Clinical Application Of Posterior Indirect Adhesive Restorations

Nowadays,posterior indirect adhesive restorations mainly include inlays,onlays and overlays.The 5-year and 10-year survival rates of ceramic and composite resin inlays and onlays of posterior teeth are about 87.1%?97.6%and 51.4%?85.4%,respectively.Their performances are based on several factors such as the materials and thickness of restoration,the position and condition of the abutment tooth and the application of cements.Previous clinical researches showed that the risk of fracture was decreased significantly when the thickness of inlays was increased to 2 mm.Compared with self-etch and etch-&-rinse resin cements,self-adhesive resin cements have achieved similar clinical results when they were used for adhesion.Another,the application of resin cements and rubber dams have effectively improved the clinical outcome of inlays and onlays.However,a consolidated conclusion cannot be drawn concerning the different materials used for inlay restorations,the positions and conditions of abutment tooth and the types of adhesive cements.In the present study,posterior indirect adhesive restorations were performed in 5 patients.According to the desire of the patients,bite forces and the conditions of residual dental tissue,different indirect adhesive restorations such as inlays,onlays,and overlays were used to repair the defective tooth.The design of each patient's prosthesis was discussed and analyzed in order to reserve the tissue of tooth maximally and achieve satisfactory clinical results.