Two-year clinical evaluation of composite resins in non-carious cervical lesions.

Objective: The purpose of this double-blind, randomised trial was to compare the clinical performance of a hybrid composite (Clearfil AP-X, Kuraray, Tokyo) and a nanocomposite (Filtek Z350, 3M ESPE, St. Paul, MN) over a period of 2 years in non-carious class V lesions using a modified US Public Health Service (USPHS) system.

Methods: Forty-six patients with at least one pair of equivalent non-carious cervical lesions under occlusion and a mean age of 44.