A 36-month clinical evaluation of ethanol/water and acetone-based etch-and-rinse adhesives in non-carious cervical lesions.

Oper Dent

Department of Restorative Dentistry, School of Dentistry, University Estadual de Ponta Grossa, Ponta Grossa/PR, Brazil.

Published: November 2009

Unlabelled: This double-blind randomized clinical trial compared different ethanol/water and acetone-based systems in non-carious cervical lesions over 36 months.

Materials And Methods: Eighty-four patients having at least one non-carious cervical lesion [NCCL] under occlusion were enrolled in this study. A total of 84 restorations were placed, half for each group (Adper Single Bond [SB] + FiltekA110 or One Step [OS] + MicroNew). All the materials were placed by two calibrated operators. Two other independent examiners evaluated the restorations at baseline, 6, 12, 18 and 36 months, according to slightly modified USPHS criteria. Statistical analysis between materials in each period was conducted using the Fisher's exact test (alpha=0.05), and performance of the materials in the baseline in comparison to each period was evaluated by McNemar's test (alpha=0.05).

Results: The 12-, 18- and 36-month retention rates for SB were 95.2% (12 and 18 months) and 92.3% (36 months). For OS, the retention rates were 83.3%, 73.8% and 56.4%, respectively, for each recall period. After 36 months, 10 OS restorations (25.7%) and seven SB restorations (17.9%) were rated as Bravo in the marginal discoloration item.

Conclusions: The ethanol/water-based adhesive (Single Bond) that was evaluated showed a higher retention rate than the acetone-based system (One Step) after 36 months of clinical service.

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http://dx.doi.org/10.2341/08-117DOI Listing

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