Short Dentin Etching With a Universal Adhesive: Two-Year Double-Blind Trial Comparing Etching Strategies and Durations

What this Trial Is About

Researchers are evaluating the two-year clinical performance of Class I resin composite dental restorations using a universal adhesive applied with different bonding methods. The study compares three etching strategies: a 15-second etch-and-rinse, a 5-second etch-and-rinse, and a self-etch technique. This randomized, double-blind trial is designed to provide clear evidence on how these methods affect restoration success for adults aged 35 to 50 years. The study includes thirty adult patients who will each receive three restorations, one for each bonding method, following a split-mouth design. The three treatment groups involve applying phosphoric acid etching for either 15 seconds or 5 seconds followed by adhesive application, or applying the universal adhesive directly in self-etch mode. The trial will run from December 2024 to December 2026 with strict protocols approved by an ethics committee to ensure patient safety and study quality. Participants will be monitored over two years with assessments focusing on postoperative tooth sensitivity and the adaptation of the restoration margins. Evaluations include clinical exams and electric pulp testing to check the health of the treated teeth. Patients will provide informed consent and attend regular follow-up visits to track restoration performance and oral health throughout the study period.

Clinical Evaluation of Short Dentin Etching