integrity of the biomechanically weakened tooth, has been embraced and adopted by clinicians globally. By combining key prosthodontic principles relating to occlusal design and the control of forces on teeth and restorations, together with minimally invasive adhesive dentistry, we are able to predictably restore the function and aesthetics of damaged dentitions without the need for aggressive tooth structure removal. Advances in dental materials science allowing minimal preparations and restorations that are strong and durable in thin section, as well as advances in adhesive dentistry have meant that the biomimetic restoration of teeth is no longer a novel concept, but something that we should all be applying as conservative and restorative dentists. CPD/Clinical Relevance: This paper describes the rationale and clinical protocols involved in the application of biomimetic restorative dentistry.
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Schiltz-Taing, M., Y. Wang, B. Suh, D. Brown, and L. Chen. "Effect of Tubular Orientation on the Dentin Bond Strength of Acidic Self-etch Adhesives." Operative Dentistry 36, no. 1 (January 1, 2011): 86–91. http://dx.doi.org/10.2341/10-233-lr.
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Clinical Relevance The effectiveness of self-etch adhesive systems is dependent on both the physical properties of the adhesive and the integrity of the adhesive-dentin interface. Most importantly, the integrity of the adhesive-dentin interface is affected by the tubule orientation of the intaglio dentin structure. The initial bond strength and potential durability of the self-etch adhesive interfaces to dentin are significantly affected by both the adhesive pH and occlusally-oriented tubule direction. The clinical relevance to the dentist is that the results reported for bond strengths by both manufacturers and independent researchers should be interpreted and compared based on the orientation of the dentin used for the measurements, particularly for those adhesives that are very acidic (pH lower than 2).
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Marghalani, HY, T. Bakhsh, A. Sadr, and J. Tagami. "Ultramorphological Assessment of Dentin-Resin Interface After Use of Simplified Adhesives." Operative Dentistry 40, no. 1 (January 1, 2015): E28—E39. http://dx.doi.org/10.2341/13-373-l.
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SUMMARY This study assessed dentin-resin interface integration in Class I cavities restored with simplified adhesives by using a focused ion-beam milling (FIB) and transmission electron microscope (TEM). Class I cavities (1.5-mm depth with dentin thickness of ∼0.5 mm, 4-mm length, and 2-mm width) were prepared on freshly extracted, sound human molars. Two all-in-one adhesive systems (Scotchbond/Single Bond Universal [SUD] and Xeno-V+ [X5D]) were used and compared with a two-step etch-and-rinse system (Prime&Bond NT [NTD]). The adhesives were applied according to the manufacturers' guidelines. A universal resin composite (Filtek Z350 XT Universal) was used to restore the cavities in one bulk filling and was irradiated at 550 mW/cm2 for 40 seconds by a quartz-tungsten-halogen light (Optilux 501). After exposure to liquid nitrogen coolant, the specimens were milled to nanoscale thickness by FIB to view and then assess the area of dentin-resin interface by TEM. Unlike the unfilled X5D, a noticeably smooth transition zone at the dentin-resin interface was shown for the SUD and NTD adhesives. The SUD demonstrated an uneven hybrid layer with clearly demineralized collagen bundles. Ultramorphologically, dispersed needlelike apatite crystals were detected within the partially demineralized dentin or the hybrid layer of both compositionally different all-in-one simplified adhesives. Conversely, these crystals were entirely absent from the hybrid layer of the etch-and-rinse NTD adhesive. In the X5D group, a bright band was noted beneath the hybrid layer. The methacryloxydecyl dihydrogen phosphate monomer containing ultramild self-etch adhesive (SUD) was still validated in terms of its capability in dentin adhesion.
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Bermudez, L., M. Wajdowicz, D. Ashcraft-Olmscheid, and K. Vandewalle. "Effect of Selective Etch on the Bond Strength of Composite to Enamel Using a Silorane Adhesive." Operative Dentistry 40, no. 6 (November 1, 2015): E242—E249. http://dx.doi.org/10.2341/14-311-l.
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SUMMARY An improvement in bond strength to enamel has been demonstrated with the use of phosphoric acid prior to bonding with self-etch methacrylate-based adhesive agents. No research has evaluated the effect of phosphoric-acid etching of enamel with a newer self-etch silorane adhesive. The purpose of this study was to evaluate the shear-bond strength of composite to enamel using the self-etch silorane adhesive compared to other self-etching methacrylate-based adhesives, with or without a separate application of phosphoric acid. Bovine incisors were sectioned using a diamond saw and mounted in plastic pipe. The bonding agents were applied to flattened enamel surfaces with or without the application of 35% phosphoric acid. The bonded tooth specimens were inserted beneath a mold, and composite was placed incrementally and light cured. The specimens were stored for 24 hours and six months in water and tested in shear. Data were analyzed with a three-way analysis of variance (ANOVA) to evaluate the effects of surface treatment, adhesive agent, or time on the bond strength of composite to bovine enamel (α=0.05). Significant differences were found between the groups based on surface treatment (p<0.01) or adhesive agent (p<0.01), but not on time (p=0.19), with no significant interactions (p>0.14). Phosphoric-acid etching of bovine enamel significantly increased the bond strength of the self-etch methacrylate and the silorane adhesives. The methacrylate-based adhesives had significantly greater bond strength to enamel than the silorane adhesive.
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Martins, Gislaine Cristine, Alfonso Sánchez-Ayala, Paulo Henrique Perlatti D’Alpino, Abraham Lincoln Calixto, João Carlos Gomes, and Osnara Maria Mongruel Gomes. "Interfacial integrity of bonded restorations with self-etching adhesives: Water storage and thermo-mechanical cycling." European Journal of Dentistry 06, no. 02 (April 2012): 169–77. http://dx.doi.org/10.1055/s-0039-1698947.
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ABSTRACTObjectives: Objective: To evaluate the effect of thermo-mechanical cycling (TMC) on the microleakage (μL) and axial gap width (AG) of Class V bonded restorations in premolars using self-etching adhesive systems. The bond strength of composite restorations to dentin (μTBS) using the same adhesives was also evaluated in third molars after water storage: 24 h and 6 months. The research hypotheses were tested for the results of two self-etching adhesives in comparison when a conventional two-step adhesive was used: (1) the μL and AG would be lower, regardless of TMC; (2) the μTBS of self-etching adhesives would be higher, irrespective of evaluation times.Methods: Sixty Class V composite restorations were made in 30 premolars and bonded with Adper Single Bond 2 (ASB2), AdheSE (ASE), and Adper Prompt L-Pop (APL-P) (n=20). Dentin μL and AG were immediately measured for half of the sample. The other half was evaluated after TMC. Eighteen third molars were also selected and bonded using the same adhesives to test the μTBS to dentin. Specimens were evaluated after 24 h and 6 months of water storage.Results: No differences in μL and AG were found among the groups (P>.05). The μTBS mean values were: ASB2>ASE>APL-P (P<.05); only Adper Single Bond 2 presented a significantly lower μTBS after water storage (P<.05)Conclusions: The bonding approach does not influence the microleakage and interfacial gap extension. Despite the decrease in the mean values, the bond strength to dentin of the conventional, two-step adhesive remains high after 6 months of water storage. (Eur J Dent 2012;6:169-177)
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Kulkarni, Girish, and Vinay K. Mishra. "Enamel Wetness Effects on Microshear Bond Strength of Different Bonding Agents (Adhesive Systems): An in vitro Comparative Evaluation Study." Journal of Contemporary Dental Practice 17, no. 5 (2016): 399–407. http://dx.doi.org/10.5005/jp-journals-10024-1862.
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ABSTRACT Aims The purpose of this study was to compare the effect of enamel wetness on microshear bond strength using different adhesive systems. Objectives To evaluate microshear bond strength of three bonding agents on dry enamel; to evaluate microshear bond strength of three bonding agents on wet enamel; and to compare microshear bond strength of three different bonding agents on dry and wet enamel. Materials and methods Sixty extracted noncarious human premolars were selected for this study. Flat enamel surfaces of approximately 3 mm were obtained by grinding the buccal surfaces of premolars with water-cooled diamond disks. This study evaluated one etch-and-rinse adhesive system (Single Bond 2) and two self-etching adhesive systems (Clearfil SE Bond and Xeno-V). The specimens were divided into two groups (n = 30). Group I (dry) was air-dried for 30 seconds and in group II (wet) surfaces were blotted with absorbent paper to remove excess water. These groups were further divided into six subgroups (n = 10) according to the adhesives used. The resin composite, Filtek Z 250, was bonded to flat enamel surfaces that had been treated with one of the adhesives, following the manufacturer's instructions. After being stored in water at 37°C for 24 hours, bonded specimens were stressed in universal testing machine (Fig. 3) at a crosshead speed of 1 mm/min. The data were evaluated with one-way and two-way analysis of variance (ANOVA), t-test, and Tukey's Multiple Post hoc tests (α = 0.05). Results The two-way ANOVA and Tukey's Multiple Post hoc tests showed significant differences among adhesive systems, but wetness did not influence microshear bond strength (p = 0.1762). The one-way ANOVA and t-test showed that the all-in-one adhesive (Xeno-V) was the only material influenced by the presence of water on the enamel surface. Xeno-V showed significantly higher microshear bond strength when the enamel was kept wet. Single Bond 2 adhesive showed significantly higher microshear bond strength as compared with Xeno-V adhesive but no significant difference when compared with Clearfil SE Bond adhesive in dry enamel. Single Bond 2 adhesive showed no significant difference in microshear bond strength as compared with self-etching adhesive systems (Clearfil SE Bond and Xeno-V), when the enamel was kept wet. Conclusion From the findings of the results, it was concluded that self-etching adhesives were not negatively affected by the presence of water on the enamel surface. Clinical significance The all-in-one adhesive showed different behavior depending on whether the enamel surface was dry or wet. So the enamel surface should not be desiccated, when self-etching adhesives are used. How to cite this article Kulkarni G, Mishra VK. Enamel Wetness Effects on Microshear Bond Strength of Different Bonding Agents (Adhesive Systems): An in vitro Comparative Evaluation Study. J Contemp Dent Pract 2016;17(5):399-407.
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Sartori, Neimar. "Clinical Challenges on Adhesive Dentistry on its 60th Anniversary." Odovtos - International Journal of Dental Sciences, no. 16 (July 15, 2015): 12. http://dx.doi.org/10.15517/ijds.v0i16.20322.
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<div><p>Adhesive dentistry allowed restoring lost tooth structures using Minimally Invasive direct or indirect bonded restorations. Adhesive systems and bonding techniques have been constantly evolving since the introduction of Sevriton Cavity Seal, in 1940 by Oskar Hagger. As we celebrate the 60th anniversary of adhesive dentistry in 2015 the future of the Minimally Invasive Adhesive Dentistry is more promising than ever. A better understanding of long-term resin-dentin bonds interaction is guiding the development of materials and techniques that overcome the limitation of current bonding agents and restorative procedures. A brief statement would be stated.</p><div> </div></div>