A randomized double-blind clinical trial of posterior composite restorations with or without bevel: 1-year follow-up
J. appl. oral sci
;
20(2): 174-179, Mar.-Apr. 2012. tab
Article
in English
| LILACS
| ID: lil-626417
ABSTRACT
OBJECTIVE:
This randomized double-blind clinical trial compared the performance of posterior composite restorations with or without bevel, after 1-year follow-up. MATERIAL ANDMETHODS:
Thirteen volunteers requiring at least two posterior composite restorations were selected. Twenty-nine cavities were performed, comprising 14 without bevel (butt joint) and 15 with bevel preparation of the enamel cavosurface angle. All cavities were restored with simplified adhesive system (Adper Single Bond) and composite resin (Filtek P60). A halogen light curing unit was used through the study. Restorations were polished immediately. Analysis was carried out at baseline, after 6 months and after 1 year by a calibrated evaluator (Kappa), according to the FDI criteria. Data were statistically analyzed by Mann-Whitney test (p <0.05).RESULTS:
Beveled and non-beveled cavities performed similarly after 1 year follow-up, regarding to fractures and retention, marginal adaptation, postoperative hypersensitivity, recurrence of caries, surface luster and anatomic form. However, for surface and marginal staining, beveled cavities showed significantly better performance (p<0.05) than butt joint restorations.CONCLUSIONS:
It was concluded that the restorations were acceptable after 1 year, but restorations placed in cavities with marginal beveling showed less marginal staining than those placed in non-beveled cavities.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Composite Resins
/
Dental Cavity Preparation
/
Dental Restoration, Permanent
Type of study:
Controlled clinical trial
/
Observational study
/
Prognostic study
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2012
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
DDS/BR
/
Federal University of Pelotas/BR
/
Federal University of Rio Grande do Sul/BR
/
Lutheran University of Brazil/BR
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