The Effect Of Thermocycling On Three Adhesive Luting Cements

ObjectiveIn the clinical practice of prosthodontics, due to satisfactory stability s holding and more comfortable sense fixed partial denture(PDF) is widely used by patients. A dental cement must be used to acted as a barrier against microbial leakage, sealing the interface between the teeth and restoration and holding them together through some form of surface attachment that may be mechanial, chemical or a combination of both methods, so the clinical success of fixed prostheses is heavily dependent on the adhesive luting cements.Although many researchers take the dental adhesive technology into account and explore it,they cant resolve how to improve adhesive durability and strength because of oral circumstances and teeth textured peculiarity. For the long - term cementation of fixed prostheses, at this time, there are 5 types of commercially a-vailable luting agents, they include: zine phosphate, polycarboxlate, glass iono-mer,resin composite and resin - modified glass ionomer cements. This study will research the effect of thermcycling on three adhesive luting cements in order to provide choice evidence for clinical using of cements.Material and MethodThis study used extracted bovine teeth, made 36 d = 4mm dentine pieces. Prepared 36 Ni - Cr alloy stick of diameter 3.2mm. Adhered them together using; three different cements. Each cement group was divided into 2 sub - group. Control - group didn' t do any management and test - group was carried out thermo-...