Effect of dual-cure composite resin as restorative material on marginal adaptation of Class 2 restorations

Article Article scientifique Article Effect of dual-cure composite resin as restorative material on marginal adaptation of Class 2 restorations eng 2013 author Bortolotto Ibarra Tissiana 0000-0002-3231-9097 527527 author Melian Karla 558603 author Krejci Ivo 122923 663-674 10.3290/j.qi.a29751 23757460 0033-6572 https://www.quintessence-publishing.com/deu/de/article/840673/quintessence-international/2013/09/effect-of-dual-cure-composite-resin-as-restorative-material-on-marginal-adaptation-of-class-2-restorations Objective: The present study attempted to find a simple direct adhesive restorative technique for the restoration of Class 2 cavities. Method and materials: A self-etch adhesive system with a dual-cured core buildup composite resin (paste 1 + paste 2) was evaluated in its ability to restore proximo-occlusal cavities with margins located on enamel and dentin. The groups were: A, cavity filling (cf) with paste 1 (light-curing component) by using a layering technique; B, cf by mixing both pastes, bulk insertion, and dual curing; and C, cf by mixing both pastes, bulk insertion, and chemical curing. Two control groups (D, negative, bulk; and E, positive, layering technique) were included by restoring cavities with a classic three-step etch-and-rinse adhesive and a universal restorative composite resin. SEM margin analysis was performed before and after thermomechanical loading in a chewing simulator. Results: Percentages (mean ± SD) of "continuous margins" were improved by applying the material in bulk and letting it self cure (54 ± 6) or dual cure (59 ± 9), and no significant differences were observed between these two groups and the positive control (44 ± 19). Conclusion: The present study showed that the dual-cured composite resin tested has the potential to be used as bulk filling material for Class 2 restorations. Clinical relevance: When used as filling materials, dual-cure composite resins placed in bulk can provide marginal adaptation similar to light-cured composites applied with a complex stratification technique. Composite Resins Dental Caries / therapy Dental Cements Dental Marginal Adaptation Dental Restoration, Permanent / methods Dental Stress Analysis Humans In Vitro Techniques Microscopy, Electron, Scanning Molar Resin Cements Surface Properties Dewey 617.6 205 Division de cariologie et d'endodontie 24P1 false 189 Groupe Krejci Ivo (médecine dentaire) 240 Quintessence international 44 9 cced54f9-3b67-4cb4-a5e1-5f08dad86413 Article (Published version) Restricted 7573.pdf 309084 application/pdf restrictedAccess Faculté de médecine / Section de médecine dentaire / Département de médecine dentaire préventive et de premier recours / Division de cariologie et d'endodontie

Title	Published in	Year	Views	Downloads

Effect of dual-cure composite resin as restorative material on marginal adaptation of Class 2 restorations	Quintessence international	2013	567	0
L'influence de différents types de polymérisation sur l'adaptation marginale des restaurations en composites de classe II		2011	851	520

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Melian, Karla