Evaluation of several Techniques in Deep Margin Elevation (In-vitro study-SEM study)

Abstract

Background :proximal wall in class II restorations and especially the sealing ability and achieve good adaptation with the gingival wall. The adaptation with the gingival wal will be more difficult when the gingival wall below the gingival margins.

Aim of study : assessment of several composite resin materials in marginal ridge elevation.

Materials and methods :20 proximal cavity in 10 fresh extracted molars and kept in chloramin T , and the 20 cavities divided into four groups : G1= Flowable packable composite ,G2= conventional micro hybride composite, G3= plow snow technique with flowable composite , G4= plow snow technique with packable composite>

Results: Anova test  and chef'e test revealed a significant difference , the marginal gap was : 1 µ in flowable composit and in packable composite where as it was 32µ in conventional composite.

Keywords :

Marginal ridge elevation , Flowable composite , Conventional composite , Packable composite.