Clinical performance of various bonding agents in noncarious cervical defects

AIM: Four bonding agents and a composite restorative resin were evaluated in patients having noncarious cervical defects. MATERIALS AND METHODS: This clinical trial was conducted in patients having at least 4 noncarious cervical defects in posterior teeth evaluating the clinical effectiveness in relation to retention, discoloration at margins, and postoperative sensitivity of 5(th), 6(th), 7(th), and 8(th) generations of bonding agents over a period of baseline, 3, 6, 12, and 24 months. STATISTICAL ANALYSIS: Data were recorded and put into statistical analysis using Chi-square tests. RESULTS: At 24 months, retention rate was found out to be 92.6% for the 7(th) generation which was better than 5(th) (66.7%) and 6(th) (70.4%) generation whereas significant marginal discoloration was seen at 6 months follow-up in which 5(th) generation showed maximum results. However, all the four generations have an equal score of postoperative sensitivity at all the time intervals. CONCLUSIONS: The 7(th) generation adhesives performed better than other generations in terms of retention. Changes in marginal discoloration were detected at 6 months with maximum score in 5(th) generation adhesives.