Effect of immediate dentine sealing on the fracture strength of lithium disilicate and multiphase resin composite inlay restorations.

Purpose: Limited information is available on the effect of Immediate Dentin Sealing (IDS) on the fracture strength of indirect partial posterior restorations. This study evaluated the effect of IDS on the fracture strength and failure types of two indirect restorative materials.

Materials And Methods: Standard MOD inlay preparations were made on sound molars (N=40, n=10 per group) and randomly divided into four groups to receive the inlay materials with and without the application of IDS: Group L-IDS-: LiSiO (Lithium disilicate, IPS e.