[Adhesive strength between liner and filling in treatment of root canal: in vitro study].

Adhesive strength of combination of several liner and filling materials used for filling dental root channels was studied and the marginal permeability of root channel from the side of the crown was evaluated after filling with several pairs of pad and filling materials. Filling of root channels with gutta percha pins with hermetics did not deteriorate the strength of adhesion of BaseLine pad to the bottom of the cavity, while filling with Forfenane decreased the adhesion of this pad material 3-fold. Use of Belocor polycarboxylate cement for pad essentially deteriorated the adhesive strength of the pad irrespective of the filling material.