Academic literature on the topic 'Orthodontics and demineralization'
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Journal articles on the topic "Orthodontics and demineralization"
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Zakrzewski, Wojciech, Maciej Dobrzynski, Wojciech Dobrzynski, Anna Zawadzka-Knefel, Mateusz Janecki, Karolina Kurek, Adam Lubojanski, Maria Szymonowicz, Zbigniew Rybak, and Rafal J. Wiglusz. "Nanomaterials Application in Orthodontics." Nanomaterials 11, no. 2 (January 28, 2021): 337. http://dx.doi.org/10.3390/nano11020337.
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Nanotechnology has gained importance in recent years due to its ability to enhance material properties, including antimicrobial characteristics. Nanotechnology is applicable in various aspects of orthodontics. This scientific work focuses on the concept of nanotechnology and its applications in the field of orthodontics, including, among others, enhancement of antimicrobial characteristics of orthodontic resins, leading to reduction of enamel demineralization or control of friction force during orthodontic movement. The latter one enables effective orthodontic treatment while using less force. Emphasis is put on antimicrobial and mechanical characteristics of nanomaterials during orthodontic treatment. The manuscript sums up the current knowledge about nanomaterials’ influence on orthodontic appliances.
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Zabokova-Bilbilova, Efka, Lidija Popovska, Biljana Kapusevska, and Emilija Stefanovska. "White Spot Lesions: Prevention and Management During the Orthodontic Treatment." PRILOZI 35, no. 2 (December 1, 2014): 161–68. http://dx.doi.org/10.2478/prilozi-2014-0021.
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Abstract The formation of white spot lesions, or enamel demineralization, around fixed orthodontic attachments is a common complication during and following fixed orthodontic treatment, which marks the result of a successfully completed case. This article is a contemporary review of the risk factors and preventive methods of these orthodontics scars. Preventive programmes must be emphasized to all orthodontic patients. The responsibility of an orthodontist is to minimize the risk of the patient having decalcification as a consequence of orthodontic treatment by educating and motivating the patients for excellent oral hygiene practice. Prophylaxis with topical fluoride application should be implemented: high-fluoride toothpastes, fluoride mouthwashes, gels and varnishes during and after the orthodontic treatment, especially for patients at high risk of caries.
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Abufarwa, Moufida, Amal Noureldin, Phillip M. Campbell, and Peter H. Buschang. "The longevity of casein phosphopeptide–amorphous calcium phosphate fluoride varnish's preventative effects: Assessment of white spot lesion formation." Angle Orthodontist 89, no. 1 (September 12, 2018): 10–15. http://dx.doi.org/10.2319/021718-127.1.
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ABSTRACT Objectives: To test how long casein phosphopeptide–amorphous calcium phosphate (CPP-ACP) fluoride varnish prevents enamel demineralization in vitro. Materials and Methods: Human molars and premolars were sectioned buccolingually and randomly assigned to two groups. Standardized pretreatment images of enamel surfaces were obtained using FluoreCam. The control group received no treatment, and the experimental group received an application of CPP-ACP fluoride varnish. Over simulated periods of 2, 4, 8, and 12 weeks, specimens were placed in a toothbrushing simulator, thermocycled, subjected to 9 days of pH cycling, and imaged with FluoreCam. Samples were sectioned and polished for polarized light microscope (PLM) evaluation. Results: There were statistically significant time (P < .001) and varnish (P < .001) effects on area, intensity, and impact of enamel demineralization. The control group showed significant and progressive demineralization over the 12 weeks (P < .001). The experimental group revealed no significant demineralization during the first 4 weeks (P > .05) and significant (P < .001) increases thereafter. Experimental demineralization after 12 weeks was comparable to 2-week demineralization in the controls, with significant between-group differences (P < .001) in enamel demineralization at all time points. PLM of the control and experimental groups revealed lesion depths of 90 ± 34 μm and 37 ± 9 μm, respectively. Conclusions: Within the limitations of this in vitro study, CPP-ACP fluoride varnish prevents enamel demineralization for at least 4 weeks and limits demineralization up to 12 weeks.
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Galuscan, Atena, Daniela Jumanca, Angela C. Podariu, Adina Dumitrache, Ramona A. Popovici, Laura Cristina Rusu, Teodora Ștefănescu, and Anca Tudor. "The Assessment of Enamel Demineralisation by Fluorescent Light in Fixed Orthodontics." Key Engineering Materials 638 (March 2015): 262–69. http://dx.doi.org/10.4028/www.scientific.net/kem.638.262.
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<p class="TTPAbstract">The brackets collating technique and microbial factors increase the risk for enamel demineralization in patients with fixed orthodontic appliance. The aim of this study was to determine the risk level of enamel demineralization in fixed orthodontic device bearers. The enamel demineralization was assessed in 187 patients by measuring dental structure by fluorescent light. The measurements were performed with the DIAGNOdent Pen 2190 (KaVo, Biberach, Germany). Except canines which remain in the risk 1 category, without enamel demineralization, the other investigated teeth may have a medium demineralization degree The values recorded with fluorescent light on canine enamel showed low and insignificant differences (p>0.05) as a result of fixed orthodontic appliances, classifying these teeth as healthy teeth with enamel integrity or with low enamel demineralization. The molars presented significantly increased values in the study group as compared to the control group (p<0.05). 6 years molars had a marked predisposition to demineralization and caries as compared to frontal group teeth, after fluorescent light measurements. The measurements include these teeth in the medium to high risk for dental caries. The DIAGNOdent, due to its capacity to determine the demineralization degree of dental surfaces, may be used to monitor patients and to prevent the occurrence of dental caries during fixed orthodontic treatments.<o:p></o:p></p>
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Miller, Cara C., Girvan Burnside, Susan M. Higham, and Norah L. Flannigan. "Quantitative Light-induced Fluorescence-Digital as an oral hygiene evaluation tool to assess plaque accumulation and enamel demineralization in orthodontics." Angle Orthodontist 86, no. 6 (March 23, 2016): 991–97. http://dx.doi.org/10.2319/092415-648.1.
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ABSTRACT Objective: To assess the use of Quantitative Light-induced Fluorescence-Digital as an oral hygiene evaluation tool during orthodontic treatment. Materials and Methods: In this prospective, randomized clinical trial, 33 patients undergoing fixed orthodontic appliance treatment were randomly allocated to receive oral hygiene reinforcement at four consecutive appointments using either white light (WL) or Quantitative Light-induced Fluorescence-Digital (QLF) images, taken with a device, as visual aids. Oral hygiene was recorded assessing the QLF images for demineralization, by fluorescence loss (ΔF), and plaque coverage (ΔR30). A debriefing questionnaire ascertained patient perspectives. Results: There were no significant differences in demineralization (P = .56) or plaque accumulation (P = .82) between the WL and QLF groups from T0 to T4. There was no significant reduction in demineralization, ΔF, in the WL, or the QLF group from T0–T4 (P > .05); however, there was a significant reduction in ΔR30 plaque scores (P < .05). All the participants found being shown the images helpful, with 100% of the QLF group reflecting that it would be useful to have oral hygiene reinforcement for the full duration of treatment compared with 81% of the WL group (OR 2.3; P < .05). Conclusions: Quantitative Light-induced Fluorescence-Digital can be used to detect and monitor demineralization and plaque during orthodontics. Oral hygiene reinforcement at consecutive appointments using WL or QLF images as visual aids is effective in reducing plaque coverage. In terms of clinical benefits, QLF and WL images are of similar effectiveness; however, patients preferred the QLF images.
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Tan, Ayten, and Serpil Çokakoğlu. "Effects of adhesive flash-free brackets on enamel demineralization and periodontal status." Angle Orthodontist 90, no. 3 (February 11, 2020): 339–46. http://dx.doi.org/10.2319/80819-518.1.
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ABSTRACT Objectives To evaluate the effects of adhesive precoated (APC) flash-free brackets on enamel demineralization and periodontal status in patients during fixed orthodontic treatment. Materials and Methods Thirty patients, age 12 to 18 years, who had Angle Class I or Class II malocclusion with mild to moderate crowding in the permanent dentition were selected for this study. APC flash-free and conventional ceramic brackets were bonded for a split-mouth study design. The quadrant allocation was randomized. Demineralization records were obtained immediately after bonding (T0), 1 month after bonding (T1), and 6 months after bonding (T2). Clinical periodontal measurements, including gingival index, plaque index, and bleeding upon probing, were obtained before bonding (T0) and at the same time points (T1 and T2). Data were analyzed using Mann-Whitney U and Friedman tests to compare parameters between groups and times. Results Demineralization values decreased on most sides of the brackets for both groups between T0 and T1. In the conventional group, there was significantly higher demineralization on more sides compared with flash-free brackets between T1 and T2. With one exception, the decreased values were found in the incisal/occlusal sides of all brackets at T2. All periodontal parameters showed significant increases after 6 months of treatment in both groups. Intergroup comparison showed no significant differences in demineralization or periodontal measurements at any of the time points. Conclusions The effects of APC flash-free and conventional brackets on enamel demineralization and periodontal health did not differ from each other.
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Martins, Luís Roberto Marcondes, Mario Vedovello Filho, Suzy H. A. Martins, Heloísa C. Valdrighi, Silvia Amélia S. Vedovello, Mayury Kuramae, Adriana Simoni Lucato, and Eloisa Marcantonio Boeck. "Evaluation of Bonded Orthodontics Brackets Using Different Adhesive Systems after a Cariogenic Challenge." Journal of Contemporary Dental Practice 11, no. 1 (January 2010): 41–48. http://dx.doi.org/10.5005/jcdp-11-1-41.
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Abstract Aim The aims of this study were to evaluate the prevention of enamel demineralization and the shear bond strength (SBS) of orthodontic brackets bonded with fluoride and no fluoride conventional and selfetching adhesives and to analyze the characteristics of enamel near the bond area using a polarized light microscope (PLM) following demineralization and remineralization cycling (Des Re). Methods and Materials Fifty bovine incisors were selected and divided into five groups according to the adhesive system used during the bonding process: G1, Transbond™ XT Adhesive; G2, Single Bond 2 Adhesive; G3, Optibond Solo Plus; G4, Clearfil SE Bond; and G5, Clearfil Protect Bond. Transbond™ XT was used to fix the brackets to the teeth in all groups. After bonding, the groups were separated into cycling and control subgroups. The specimens were submitted to SBS testing and evaluated under a PLM. The results were submitted to ANOVA and Tukey's post hoc tests (p<.05). Results There were no significant differences for SBS after Des-Re cycling. The Clearfil Protect Bond showed the SBS to be statistically lower than the other adhesives used for the control groups. After a cariogenic challenge, the Single Bond adhesive showed an SBS significantly lower than Transbond XT. The Des-Re cycling increased the enamel demineralization induced after the cariogenic challenge. Conclusions The cariogenic challenge did not reduce the SBS. Optibond Solo Plus and Transbond™ XT adhesives presented the highest SBS while Clearfil Protect Bond had the lowest. The PLM showed that the cariogenic challenge increased the enamel demineralization for all adhesives evaluated, independent of the presence of fluoride. Clinical Significance An alternative material with the ability to prevent enamel demineralization should be used in orthodontic patients due to the higher accumulation of plaque around orthodontic brackets. Citation Filho MV, Martins SHA, Valdrighi HC, Vedovello SAS, Kuramae M, Lucato AS, Boeck EM, Martins LRM. Evaluation of Bonded Orthodontics Brackets Using Different Adhesive Systems after a Cariogenic Challenge. J Contemp Dent Pract [Internet]. 2010 Jan; 11(1):041-048. Available from: http://www.thejcdp.com/journal/ view/volume11-issue1-filho.
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Brusnitsyna, E. V., T. V. Zakirov, M. M. Saipeeva, E. S. Ioshchenko, and S. A. Sheshenina. "Hypersensitivity of teeth after orthodontic treatment in adolescence." Pediatric dentistry and dental profilaxis 20, no. 3 (October 10, 2020): 217–22. http://dx.doi.org/10.33925/1683-3031-2020-20-3-217-222.
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Relevance. In adolescence, focal demineralization after orthodontic treatment is highly prevalent. This, in turn, leads to symptomatic hypersensitivity in the absence of other predisposing factors (recessions, exposure of cervical dentin, increased abrasion, etc.). Reviewed the mechanism for reducing hypersensitivity and remineralizing of calcium-sodium phosphosilicate, also the effectiveness of using a prophylactic toothpaste with this component in adolescents.Materials and methods. A single-center, non-comparative open study was conducted to evaluate the effectiveness of the Sensodyne Restoration and Protection toothpaste at the Department of Pediatric Dentistry and Orthodontics, USMU for 4 weeks. 22 adolescents aged 14-16 years with focal demineralization of enamel in the stain stage after completion of orthodontic treatment participated in the study.Results. The use of toothpaste with calcium-sodium phosphosilicate after a month of use leads to a decrease in the hygiene index by 23.38%, a decrease in hypersensitivity according to the results of the Schiff air index by 56.94% (p ≤ 0.05), and a tendency to an increase in the level of mineralization and a decrease in areas of white spot lesions.Conclusions. Toothpaste with calcium-sodium phosphosilicate has a cleansing effect and reduces sensitivity and can be recommended for adolescents with focal demineralization against the background of orthodontic treatment.
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Benson, P. E., A. A. Shah, D. T. Millett, F. Dyer, N. Parkin, and R. S. Vine. "Fluorides, orthodontics and demineralization: a systematic review." Journal of Orthodontics 32, no. 2 (June 2005): 102–14. http://dx.doi.org/10.1179/146531205225021033.
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Yetkiner, Enver, Florian Just Wegehaupt, Rengin Attin, and Thomas Attin. "Caries infiltrant combined with conventional adhesives for sealing sound enamel in vitro." Angle Orthodontist 83, no. 5 (January 31, 2013): 858–63. http://dx.doi.org/10.2319/102312-827.1.
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ABSTRACT Objective: To test the null hypothesis that combining low-viscosity caries infiltrant with conventional adhesive resins would not improve sealing of sound enamel against demineralization in vitro. Materials and Methods: Bovine enamel discs (N = 60) with diameter of 3 mm were randomly assigned to six groups (n = 10). The discs were etched with 37% phosphoric acid for 30 seconds and treated with resins of different monomer content forming the following groups: (1) Icon (DMG), (2) Transbond XT Primer (3M ESPE), (3) Heliobond (Ivoclar Vivadent), (4) Icon + Transbond XT Primer, and (5) Icon + Heliobond. Untreated etched samples served as the negative control. Specimens were subjected to demineralization by immersion in hydrochloric acid (pH 2.6) for 80 hours. Calcium dissolution into the acid was assessed by colorimetric analysis using Arsenazo III method at 16-hour intervals. Groups presenting high protection against demineralization were subjected to further acidic challenge for 15 days with calcium measurements repeated at 24-hour intervals. Data were analyzed by Kruskal-Wallis test and Mann-Whitney U-test. Results: Untreated specimens showed the highest amount of demineralization. Icon and Transbond XT primer decreased the mineral loss significantly compared to the control. Heliobond performed significantly better than both Icon and Transbond XT primer. Combination of Icon both with Transbond XT primer or Heliobond served as the best protective measures and maintained the protective effect for the additional 15-day acidic challenge. Conclusions: Within the limitations of this in vitro study, it could be concluded that the use of low-viscosity caries infiltrant prior to application of the tested conventional adhesives increases their protective effect against demineralization.
Dissertations / Theses on the topic "Orthodontics and demineralization"
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Poole, Morris. "Efficacy of Orthodontic Bonding Agents in Preventing Demineralization Around Brackets." VCU Scholars Compass, 2010. http://scholarscompass.vcu.edu/etd/2178.
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Enamel demineralization is a concern in orthodontic patients with poor oral hygiene. To curtail this problem, amorphous calcium phosphate (ACP) containing adhesives have been developed. The purpose of this in vitro study was to evaluate the cariostatic potential of an ACP containing orthodontic bonding agent adjacent to brackets. Sixty human molars were randomly distributed into: ACP adhesive, resin modified glass ionomer cement (RMGIC), and conventional composite resin groups (N=20 each). Brackets were bonded following the manufacturer’s instructions. Tooth enamel through a 2mm window around the brackets was cycled in demineralization (6 hrs) and remineralization (18 hrs) solutions. After 14 days, teeth embedded in resin and were sectioned. Knoop indentations were performed to determine enamel hardness. There were no statistically significant differences between the control and experimental groups. However, both Fuji Ortho LC (RMGIC), and Aegis Ortho (ACP) showed a trend toward a reduction in demineralization. In addition, it was also shown that the initial acid etching of the enamel significantly reduces enamel hardness.
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Ricci, Alyssa G. "THE EFFICACY OF A FLUORIDE-CONTAINING ORTHODONTIC PRIMER IN PREVENTING DEMINERALIZATION." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/5789.
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Purpose: To evaluate the efficacy of a fluoride-containing orthodontic primer in preventing demineralization adjacent to brackets and compare the quality of enamel on tooth surfaces that received interproximal reduction (IPR).
Methods: Patients at the VCU Orthodontic clinic who consented to orthodontic treatment involving extraction of at least 2 premolars were recruited to this pilot clinical study. Brackets were bonded to premolars using one of two primers, fluoride-containing experimental or control. IPR was also performed, and the experimental primer was applied to randomly selected teeth. Extracted teeth were analyzed visually for the presence of white spot lesions (WSLs). Micro-CT analyses were also performed to evaluate demineralization and measure the lesions.
Results: A total of 18 teeth from 6 subjects were included in the following analyses. Based on micro-CT imaging, lesions were found on 89% of teeth treated with the experimental primer compared to 67% with the control primer, but this difference was not statistically significant (p=0.5765). There was also no significant difference between the depths of the lesions (p=1.00), handedness (p=0.5765), hygiene (p=0.7804), or time in the mouth (p=0.5601). According to visual examination, there was no significant difference in the incidence of WSLs between the two groups (89% and 89%; p=1.00) Also, there was no association with treatment (p=1.00), handedness (p=1.00), hygiene (p=0.1373), or time in the mouth (p=0.2987). No differences were noted on the microstructural characteristics of enamel at the IPR sites.
Conclusion: Fluoride-containing primers do not seem to provide any additional benefit over conventional non-fluoride primers in orthodontic patients.
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Jham, Andre Correia. "The efficacy of Novamin powered technology Oravive and TopexRenew, Crest and Prevident 5000 Plus in preventing enamel demineralization and white spot lesion formation." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/522.
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Objective: The purpose of this study was to compare in vitro the effectiveness of Novamin powered technology Oravive and TopexRenew, with Crest and Colgate's PreviDent 5000 Plus in decreasing demineralization and preventing white spot lesion formation on extracted human teeth.
Materials and Methods: Eighty-two extracted non-carious human third molar teeth without observable white-spot lesions, decalcification, or dental fluorosis were used for this in vitro study. The teeth in the study were suspended in their respective treatment slurry and cycled through remineralization and demineralization solutions for ten continuous days. Following the cycling protocol the teeth were sectioned using the hard tissue microtome producing three to five sections per tooth. The sections were photographed under a polarized light microscope and subsequently measured using Image Pro Plus computer software.
Results: The post-hoc Bonferroni multiple comparison test indicated that the mean lesion depths observed in Control and Oravive groups were significantly greater than the other three treatment groups, while the mean lesion depth observed in Prevident was significantly lower than those in Renew and Crest. Moreover, no significant difference was found between Control and Oravive or between Renew and Crest.
Conclusions: Renew (5% novamin; 5000 ppm F) performed at the same level as Crest (1100 ppm F) and inferior than Prevident 5000 Plus (5000 ppm F). Novamin by itself (Oravive, 5% Novamin) performed at the same level as the non-fluoridated Control group. Prevident 5000 Plus (5000 ppm F) was the most effective product in this study for the prevention of enamel demineralization and white spot lesion formation.
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Shipley, Thomas S. "The effect of argon laser irradiation on reducing enamel decalcification during orthodontic treatment an in vitro and in vivo study /." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3883.
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Thesis (M.S.)--West Virginia University, 2005.Title from document title page. Document formatted into pages; contains x, 243 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 128-139).
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Pennella, Daniel. "The Effects of a Fluoride Releasing Orthodontic Primer on Demineralization around Brackets: An in-vivo study." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/2432.
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The purpose of this study was to investigate the effects of a fluoride releasing orthodontic primer on demineralization adjacent to brackets. Twenty-two patients were recruited for this study. One premolar was randomly chosen as the experimental tooth, the contralateral tooth was the control. Teeth were visually analyzed for white spot lesions (WSLs). Knoop microhardness was used to determine hardness. Visual examination results showed no significant difference in the number of WSLs observed between Opal Seal and Transbond XT over the duration of this study. Solid conclusions could not be drawn from the results of microhardness testing. Therefore, it cannot be concluded that there is a difference in enamel hardness between Opal Seal and Transbond XT. However, prior to 90 days, teeth showed a significant difference in WSLs. Suggesting a protective effect of Opal Seal that diminished with time. Future studies are necessary to determine the clinical performance of this product.
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Clark, Tanner Jay. "The efficacy of ProSeal™, SeLECT Defense™, OrthoCoat™, and Biscover LV™ resin sealants on the prevention of enamel demineralization and white spot lesion formation." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/479.
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The purpose of this study was to compare, in vitro, the effectiveness of the resin sealants ProSeal™, OrthoCoat™, SeLECT Defense™, and Biscover LV™ on the inhibition of enamel demineralization after being subjected to extensive mechanical toothbrush abrasion. Seventy-five extracted third molars were divided into five groups - control, ProSeal, SeLECT Defense, OrthoCoat, and Biscover LV.
All of the teeth, with the exception of the control group, weretreated with one of the four sealant materials per the manufacturer's instructions. Teeth were mounted in an acrylic ring and stabilized with a vinyl polysiloxane impression material. The mounted teeth were placed in the Prototech Toothbrush Wear Simulator and a soft-bristled toothbrush was placed over the buccal surface of the tooth.
Each tooth was subjected to 15,000 horizontal strokes at a rate of 120 strokes/minute and each toothbrush received a constant force of 280 g to stimulate normal manual brushing, simulating about 2 years of manual toothbrushing. Teeth from all groups were painted with a thin layer of acid-resistant varnish (nail polish), leaving a 1 mm window of exposed enamel on the buccal surface. They were then placed into a constantly circulating, room-temperature standard tenCate Demineralizing Solution (pH=4.4) consisting of 2.20mM Ca2+, 2.20 mMPO4 3-, 0.05mM Acetic acid and 0.025ppm F- for 96 hours. Three sections were made of each tooth and the sections were examined under a polarized light microscope. Descriptive statistics were conducted with the study data. The one-way ANOVA with post-hoc Ryan-Einot-Gabriel-Welsch multiple range test was used to determine whether there was a significant difference in lesion depth between sealant materials. The following conclusions were made:
All materials tested provided a significant reduction in enamel demineralization as compared to untreated controls. SeLECT Defense and OrthoCoat both resulted in a 64% decrease in lesion depth. Biscover LV provided a 67% decrease in lesion depth. Pro Seal provided significantly more protection (82% reduction) than the other three sealant materials: SeLECT Defense, OrthoCoat, and Biscover LV. Pro Seal, SeLECT Defense, OrthoCoat, and Biscover LV, should all be considered effective preventive treatments that do not require patient compliance for success. Pending further clinical investigation, Pro Seal should still be considered the gold standard for preventing enamel demineralization in orthodontic patients.
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Dorfman, Jake. "CEMENT COMPOSITION EFFECTS ON ENAMEL DEMINERALIZATION ADJACENT TO ORTHODONTIC BRACKETS: AN IN VITRO STUDY USING THE CANARY SYSTEM." Master's thesis, Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/458512.
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Oral BiologyM.S.
Incipient caries lesions or white spot lesions are one of the most common clinical problems resulting from orthodontic treatment with fixed appliances. Literature has shown that infrared photothermal radiometry and modulated luminescence (PTR-LUM), used by The Canary System for caries detection, is capable of monitoring artificially created carious lesions and their evolution during demineralization. Recently, a water-based calcium aluminate glass ionomer luting cement, Ceramir, has shown bioactive surface apatite formation that may influence local remineralization. This in vitro study’s objective was to evaluate effects of bioactive cement on enamel demineralization around orthodontic brackets compared to composite resin cement. A sample of 32 caries-free extracted human teeth was collected under an IRB-exempt protocol. Orthodontic brackets were cemented to each tooth with either Transbond XT or Ceramir. A 3x3 mm window adjacent to the bracket was created with acid-resistant varnish f
Temple University--Theses
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Silva, Junior Roberto Soares da. "Avaliação da ação preventiva de adesivo nanoparticulado na formação de lesões de mancha branca em ortodontia /." Araraquara, 2019. http://hdl.handle.net/11449/181880.
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Orientador: Lídia Parsekian MartinsResumo: Objetivo: avaliar a ação de adesivo nanoparticulado com capacidade de liberação de flúor na prevenção de lesões de mancha branca (LMB) em pacientes sob tratamento ortodôntico. Materiais e Métodos: em 37 indivíduos, submetidos a tratamento ortodôntico, foram aplicados um adesivo ortodôntico convencional (Transbond XT) e um adesivo nanoparticulado com a capacidade de liberar flúor (Opal Seal), em um design split mouth. Antes da colagem e ao fim do tratamento, os pacientes foram submetidos a exame clínico e fotografias intrabucais. Durante o período de avaliação também foram realizadas avaliações mensais da quantidade de adesivo presente, visto por luz UV-A. Para comparação dos adesivos utilizamos uma ANOVA Multifatorial, sendo o score ao final do tratamento como variável dependente. No estudo da concordância entre os métodos de avaliação, foi realizado o Coeficiente de Correlação Ordinal de Spearman e a Análise de Concordância de Bland-Altman. Para o tempo de permanência do adesivo Opal Seal, utilizamos uma curva de sobrevivência, e na comparação do índice de descolagem utilizamos também uma curva de sobrevivência e a Análise de Sobrevivência de Kaplan-Meier. Resultados: Não houve diferença entre os adesivos testados, qualquer que fosse o método de avaliação utilizado, de forma que a formação de manchas brancas não difere entre os adesivos (p=0,581). Não houve um dente que fosse mais afetado por LMB em relação aos demais dentes avaliados (p=0,861). Não houve diferença entre os ... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Objective: Evaluate the action of nanoparticulate adhesive with fluoride release capacity in the prevention of white spot lesions (WSL) in patients under orthodontic treatment. Materials and methods: In 37 individuals undergoing orthodontic treatment, a conventional orthodontic adhesive (Transbond XT) and a nanoparticulate adhesive with the ability to release fluoride (Opal Seal) were applied in a split mouth design. Before bonding and at the end of treatment, patients were submitted to clinical examination and intraoral photographs. During the evaluation period, monthly assessments of the amount of adhesive present were also performed, as seen by UV-A light. To compare the adhesives, we used multifactorial ANOVA, with score at the end of treatment as dependent variable. In the study of the concordance between the evaluation methods, the ordinal Spearman correlation coefficient and the Bland-Altman concordance analysis were performed. For the remain time of the Opal Seal adhesive, a survival curve was used, and in the comparison of the debonding index, the survival curve and the Kaplan-Meier survival analysis were also used. Results: There was no difference between the tested adhesives, whatever the evaluation method used, so that the formation of WSL does not differ between the adhesives (p= 0.581). There was no tooth that was more affected by WSL in relation to the other teeth evaluated (p= 0.861). There was no difference between the methods of evaluation (P = 0,581) and th... (Complete abstract click electronic access below)
Doutor
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Clark, Kristin Dumboski. "The efficacy of 37% phosphoric acid + Mi Paste Plus on remineralization of enamel white spot lesions." Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/938.
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Purpose: This in vitro study evaluated the effectiveness of using a 37% phosphoric acid liquid etchant along with MI Paste Plus™ powered technology compared to using MI Paste Plus™ alone or to an artificially created saliva solution in decreasing the demineralization and enhancing the remineralization of artificial carious lesions created on extracted human teeth. The teeth were analyzed and compared using polarized light microscopy, quantitative light-induced fluorescence, and digital photography.
Materials and Methods: One hundred three recently extracted non-carious human third molar teeth without observable white-spot lesions, decalcification, or dental fluorosis were selected for this twelve day study and randomly divided into four treatment groups as follows:
Group 1 (Control) - Artificial saliva solution (27 teeth)
Group 2 (MIP) - MI Paste Plus™ application for 30 minutes daily for 12 days (26 teeth)
Group 3 (15MIP) - 15 second etch every third day and MI Paste Plus™ application for 30 minutes daily for 12 days (25 teeth)
Group 4 (1MIP) - 1 minute etch on day one ONLY and application of MI Paste Plus™ for 30 minutes daily for 12 days (25 teeth).
Results: Results of one<–>way ANOVA revealed there was a significant effect for the type of treatment on the lesion depth (p = 0.0027). The post-hoc Tukey-Kramer's test indicated there was a statistically significant difference between the two groups (15MIP and 1MIP) that incorporated an acid etch in combination with MI Paste Plus™ and the group with exposure to MI Paste Plus™ alone (MIP). In addition, results of one<–>way ANOVA showed that there was no statistically significant effect for type of treatment on the change in fluorescence (p = 0.1417) or the change in density (p = 0.1934).
Conclusions: The results of the present study revealed there was a significant effect for the type of treatment on the lesion depth (p = 0.0027). However, the only significant difference found was between the two groups (15MIP and 1MIP) that incorporated an acid etch in combination with MI Paste Plus™ and the group with exposure to MI Paste Plus™ alone (MIP). Thus, daily applications of MI Paste Plus™, with or without an acid etch, did not produce a statistically significant difference in mean lesion depth when compared to the control (artificial saliva group). In addition, the results of the present study showed that there was no statistically significant effect for type of treatment on the change in fluorescence (p = 0.1417) or the change in density (p = 0.1934). Further research is needed to evaluate MI Paste Plus™ capability in prevention of demineralization and/or enhancement of remineralization by conducting randomized clinical trials.
10
Allen, James Henry. "A comparison of the enamel demineralization inhibition and shear bond strength of two orthodontic resins." Thesis, Birmingham, Ala. : University of Alabama at Birmingham, 2009. https://www.mhsl.uab.edu/dt/2009m/allen.pdf.
Full textBook chapters on the topic "Orthodontics and demineralization"
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Benson, Philip E. "Prevention of Demineralization During Orthodontic Treatment with Fluoride-Containing Materials or Casein Phosphopeptide-Amorphous Calcium Phosphate." In Evidence-Based Orthodontics, 149–65. West Sussex, UK: John Wiley & Sons, Ltd., 2013. http://dx.doi.org/10.1002/9781118688489.ch10.
Full text
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Nadide Akay, Elif. "Preventive Methods and Treatments of White Spot Lesions in Orthodontics." In Oral Health Care [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.102064.
Full textAbstract:
The aim of orthodontic treatment is to improve the esthetics of the teeth and face, to provide a beautiful smile, and an adequate and permanent chewing function. In individuals with insufficient oral hygiene, demineralization begins in the mouth with a very low pH value, and as a result, white spot lesions formed by decalcification of the enamel layer can be seen during orthodontic treatment. Since lesions are the first stage of caries formation, it is possible to stop caries development at this stage. Many methods, such as improving oral hygiene, regulating diets, fluoridated agents, laser, casein phosphopeptide, and microabrasion, are used in the treatment of white spot lesions. Preventive methods are of great importance in terms of preventing future tooth loss and reducing the treatment process. The purpose of this article is to manage white spot lesions in orthodontic treatment and to examine risk factors and preventive methods based on the latest evidence.
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Parthasarathy, Dr Revathy, Dr Yashini Thanikachalam, Dr Yashini Thanikachalam, Dr Kalaiarasi Murugesan, and Dr Srividhya Srinivasan. "WHITE SPOT LESION – A REVIEW." In Emerging Trends in Oral Health Sciences and Dentistry. Technoarete Publishers, 2022. http://dx.doi.org/10.36647/etohsd/2022.01.b1.ch029.
Full textAbstract:
Modern dentistry aims at preserving the tooth structure in a non- invasive manner. The transition from G V black’s “extension for prevention” to minimal intervention methods paved path for diagnosis of caries during the initial stages of demineralization. Initial caries lesion otherwise called as “white spot lesion” is a subsurface enamel demineralization occurring on the smooth surface of the teeth. “White spot lesion” – coined by FEJERSKOV et al. as – “the first sign of carious lesion that is visible to naked eye”. The white or chalky appearance of the white spot lesion is due to the difference in the scattering of light over the demineralized enamel. Apart from pre-disposing factors like microorganisms, diet and host factors, long term deposition of “undisturbed” plaque helps in the initiation of white spot lesion. These initial carious lesions appear after 4 weeks of demineralization The superficial layer of the enamel remains intact due to the protective action of the salivary proteins, Statherin. Since these salivary proteins are macromolecules, they will not penetrate into the subsurface layer of the enamel and thus its protective action remains confined to the superficial layers. Due to the continuous diffusion of acids, there will be decalcification in the subsurface layer of the enamel. The shape of the white spot lesion depends on the dissemination of the biofilm and enamel prism’s direction. Patients with fixed orthodontic appliance are prone for white spot lesions because of the difficulty in removal of plaque and more areas of “undisturbed” plaque retention. After the removal of appliance, remineralization of the lesion occurs, resulting in hard and shiny appearance of the surface area making the subsurface lesion less visible.
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Kidd, Edwina, and Ole Fejerskov. "Caries control for the patients with active lesions." In Essentials of Dental Caries. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780198738268.003.0009.
Full textAbstract:
Chapter 4 described caries control measures for everybody, a whole population approach. The emphasis was on oral hygiene, regularly disturbing the biofilm with fluoride toothpaste. The mode of action of fluoride was discussed in some detail to show that this therapeutic agent acts topically to interfere with the deand remineralizing processes and delaying lesion development. The relevance of minimizing sugar intake was discussed. The metabolism of sugar, by microorganisms in the biofilm, creates the acidic environment for demineralization. However, what more should be done for those presenting with active lesions? This chapter will consider how to find out why these patients are developing lesions. The chapter will then explore further oral hygiene measures that might be useful. It will question how fluoride might be boosted and their diet modified. Specific groups, such as babies and young children, those with erupting teeth, patients undergoing orthodontic treatment, and patients with dry mouths will be individually discussed. Finally, a section will discuss the difficulties of advising carers on helping those who can no longer care for themselves, either though illness, disability, old age, or dementia. The caries activity of any patient, child, or adult, is assessed at the first visit of the patient by noting how many lesions judged as active are present (both cavitated and non-cavitated) and where they are located (see Chapter 3). Please note, this assessment is mainly based on clinical assessment. Some companies produce a battery of chairside salivary tests, such as microbiological counts of specific microorganisms, but these are not needed. If the patient is coming for a regular check-up, a history of recent caries activity is available (number of lesions and fillings over the last 1–3 years). This information is most valuable. A yearly increment of one or more lesions detected clinically, would indicate a high rate of lesion formation and progression. Once a dentist has assessed an individual patient’s caries activity as high, an attempt should be made to identify the relevant risk factors for this patient. It is possible to interfere with and modify many of these factors, and thus arrest ongoing active lesions, or slow down the disease activity and diminish the rate of progression.