Short Dentin Etching With a Universal Adhesive Two-Year Double-Blind Trial Comparing Etching Strategies and Durations for Class I Resin Composite Dental Restorations

What this Trial Is About

Researchers are evaluating and comparing the two-year clinical effectiveness of Class I resin composite dental restorations using a universal adhesive with different bonding methods. The study focuses on three etching strategies: 15-second etch-and-rinse, 5-second etch-and-rinse, and self-etch. This double-blinded randomized clinical trial includes thirty adult patients seeking dental treatment, following strict guidelines to ensure unbiased results. The trial will take place from December 2024 to December 2026 at the University of Mansoura's Faculty of Dentistry. The study uses a split-mouth design where each patient receives three restorations, one for each bonding method. The universal adhesive is applied with either a 15-second etch, 5-second etch, or self-etch technique before placing the resin composite restoration. These procedures are performed on primary occlusal caries in upper or lower posterior teeth. No active advertisement is used for recruitment, and patients give informed consent before participation. Participants will be monitored for two years to assess outcomes such as postoperative tooth sensitivity and the condition of the restoration margins. Evaluations include clinical examinations and tests of pulp status using an electric pulp tester. The study also tracks oral hygiene and occlusion status. Safety and performance data will be collected throughout the study period to understand how these bonding methods compare in dental restoration success and integrity over time.

Clinical Evaluation of Short Dentin Etching