Author:
Coelho-de-Souza Fabio Herrmann,Klein-Júnior Celso Afonso,Camargo Junara Cristina,Beskow Tiago,Balestrin Matheus Dalmolin,Demarco Flávio Fernando
Abstract
Abstract
Aim
This double-blind randomized clinical trial compared the performance of posterior composite restorations with and without bevel.
Methods and Materials
Thirteen volunteers requiring at least two posterior Class II restorations were selected. Twenty-nine cavity preparations were performed, comprising 14 without bevel (butt joint) and 15 with marginal beveling. All cavities were restored with a simplified adhesive system (Adper Single Bond, 3M ESPE, St. Paul, Minnesota, USA) and composite resin (Filtek P60, 3M ESPE, St. Paul, Minnesota, USA). A halogen light-curing unit (XL 3000, 3M ESPE, St. Paul, Minnesota, USA) was used throughout the study. Restorations were polished immediately. Analysis was carried out at baseline and after six months by a calibrated evaluator (kappa), according to FDI criteria.
Results
The results were statistically analyzed by Kruskal-Wallis and Mann-Whitney tests (p<0.05). Beveled and nonbeveled restorations performed similarly after six months in relation to fractures and retention, marginal adaptation, postoperative hypersensitivity, recurrence of caries, surface luster, and anatomic form. However, for surface and marginal staining, beveled restorations showed significantly better performance than butt joint restorations (p<0.05).
Conclusion
Restorations performed were acceptable after six months, but beveled restorations showed less marginal staining than nonbeveled restorations.
Clinical Significance
Bevel used in posterior composite restorations decreased the surface and marginal staining, in six-month evaluations.
Citation
Coelho-de-Souza FH, Klein-Júnior CA, Camargo JC, Beskow T, Balestrin MD, Demarco FF. Double-Blind Randomized Clinical Trial of Posterior Composite Restorations with and without Bevel: 6-Month Follow-up. J Contemp Dent Pract [Internet]. 2010 March; 11(2):001-008. Available from: http://www.thejcdp.com/journal/view/ volume11-issue2-souza.
Publisher
Jaypee Brothers Medical Publishing
Reference48 articles.
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2. Hickel R, Manhart J. Longevity of restorations in posterior teeth and reasons for failure. J Adhes Dent. 2001; 3(1):45-64.
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