Articoli di riviste: "Dental bonding"

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Adnan, S. "Dental materials: Bonding agents bite". British Dental Journal 217, n. 3 (agosto 2014): 108. http://dx.doi.org/10.1038/sj.bdj.2014.659.

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Manuja, N., R. Nagpal e IK Pandit. "Dental Adhesion". Journal of Clinical Pediatric Dentistry 36, n. 3 (1 aprile 2012): 223–34. http://dx.doi.org/10.17796/jcpd.36.3.68805rl1r037m063.

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Contemporary dental adhesives show favorable immediate results in terms of bonding effectiveness. However, the durability of resin-dentin bonds is their major problem. It appears that simplification of adhesive techniques is rather detrimental to the long term stability of resin-tooth interface. The hydrostatic pulpal pressure, the dentinal fluid flow and the increased dentinal wetness in vital dentin can affect the intimate interaction of certain dentin adhesives with dentinal tissue. Bond degradation occurs via water sorption, hydrolysis of ester linkages of methacrylate resins, and activation of endogenous dentin matrix metalloproteinases. The three-step etch-and-rinse adhesives still remain the gold standard in terms of durability. This review discusses the fundamental process of adhesion to enamel and dentin with different adhesive techniques, factors affecting the long term bonding performance of modern adhesives and addresses the current perspectives for improving bond durability.

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Park, Minsu, Sungwon Ju, Roscoe Linstadt, Jinsoo Ahn e Kollbe Ahn. "Dental Adhesion Enhancement on Zirconia Inspired by Mussel’s Priming Strategy Using Catechol". Coatings 8, n. 9 (24 agosto 2018): 298. http://dx.doi.org/10.3390/coatings8090298.

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Zirconia has recently become one of the most popular dental materials in prosthodontics being used in crowns, bridges, and implants. However, weak bonding strength of dental adhesives and resins to zirconia surface has been a grand challenge in dentistry, thus finding a better adhesion to zirconia is urgently required. Marine sessile organisms such as mussels use a unique priming strategy to produce a strong bonding to wet mineral surfaces; one of the distinctive chemical features in the mussel’s adhesive primer proteins is high catechol contents among others. In this study, we pursued a bioinspired adhesion strategy, using a synthetic catechol primer applied to dental zirconia surfaces to study the effect of catecholic priming to shear bond strength. Catechol priming provided a statistically significant enhancement (p < 0.05) in shear bond strength compared to the bonding strength without priming, and relatively stronger bonding than commercially available zirconia priming techniques. This new bioinspired dental priming approach can be an excellent addition to the practitioner’s toolkit to improve dental bonding to zirconia.

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Cacciafesta, V. "Dental hard tissues and bonding (2005)". European Journal of Orthodontics 28, n. 3 (17 ottobre 2005): 306. http://dx.doi.org/10.1093/ejo/cjl018.

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Steinke, R., P. Newcomer, S. Komarneni e R. Roy. "Dental cements: Investigation of chemical bonding". Materials Research Bulletin 23, n. 1 (gennaio 1988): 13–22. http://dx.doi.org/10.1016/0025-5408(88)90219-x.

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Liu, Honghua, Jiahua Ni, Luhai Wu e Guo He. "Diffusion bonding of mismatch dental alloys". Journal of Biomedical Materials Research Part B: Applied Biomaterials 9999B (2009): NA. http://dx.doi.org/10.1002/jbm.b.31556.

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Azeem, Muhammad, Sabir Ali, Ambreen Shaukat e Arfan ul Haq. "TRADITIONAL LECTURE". Professional Medical Journal 25, n. 06 (10 giugno 2018): 937–40. http://dx.doi.org/10.29309/tpmj/2018.25.06.284.

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Introduction: Use of audiovisual aids is not new to improve dental teachingefficiency. Objective: To compare the effectiveness of traditional lecture versus video fororthodontic training of dental interns. Study design: Prospective, Randomized trial. Setting:Orthodontic Dental Section, Faisalabad Medical University. Period: 15.7.2017 to 5.2.2018.Materials & Methods: Two groups of 15 dental interns were selected randomly at OrthodonticDental Section, Faisalabad Medical University. One group was presented with traditional lecturewhile other group was shown a video. The learning objective of both was to train the dentalinterns to bond molar tubes onto extracted human lower first molars. Dental interns bondedmolar tubes and results were assessed by an experienced blinded orthodontist. Resultswere analyzed for accuracy of molar tube bonding. Results: Results showed that there wasinsignificant difference between the two groups for accuracy of molar tube bonding ontoextracted human lower first molars (P value=0.3401). Conclusion: Traditional lecture and videowere equally effective for orthodontic training of dental interns for bonding of molar tubes.

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Wirwicki, Mateusz, e Tomasz Topoliński. "Shear Strength Testing of Bonded Joints of Dental Materials". Solid State Phenomena 224 (novembre 2014): 198–203. http://dx.doi.org/10.4028/www.scientific.net/ssp.224.198.

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Zirconium dioxide is a material more and more used by technicians and dental surgeons due to its chemical composition and excellent mechanical strength. It features high biocompatibility and may be used even in 6-unit fixed dental bridges. Adhesive bonding is one of the methods used in dental applications. New generation bonding agents featuring high mechanical strength are widely available on the market. This article presents the equipment designed and manufactured to European Standards for bonded joint testing as well as specimen geometry and bonding method. Monotonic and fatigue tests of bonded joints were performed, the results were presented and Weibull analysis was performed.

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Arossi, G. A., R. R. Dihl, M. Lehmann, K. S. Cunha, M. L. Reguly e H. H. R. de Andrade. "In vivo genotoxicity of dental bonding agents". Mutagenesis 24, n. 2 (25 novembre 2008): 169–72. http://dx.doi.org/10.1093/mutage/gen066.

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Manso, Adriana P., e Ricardo M. Carvalho. "Dental Cements for Luting and Bonding Restorations". Dental Clinics of North America 61, n. 4 (ottobre 2017): 821–34. http://dx.doi.org/10.1016/j.cden.2017.06.006.

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Uo, Motohiro, Göran Sjoren, Anders Sundh, Fumio Watari, Maud Bergman e Ulf Lerner. "Cytotoxicity and bonding property of dental ceramics". Dental Materials 19, n. 6 (settembre 2003): 487–92. http://dx.doi.org/10.1016/s0109-5641(02)00094-5.

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Bal, Sourav Chandra Bidyasagar, Radha Prasanna Dalai, Sashikant Sethy, Sukhvinder Oberoi e Amit Mehta. "Implant & Dental Plaque: A Close Bonding". Indian Journal of Public Health Research & Development 10, n. 11 (2019): 309. http://dx.doi.org/10.5958/0976-5506.2019.03480.6.

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Vojvodic, Denis, Vjekoslav Jerolimov, Domagoj Zabarovic e Ante Loncar. "Bond Strengths of Two Dental Bonding Systems". Military Medicine 165, n. 7 (1 luglio 2000): 560–65. http://dx.doi.org/10.1093/milmed/165.7.560.

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Pioch, T., S. Stotz, H. J. Staehle e H. Duschner. "Applications of Confocal Laser Scanning Microscopy to Dental Bonding". Advances in Dental Research 11, n. 4 (novembre 1997): 453–61. http://dx.doi.org/10.1177/08959374970110041201.

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The introduction of confocal laser scanning microscopy (CLSM) has provided a valuable new technique for the visualization of bonding structures such as a hybrid layer in dentin (Watson, 1989, 1991), In the case of seven commercially-available dentin bonding systems, it could be demonstrated that the CLSM renders considerably more detailed information than the SEM because of its nondestructive nature and because of the possibility of a distinction between components of bonding agents. With most of the bonding systems, measurements of the thickness of the hybrid layer could be carried out when the primer component was labeled with rhodamine B. It was found that this thickness is significantly increased by increases in etching time and only slightly decreased by increases in the drying time of the dentin and of the primer. When rhodamine B was used for dye penetration tests on four different dentin bonding systems, a leakage within the demineralized zone in the dentin was found in each of the specimens. This structure appears similar to that which Sano et al. (1995) called "nanoleakage". The amount of nanoleakage could not be measured by this method. In the case of enamel or ceramic bonding, a penetration zone was found which corresponded to the etching patterns found in enamel and ceramics, respectively. We conclude that CLSM can offer a wealth of new information about bonding morphology and, therefore, should be used in addition to conventional methods so that the maximum information can be obtained.

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Fleming, Garry JP. "Advances in Dental Materials". Primary Dental Journal 3, n. 2 (giugno 2014): 54–61. http://dx.doi.org/10.1308/205016814812143950.

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The dental market is replete with new restorative materials marketed on the basis of novel technological advances in materials chemistry, bonding capability or reduced operator time and/or technique sensitivity. This paper aims to consider advances in current materials, with an emphasis on their role in supporting contemporary clinical practice.

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Yoon, S. I., Yong Keun Lee, Yeon Ung Kim, Min Chul Kim, Kyoung Nam Kim, S. O. Kim e H. J. Choi. "The Effects of Hydroxyapatite on Bonding Strength between Dental Luting Cement and Human Teeth". Key Engineering Materials 284-286 (aprile 2005): 953–56. http://dx.doi.org/10.4028/www.scientific.net/kem.284-286.953.

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This study aimed to investigate the effects of hydroxyapatite on bonding strength between dental luting cement and human teeth. In the previous study, bonelike forming ability by mixing hydroxyapatite with several bone cements was reported in a protein-free acellular simulated body fluid with ion concentrations nearly equal to those of the human blood plasma. Therefore in this experiment, we assumed that if bonelike apatite layer could form between dental luting cement and human teeth, the bonding strength between the two would improve. In addition, we expected the HA mixed dental luting cement to improve the physical properties. Fuji I glass ionomer and Relyx™ glass ionomer cement were the selected dental luting cements and the film thickness, setting time and compressive strength were measured mixing various concentrations of hydroxyapatite. Glass ionomer cement with the most superior physical properties(Fuji I ; 20% hydroxyapatite, Relyx™ ; 15% hydroxyapatite) was immersed in the simulated body fluid for three weeks and the surface was observed under SEM after measuring the bonding strength. As the concentration of HA increased, the film thickness of hydroxyapatite-glass ionomer cement decreased, the setting time increased, and the compressive strength increased. The most noteworthy results were that bonding strength increased, and that bonelike apatite formed on the tooth surface when observed under SEM.

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Yu, F., M. L. Luo, R. C. Xu, L. Huang, W. Zhou, J. Li, F. R. Tay, L. N. Niu e J. H. Chen. "Evaluation of a Collagen-Reactive Monomer with Advanced Bonding Durability". Journal of Dental Research 99, n. 7 (16 aprile 2020): 813–19. http://dx.doi.org/10.1177/0022034520913540.

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This study evaluated the use of a new collagen-reactive monomer (CRM), isocyanate-terminated urethane methacrylate precursor, which has covalent affinity to dental collagen, in the formation of dentin-resin bonds and compared it with 2 other dental adhesives. Dentin specimens were bonded with either the CRM-based adhesive (CBA), One-Step (OS; Bisco, Inc.), or a negative adhesive (NA) control and subjected to 24-h storage in water, thermocycling to simulate 1-y clinical function, or a matrix metalloproteinase–mediated aging process. We tested the microtensile bond strength (µTBS), characterized the bonding interface with an atomic force microscope, conducted micro-Raman analysis, and performed leakage tests and in situ zymography. CBA and OS exhibited comparable bonding strength after 24 h ( P > 0.05); however, there was a sharp decrease in µTBS after aging for all except CBA ( P < 0.001). Raman spectra results indicated increased collagen crosslinking and chemical reaction between the adhesive and collagen in the CBA group. CBA achieved high-quality hybridization with collagen, improving mechanical properties and integrity, and decreased the enzyme-mediated degradation of the bonding interface by inhibiting collagenolytic activity. With the promising bonding durability of coapplied CBA, CRM may be the first dental adhesive to provide strong and long-lasting resin-dental collagen bonding without the additional conditioning step. The use of CBA results in high-quality hybrid layers that protect the resin-dentin interface from harmful biological and chemical activities commonly occurring in the oral environment.

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Mok, Zi Hong, Gordon Proctor e Maya Thanou. "Emerging nanomaterials for dental treatments". Emerging Topics in Life Sciences 4, n. 6 (17 novembre 2020): 613–25. http://dx.doi.org/10.1042/etls20200195.

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The emergence of nanomaterials for dental treatments is encouraged by the nanotopography of the tooth structure, together with the promising benefits of nanomedicine. The use of nanoparticles in dentistry, also termed as ‘nanodentistry', has manifested in applications for remineralisation, antimicrobial activity, local anaesthesia, anti-inflammation, osteoconductivity and stem cell differentiation. Besides the applications on dental tissues, nanoparticles have been used to enhance the mechanical properties of dental composites, improving their bonding and anchorage and reducing friction. The small particle size allows for enhanced permeation into deeper lesions, and reduction in porosities of dental composites for higher mechanical strength. The large surface area to volume ratio allows for enhanced bioactivity such as bonding and integration, and more intense action towards microorganisms. Controlled release of encapsulated bioactive molecules such as drugs and growth factors enables them to be delivered more precisely, with site-targeted delivery for localised treatments. These properties have benefitted across multiple fields within dentistry, including periodontology and endodontics and reengineering of dental prosthetics and braces. This review summarises the current literature on the emerging field of nanomaterials for dental treatments.

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Bhandi, Shilpa H., Mohamed Moustafa Awad, H. Alqahtani, A. Al-Mudahi, MS Murayshed e A. Alrahlah. "Adhesive Bonding to Computer-aided Design/Computer-aided Manufacturing Esthetic Dental Materials: An Overview". Journal of Contemporary Dental Practice 18, n. 7 (2017): 622–26. http://dx.doi.org/10.5005/jp-journals-10024-2095.

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ABSTRACT Aim To review the adhesive bonding to different computer-aided design/computer-aided manufacturing (CAD/CAM) esthetic restorative materials. Background The use of CAD/CAM esthetic restorative materials has gained popularity in recent years. Several CAD/ CAM esthetic restorative materials are commercially available. Adhesive bonding is a major determinant of success of CAD/ CAM restorations. Review result An account of the currently available bonding strategies are discussed with their rationale in various CAD/ CAM materials. Conclusion Different surface treatment methods as well as adhesion promoters can be used to achieve reliable bonding of CAD/CAM restorative materials. Selection of bonding strategy to such material is determined based on its composition. Further evidence is required to evaluate the effect of new surface treatment methods, such as nonthermal atmospheric plasma and self-etching ceramic primer on bonding to different dental ceramics. Clinical significance An understanding of the currently available bonding strategies to CA/CAM materials can help the clinician to select the most indicated system for each category of materials. How to cite this article Awad MM, Alqahtani H, Al-Mudahi A, Murayshed MS, Alrahlah A, Bhandi SH. Adhesive Bonding to Computer-aided Design/Computer-aided Manufacturing Esthetic Dental Materials: An Overview. J Contemp Dent Pract 2017;18(7):622-626.

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Kakar, Surbhi, e Rohit Nagar. "Dentin Bonding Agents-II Recent Trials". World Journal of Dentistry 3, n. 1 (2012): 115–18. http://dx.doi.org/10.5005/jp-journals-10015-1140.

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ABSTRACT Most modern adhesive systems are superior to their predecessors, especially in terms of retention that is no longer the main cause of premature clinical failure. Recent adhesives also appear less sensitive to substrate and other clinical covariables. Various recent trials have been conducted on various issues like the antibacterial properties of self-ethching dental adhesive system (which are effective against bacteria that invade through microleakage at the resin dentin interphase), shear bond strength of composite resin to dentin, using newer dentin bonding agents, nanoleakege expression in bonded dentin and next generation bonding agents. This paper gives the insight to the various recent trials on dental adhesive systems. How to cite this article Kakar S, Goswami M, Nagar R. Dentin Bonding Agents-II Recent Trials. World J Dent 2012;3(1): 115-118.

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Mine, Tsutomu, Kazuo Motomura e Hidekazu Takahashi. "Bonding Strength between Universal Alloy and Dental Porcelain." Nihon Hotetsu Shika Gakkai Zasshi 42, n. 3 (1998): 510–19. http://dx.doi.org/10.2186/jjps.42.510.

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Tomsia, Antoni P., e Joseph A. Pask. "Bonding of Dental Glass to Nickel-Chromium Alloys". Journal of the American Ceramic Society 69, n. 10 (ottobre 1986): C—239—C—240. http://dx.doi.org/10.1111/j.1151-2916.1986.tb07348.x.

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Yoshihara, K., Y. Yoshida, S. Hayakawa, N. Nagaoka, S. Kamenoue, T. Okihara, T. Ogawa, M. Nakamura, A. Osaka e B. Van Meerbeek. "Novel Fluoro-carbon Functional Monomer for Dental Bonding". Journal of Dental Research 93, n. 2 (3 dicembre 2013): 189–94. http://dx.doi.org/10.1177/0022034513514447.

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Zhang, Jie, Wenjie Hu, Tijana Stijacic, Kwok-Hung Chung, Tingkai Li e Zhijian Shen. "Bonding of novel self-glazed zirconia dental ceramics". Advances in Applied Ceramics 118, n. 1-2 (26 aprile 2018): 37–45. http://dx.doi.org/10.1080/17436753.2018.1463935.

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Fischer, J. "Ceramic bonding to a dental gold–titanium alloy". Biomaterials 23, n. 5 (marzo 2002): 1303–11. http://dx.doi.org/10.1016/s0142-9612(01)00248-4.

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Aguilar-Mendoza, Jose A., Juan I. Rosales-Leal, Miguel A. Rodríguez-Valverde, Santiago González-López e Miguel A. Cabrerizo-Vílchez. "Wettability and bonding of self-etching dental adhesives". Dental Materials 24, n. 7 (luglio 2008): 994–1000. http://dx.doi.org/10.1016/j.dental.2007.11.013.

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Chan, Kai Chiu, e Edward J. Swift. "Marginal seal of new-generation dental bonding agents". Journal of Prosthetic Dentistry 72, n. 4 (ottobre 1994): 420–23. http://dx.doi.org/10.1016/0022-3913(94)90563-0.

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Ahsan, Aisha, e Martin Ashley. "Hypersensitivity to dental composites and resin-bonding agents". Dental Update 43, n. 9 (2 novembre 2016): 836–42. http://dx.doi.org/10.12968/denu.2016.43.9.836.

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FUKUSHIMA, Tadao, e Takashi HORIBE. "Bonding of Succinoxy Alkylene Methacrylates to Dental Alloys". Dental Materials Journal 6, n. 1 (1987): 83–89. http://dx.doi.org/10.4012/dmj.6.83.

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FUKUSHIMA, Tadao, Jack L. FERRACANE, Takashi HORIBE e Toru OKABE. "Bonding of Various Succinoxy Methacrylates to Dental Alloys". Dental Materials Journal 7, n. 1 (1988): 1–12. http://dx.doi.org/10.4012/dmj.7.1.

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Kern, Matthias. "Resin Bonding to Oxide Ceramics for Dental Restorations". Journal of Adhesion Science and Technology 23, n. 7-8 (gennaio 2009): 1097–111. http://dx.doi.org/10.1163/156856109x432721.

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Bona, Alvaro Della. "Important Aspects of Bonding Resin to Dental Ceramics". Journal of Adhesion Science and Technology 23, n. 7-8 (gennaio 2009): 1163–76. http://dx.doi.org/10.1163/156856109x440146.

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Uusalo, Elina K., Veijo P. Lassila e Antti U. Yli-Urpo. "Bonding of dental porcelain to ceramic-metal alloys". Journal of Prosthetic Dentistry 57, n. 1 (gennaio 1987): 26–29. http://dx.doi.org/10.1016/0022-3913(87)90111-9.

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Hashiguchi, Makiko, Hideo Sato, Y. Nishi, Seiji Ban, Kristoffer Krnel, A. Kocjan e Tomaž Kosmač. "Effect of Surface Treatments on Bonding Strength of Zirconia to Dental Cements". Key Engineering Materials 396-398 (ottobre 2008): 575–78. http://dx.doi.org/10.4028/www.scientific.net/kem.396-398.575.

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The aim of this study was to investigate the effect of surface treatments on bonding strength of two kinds of zirconia to two kinds of dental cements. After thermal cycling, the shear bonding strength of both zirconia with alumina coating increased in both cements. The shear bonding strength of both zirconia with sandblasting decrease in Fuji plus after thermal cycling (p<0.05). There was no significant difference between NANOZR and Y-TZP (p>0.05). The bonding strengths of NANOZR with the alumina coating were higher than those with sandblasting after thermal-cycling (p<0.05).

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Mas Ayu, Hassan, M. M. Mustaqieem, Rosdi Daud, A. Shah, Andril Arafat e M. S. Dambatta. "Effect of Polylactic Acid/Hydroxyapatite Coating on Dental Implant Using Finite Element Method". Materials Science Forum 995 (giugno 2020): 103–8. http://dx.doi.org/10.4028/www.scientific.net/msf.995.103.

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Finite element analysis (FEA) has been proven to be a precise and applicable method for evaluating dental implant systems. This is because FEA allows for measurement of the stress distribution inside of the bone and various dental implant designs via simulation analysis during mastication where such measurements are impossible to perform in-vitro or in-vivo experiment. That is why the relationship between implant design and load distribution at the implant bone interface is a crucial issue to understand. This research study focuses on a static simulation and bonding strength for PLA/HA coating on V thread design of dental implant using three-dimensional finite element. The average masticatory muscle that involves in human biting such as X, Y and Z direction will be used to simulate force with load condition of 17.1N, 114.6N and 23.4N respectively. Based on result obtained, the coated dental implant model is more compatible than uncoated model due to lower maximum stress which is reduce about 16%. The coated model also shows lower deformation and higher bonding strength. Outcomes from this research provide a better understanding of stress distribution characteristics that would be useful in order to improve design of dental implant thread and evaluation of the PLA/HA bonding strength applied.

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He, Xi, Shiyang Yu, Huimin Wang, Zilu Tian, Jiahui Zhang, Ying Zhao, Haihuan Gong, Zuosen Shi, Zhanchen Cui e Song Zhu. "A novel resin cement to improve bonding interface durability". RSC Advances 12, n. 37 (2022): 24288–300. http://dx.doi.org/10.1039/d2ra04446c.

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Elshereksi, Nidal W., Mariyam J. Ghazali, Andanastuti Muchtar e Che H. Azhari. "Aspects of Titanate Coupling Agents and their Application in Dental Polymer Composites: A Review". Advanced Materials Research 1134 (dicembre 2015): 96–102. http://dx.doi.org/10.4028/www.scientific.net/amr.1134.96.

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Silanes are extensively used in dental composites to facilitate chemical bonding among the phases of composites. Despite their popularity, the dental application of silanes as coupling agents is still restricted by a few limitations, which include their hydrolytic instability in aqueous oral environment and their inefficiency to bond with nonsilica fillers. Titanate coupling agents can provide good interphase bonding, improve mechanical properties, enhance filler homogenous dispersibility, and modify the rheological behavior of composites. Moreover, moisture resistance can be improved by adding a small amount of titanates. This review aims to evaluate the efficiency of using titanate coupling agents in dental polymer composites and denture bases, particularly when titanium-based fillers are impregnated.

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Mijoska, Aneta, e Mirjana Popovska. "Evaluation of zirconia bonding to veneering porcelain". Macedonian Pharmaceutical Bulletin 60, n. 02 (2014): 51–56. http://dx.doi.org/10.33320/maced.pharm.bull.2014.60.02.005.

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Zirconium dioxide as core ceramic material for dental crowns and bridges, possess high strength, chemical stability and superior aesthetics after veneering. Veneering ceramic is considered to be the weakest part of all-ceramic restorations. The adhesion between the core and veneering porcelain is based on the manner in which the connection occurs in metal-ceramic structures. Standard procedures for connecting zirconia to hard dental tissues and veneering materials do not achieve the required strength of bonding. The aim of the paper is to investigate different surface treatments of the zirconium dioxide ceramic core and find the best, for achieving highest adhesive bonding values to veneering porcelain. The study was primarily designed to investigate the bonding strength of the veneering porcelain to zirconia with in vitro Macro shear bond strength test. The specimens with different surface treatment of the zirconia were divided in five groups of twelve according to the treatment of zirconium surface and results showed highest bonding values for specimens treated with Rocatec system.

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Farronato, Marco, Davide Farronato, Francesco Inchingolo, Laura Grassi, Valentina Lanteri e Cinzia Maspero. "Evaluation of Dental Surface after De-Bonding Orthodontic Bracket Bonded with a Novel Fluorescent Composite: In Vitro Comparative Study". Applied Sciences 11, n. 14 (9 luglio 2021): 6354. http://dx.doi.org/10.3390/app11146354.

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The use of a new fluorescent composite can reduce some of the problems related to procedures of de-bonding orthodontic bracket (enamel damage, dentine lesions, and composite residuals). The aim of the presented study was to compare the effect of fluorescent and conventional non-fluorescent composite on dental surface and composite remnants by in vitro de-bonding tests. De-bonding of florescent composite (DFC) and the de-bonding of standard composite (DSC) were performed by operators on an in vitro sample of 48 teeth under UV light (360–370 nm min 20 mW/cm2). Modified ARI (Adhesive Remnant Index), scored under 5.0×/235 magnification, was used for evaluation of dental surface after the procedure, and the duration required for de-bonding was measured. Significant differences in ARI between the two groups were observed (Pearson two-tailed p = 0.006 1.4 ± 0.1 95% C.I.), and the average duration of de-bonding was 38 s (DFC) and 77 s (DSC) per tooth, respectively (Mann–Whitney test p = 0.015; 57.7 ± 19.9 95% C.I.). The use of fluorescent composite could significantly improve the quality of de-bonding by reducing the quantity of composite residuals and visible enamel damage, while reducing time needed for successful procedure performance.

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Phillips, R. W. "Bonding Agents and Adhesives". Advances in Dental Research 2, n. 1 (agosto 1988): 150–54. http://dx.doi.org/10.1177/08959374880020010801.

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Development of molecules which will adhere to tooth structure is a high-priority area of dental research. Although enamel and dentin present formidable obstacles to adhesive mechanisms, there is substantial progress in the formulation of agents which are already altering certain procedures, such as the conservative restoration of the erosion lesion. These materials are evaluated with particular attention to dentin bond agents and the glass-ionomer system. The latter is of particular interest due to its proved biocompatibility, fluoride leach, and bonding capability. The exact status of dentin bond agents based on phosphonates remains controversial, and the possible reasons for the divergent data are discussed.

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Sato, Hideo, Seiji Ban, Masahiro Nawa, Y. Suehiro e H. Nakanishi. "Effect of Surface Treatments on Bonding Strength of Dental Ceramics to Resin Cements". Key Engineering Materials 361-363 (novembre 2007): 829–32. http://dx.doi.org/10.4028/www.scientific.net/kem.361-363.829.

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The aim of this study was to investigate the effect of surface treatments on bonding strength of two kinds of zirconia to three kinds of resin cements. After thermal cycling, the shear bonding strength of both zirconia decreased in all the resin cements. The bonding strengths of two resin cements in which primer contains silane dramatically decreased after the thermal-cycling (p<0.01). Although the surface roughness of both zirconia sandblasted by 125-%m SiC was quite larger than that by 70-%m alumina (p<0.05), there were no significant differences in the bonding strength of the resin cement to both zirconia sandblasted by 70-%m Al2O3 and 125-%m SiC (p>0.05).

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42

Bertoz, André Pinheiro de Magalhães, Derly Tescaro Narcizo de Oliveira, Carla Maria Melleiro Gimenez, André Luiz Fraga Briso, Francisco Antonio Bertoz e Eduardo César Almada Santos. "Effect of moisture on dental enamel in the interaction of two orthodontic bonding systems". Dental Press Journal of Orthodontics 18, n. 4 (agosto 2013): 89–97. http://dx.doi.org/10.1590/s2176-94512013000400013.

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OBJECTIVE: The purpose of this study was to assess by means of scanning electron microscopy (SEM) the remaining adhesive interface after debonding orthodontic attachments bonded to bovine teeth with the use of hydrophilic and hydrophobic primers under different dental substrate moisture conditions. MATERIAL AND METHODS: Twenty mandibular incisors were divided into four groups (n=5). In Group I, bracket bonding was performed with Transbond MIP hydrophilic primer and Transbond XT adhesive paste applied to moist substrate, and in Group II a bonding system comprising Transbond XT hydrophobic primer and adhesive paste was applied to moist substrate. Brackets were bonded to the specimens in Groups III and IV using the same adhesive systems, but on dry dental enamel. The images were qualitatively assessed by SEM. RESULTS: The absence of moisture in etched enamel enabled better interaction between bonding materials and the adamantine structure. The hydrophobic primer achieved the worst micromechanical interlocking results when applied to a moist dental structure, whereas the hydrophilic system proved versatile, yielding acceptable results in moist conditions and excellent interaction in the absence of contamination. CONCLUSION: The authors assert that the best condition for the application of primers to dental enamel occurs in the absence of moisture.

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Al-Zordk, Walid, Alaa Saudi, Abdelraheem Abdelkader, Mansoura Taher e Mohamed Ghazy. "Fracture Resistance and Failure Mode of Mandibular Molar Restored by Occlusal Veneer: Effect of Material Type and Dental Bonding Surface". Materials 14, n. 21 (28 ottobre 2021): 6476. http://dx.doi.org/10.3390/ma14216476.

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This study assesses the effect of the material type (lithium disilicate, zirconia, and polymer-infiltrated ceramic) and dental bonding substrates (dentin, dentin with intra-coronal cavity, and dentin with composite filling) on the fracture resistance and failure mode of molars restored by occlusal veneers. Methods: Ninety occlusal veneers, fabricated from either lithium disilicate, zirconia, or polymer-infiltrated ceramic, were adhesively bonded to teeth prepared with either dentin, dentin with intra-coronal cavity, or dentin with composite filling. All specimens were thermally aged (5000 cycles), then load cycled (120,000 cycles). Each specimen was subjected to a compressive load through fracture, then was examined (×20) to identify the fracture type. Data were statistically analyzed. Results: Material type and dental substrate had no significant effect on the fracture resistance of adhesively retained occlusal veneer restorations. For each material, no significant differences were found between veneers bonded to dentin, dentin with intra-coronal cavity, and dentin with composite filling. Additionally, within each bonding substrate, there were no significant differences between lithium disilicate, zirconia, and polymer-infiltrated ceramic veneers. The adhesive failure was recorded mainly with zirconia occlusal veneer restorations. Conclusions: Considering the fracture results, lithium disilicate, zirconia, and polymer-infiltrated ceramic occlusal veneers perform well whatever the type of dental bonding surface. When the dental bonding surface varies, different occlusal veneer materials should be considered. Occlusal veneers bonded to dentin, dentin with composite filling, or dentin with an intra-coronal cavity exhibited a fracture resistance exceeding the average human masticatory forces in the molar area.

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Lin, Shih-Chieh, Wei-Chun Lin, Tai-Chia Hu, Min Yan e Cheng-Ming Tang. "Evaluation of the Bonding Strength between Various Dental Zirconia Models and Human Teeth for Dental Posts through In Vitro Aging Tests". Coatings 11, n. 9 (25 agosto 2021): 1017. http://dx.doi.org/10.3390/coatings11091017.

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In dentistry, root canal treatment reduces support of the tooth, making it necessary to insert a cylindrical body into the treated tooth to strengthen the crown. In the past, metal or fiberglass was often used. However, metal is too different in color from teeth, so the esthetics are poor, and fiberglass is not as strong as metal. Therefore, an alternative is zirconia, which has the characteristics of high light transmittance, esthetics, good biocompatibility, and high breaking strength. The surface morphology and composition of zirconia ceramics are the key to their bond strength with teeth. Therefore, in this study, the surface characteristics of different brands of zirconia commonly used in clinical practice were evaluated in terms of their surface morphology and surface elements. The surface was modified by sandblasting, and its effect on the bonding strength was discussed. Finally, the stability of the material was evaluated through artificial aging. The results showed that the surface roughness of the zirconia specimens increased after sandblasting, whereas the surface microhardness decreased. The shear test results showed that the 3D shape of the zirconia surface could help improve the bonding strength. The bonding strength of DeguDent increased the most after sandblasting. After 20,000 cycles of aging treatment, the shear strength of each specimen decreased. Field emission scanning electron microscopy results showed that the adhesive remained intact on the surface of zirconia, indicating that adhesion failure occurred between the adhesive and the teeth. This confirms that sandblasting can improve the bonding strength of zirconia. Based on the results obtained, it was concluded that the surface roughness of zirconia is the main factor affecting the bond strength.

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Ayar, Muhammet Kerim. "A review of ethanol wet-bonding: Principles and techniques". European Journal of Dentistry 10, n. 01 (gennaio 2016): 155–59. http://dx.doi.org/10.4103/1305-7456.175687.

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ABSTRACTConventional water wet-bonding technique has been advocated by many scientists, but the excess water will induce suboptimal polymerization of dental adhesives, phase separation, and nanoleakage, which will influence the longevity of resin-dentin interfaces. Recent studies have put forward a new concept, ethanol wet-bonding. This technique can increase in dentin bond durability. This review focuses on the principles of ethanol wet-bonding, its surface treatment methods.

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46

Nawrocka, Agnieszka, Ireneusz Piwonski, Salvatore Sauro, Annalisa Porcelli, Louis Hardan e Monika Lukomska-Szymanska. "Traditional Microscopic Techniques Employed in Dental Adhesion Research—Applications and Protocols of Specimen Preparation". Biosensors 11, n. 11 (21 ottobre 2021): 408. http://dx.doi.org/10.3390/bios11110408.

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Microscopy is a traditional method to perform ex vivo/in vitro dental research. Contemporary microscopic techniques offer the opportunity to observe dental tissues and materials up to nanoscale level. The aim of this paper was to perform a literature review on four microscopic methods, which are widely employed in dental studies concerning the evaluation of resin-dental adhesive interfaces—confocal laser scanning microscopy (CLSM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and atomic force microscopy (AFM). The literature search was performed using digital databases: PubMed, Web of Science and Scopus. On the basis of key words relevant to the topic and established eligibility criteria, finally 84 papers were included in the review. Presented microscopic techniques differ in their principle of operation and require specific protocols for specimen preparation. With regard to adhesion studies, microscopy assists in the description of several elements involved in adhesive bonding, as well as in the assessment of the condition of enamel surface and the most appropriate etching procedures. There are several factors determining the quality of the interaction between the substrates which could be recognized and a potential for further implementation of microscopic techniques in dental research could be recognized, especially when these techniques are used simultaneously or combined with spectroscopic methods. Through such microscopy techniques it is possible to provide clinically relevant conclusions and recommendations, which can be easily introduced for enamel-safe bonding and bonding protocols, as well as optimal pretreatments in dentine preparation.

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Daróczi, Lajos, C. Hegedűs, V. Kökényesi e Dezső L. Beke. "Interfacial Structures Developed by Firing Metal-Ceramic Dental Systems". Materials Science Forum 517 (giugno 2006): 153–58. http://dx.doi.org/10.4028/www.scientific.net/msf.517.153.

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Metal-ceramic systems play very important role in the prosthetic dentistry. The most widely used metallic alloys are the Ni-Cr, Co-Cr, Au-based alloys and Ti. The bonding strength between the metal base and the ceramic covering layer can be very different in different systems and is strongly affected by the firing conditions as well. For the further improvement of the bonding properties the detailed knowledge of the microstructure of the metal–ceramic interlayer is essential. In this work our results, obtained by scanning and transmission electron microscopy on systems of commercial alloys and corresponding porcelains will be reviewed.

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48

Izham, Andi, e Elza Ibrahim Auerkari. "EFEK GENOTOKSISITAS PADA BAHAN DENTAL ADHESIF". Indonesian Journal of Legal and Forensic Sciences (IJLFS) 11, n. 2 (10 dicembre 2021): 67. http://dx.doi.org/10.24843/ijlfs.2021.v11.i02.p02.

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The use of dental adhesive materials in dental practice everyday has raised questions about the biological effects on tissues. Adhesive system has attracted considerable research interest in recent years, dental adhesive will succeed depends on the chemical adhesive, on the appropriate clinical management of materials and the knowledge of morphological changes in dental tissue caused by different bonding procedures. Some studies suggest that the dental adhesive material Genotoxicity have any effect on the network. Genotoxic effects may significantly reduce the potential for tissue repair or cause the development of neoplasia in the long term.

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El-Shamy, Hassan, e Hani Nassar. "Bonding system choice and practices among senior dental students". Journal of International Society of Preventive and Community Dentistry 7, n. 9 (2017): 143. http://dx.doi.org/10.4103/jispcd.jispcd_285_17.

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Alnatheer, Mohammad, Ali Alqerban e Hisham Alhazmi. "Graphene oxide-modified dental adhesive for bonding orthodontic brackets". International Journal of Adhesion and Adhesives 110 (ottobre 2021): 102928. http://dx.doi.org/10.1016/j.ijadhadh.2021.102928.

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