Influence of different restorative techniques on marginal seal of class II composite restorations.

Objective: To evaluate the gingival marginal seal in class II composite restorations using different restorative techniques.

Material And Methods: Class II box cavities were prepared in both proximal faces of 32 sound human third molars with gingival margins located in either enamel or dentin/cementum. Restorations were performed as follows: G1 (control): composite, conventional light curing technique; G2: composite, soft-start technique; G3: amalgam/composite association (amalcomp); and G4: resin-modified glass ionomer cement/composite, open sandwich technique.