Retrospective study of the 10-year clinical performance of direct resin composite restorations placed with the acid-etch technique

Abstract

Objective: To assess the 10-year clinical performance of resin composite restorations placed using the acid-etch technique. Method and Materials: Clinical evaluation of 58 resin composite restorations was performed by 9 operators of the Operative Dentistry Clinic of the Dental Hospital, Tokyo Medical and Dental University. Conservative preparations had been made and a total-etch adhesive system used for the resin composite restorations, which were placed in 1992 in the Operative Dentistry Clinic. Restorations were scored using the following scale: Alfa-good; Bravo-clinically acceptable; Charlie- clinically unacceptable; Delta-already replaced. The scores were analyzed using the chisquare tes..