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 chi-square ..