Infl uences of Iodonium Salts on the Properties of a Hybrid Composite Resin Containing Bis S-GMA and Expanding Monomer Modifi ed Epoxy
来源期刊:Journal Of Wuhan University Of Technology Materials Science Edition2015年第6期
论文作者:刘文佳 FU Jing WU Xiangnan MA Yuanyuan LIU Xiaoqing LIAO Yunmao 王航
文章页码:1184 - 1190
摘 要:In order to reduce shrinkage and improve the mechanical properties of dental composite resins, we designed a hybrid resin formulation containing a novel matrix resin, Bis S-GMA [bisphenol-Sbis(3-methacrylato-2-hydroxypropyl)ether], and epoxy modifi ed by a spiro-orthocarbonate(SOC) expanding monomer. Then, we tested the effects of an iodonium salt, diphenyliodonium hexafl uorphosphate(DPIHFP), on the properties of the hybrid resin with seven different concentrations. The hybrid resin was polymerized by a ternary photo-initiator system. The volumetric shrinkage(VS), degree of conversion(DC) and compressive strength(CS) were assessed using Acu VolTM, FTIR and a universal testing machine, respectively. The VS, DC and CS were improved with increasing DPIHFP concentration, but a high concentration of DPIHFP had a negative infl uence on the mechanical properties of the hybrid resin and offered no added improvement in the VS and DC. The best performance of a composite resin containing Bis S-GMA and SOC-modifi ed epoxy was achieved with 2wt% DPIHFP. The results also indicated that the resin containing Bis S-GMA was superior to that containing Bis-GMA in terms of VS, DC and CS.
刘文佳1,2,FU Jing3,WU Xiangnan1,2,MA Yuanyuan4,LIU Xiaoqing2,LIAO Yunmao2,王航1,2
1. Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University2. State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University3. Department of Prosthodontics,Affi liated Hospital of Qingdao University4. Guanghua School of Stomatology, Hospital of Stomatology, Sun YatSen University, Guangdong Provincial Key Laboratory of Stomatology
摘 要:In order to reduce shrinkage and improve the mechanical properties of dental composite resins, we designed a hybrid resin formulation containing a novel matrix resin, Bis S-GMA [bisphenol-Sbis(3-methacrylato-2-hydroxypropyl)ether], and epoxy modifi ed by a spiro-orthocarbonate(SOC) expanding monomer. Then, we tested the effects of an iodonium salt, diphenyliodonium hexafl uorphosphate(DPIHFP), on the properties of the hybrid resin with seven different concentrations. The hybrid resin was polymerized by a ternary photo-initiator system. The volumetric shrinkage(VS), degree of conversion(DC) and compressive strength(CS) were assessed using Acu VolTM, FTIR and a universal testing machine, respectively. The VS, DC and CS were improved with increasing DPIHFP concentration, but a high concentration of DPIHFP had a negative infl uence on the mechanical properties of the hybrid resin and offered no added improvement in the VS and DC. The best performance of a composite resin containing Bis S-GMA and SOC-modifi ed epoxy was achieved with 2wt% DPIHFP. The results also indicated that the resin containing Bis S-GMA was superior to that containing Bis-GMA in terms of VS, DC and CS.
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