Abstract
Recently, self-etching systems have become widely accepted and used in clinical practice. However, it has been suggested that the in vitro enamel bond strength of self-etching system is lower than those obtained with total etch system. The purpose of this study wa to evaluate one-year clinical performance of adhesion to enamel margin with five selfetching systems. A total of 99 restorations were placed with self-etching systems (Clearfil Mega Bond, Unifil Bond, Imperva Fluoro Bond, AQ Bond and One-up Bond-F) and Total etch system (All Bond One-step). Restorations were assessed in 4 categories: marginal discoloration, marginal integrity, secondary caries and pulpal response according to modified USPHS criteria. Assessments were done immediately after placement and 1-year. There was no pulpal response and secondary caries at 1-year recall period. Fortynine restorations were showed slightly marginal changes. It was concluded that the clinical assessments of pulpal response and secondary caries of five self-etchng systems were excellent after 1-year placement. Although, some marginal changes were seen during the clinical trials, these changes were not severe as clinical conditions requiring replacement from recurrent caries. Clinically, these data demonstrate that the adhesion to enamel of self-etching systems were acceptable to adhesive restoration in human teeth.
