Methods: Thirty patients, with at least three noncarious cervical lesions were enrolled in the study. One operator placed ninety restorations in the patients. The teeth were randomly restored with three adhesive systems including; OptiBond FL (OF); total etch-three steps, OptiBond Solo plus (OS); total etch-two steps, and OptiBond All-In-One (OA); self etch-one step, and then with Herculite XRV (Kerr) resin composite and manufacturers' instructions were followed. The restorations were photographed at baseline and after six months period. The restorations were evaluated using the USPHS criteria. After the ranking of restorations from the standpoint of clinical performance over the six months, data were analyzed using Friedman and Wilcoxon tests (P<0.05).
Results: Retention rate after six months were 96% for (OF), 93% for (OS) and 89% for (OA). There was a significant difference in marginal discoloration for (OA) adhesive after six months compared to the baseline (P<0.05). However the difference in marginal discoloration was not statistically significant among the three types of adhesives over six months (P>0.05). Other restoration criteria had no statistically significant differences between the three dentin adhesives after six months (P>0.05).
Conclusions: The clinical performance of three types of adhesives in Class V noncarious lesions was similar after six months.