The surface of non-carious cervical lesions (LCNC) is a challenge to adhesive systems, it presents a dentin layer sclera hypermineralized, presence of bacteria and lack of mechanical retention, so this study aimed to evaluate the influence of different surface treatments on LCNC through a randomized clinical trial. Patients with LCNC were referred to the study and selected according to the inclusion criteria, such as the presence of at least 3 LCNC. Three different types of surface treatment were carried out in LCNC: control group, 15 seconds of etching dentin; Group I, acid etching of dentin in 30 seconds; and group II, cavity prophylaxis with ultrasound for 30 seconds. The remaining steps of the adhesive and restorative procedure was the same for all groups, following the material manufacturer's recommendations. Evaluations of restorations will be carried out in periods of one week (baseline), six months, one year, two years and three years as of tooth sensitivity, integrity and color change. Data will be analyzed by McNemar and chi-square test.
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Number of teeth with lost restorations
Timeframe: From Baseline restorations at 3 years