Effects of silicone primer on adhesive properties of polymethyl methacrylate frame of prostheses and SYª²1 silicon elastomer

    QU Le, ZHAO Yiª²Min, WANG Baoª²Cheng, ZOU Shiª²Quan, WU Bing, YI Yuanª²Fu

    1Departmeng of Prosthetics, College of Qindu Stomatology, Fourth Military Medical University, Xi¬ðan 710033, China, 2Department of Stomatology, General Hospital, Beijing Armed Police Forces

    ¡¾Abstract¡¿ AIM: To evaluate the effects of silicone primer(Aª²304) on the adhesive properties between polymethyl methacrylate frame of prostheses and SYª²1 silicon elastomer. METHODS: Polymethyl methacrylate and SYª²1 silicon elastomer were adhered by three ways: by silicone adhesive agent(GDª²414) and primer, by primer only or by adhesive agent only. The tension between the polymethyl methacrylate and SYª²1 silicon elastomer between the above three ways was compared. RESULTS: The adhesive strength between the polymethyl methacrylate and SYª²1 silicon elastomer decreased in the order of GDª²414 and Aª²304, Aª²304 only, and GDª²414 only. CONCLUSION: Silicone primer plays an important role in the adhesion between the polymethyl methacrylate and SYª²1 silicon elastomer. Silicone primer and adhesive used together have the greatest strength. ......