Influences of iodonium salts on the properties of a hybrid composite resin containing BisS-GMA and expanding monomer modified epoxy

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• 作者：Wenjia Liu ; Jing Fu ; Xiangnan Wu…
• 关键词：BisS ; GMA ; diphenyliodonium hexafluorphosphate ; SOC ; volume shrinkage ; degree of conversion ; compressive strength
• 刊名：Journal of Wuhan University of Technology--Materials Science Edition
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：30
• 期：6
• 页码：1184-1190
• 全文大小：1,377 KB
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• 作者单位：Wenjia Liu (1) (2)
  Jing Fu (3)
  Xiangnan Wu (1) (2)
  Yuanyuan Ma (4)
  Xiaoqing Liu (2)
  Yunmao Liao (2)
  Hang Wang (1) (2)
  
  1. Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
  2. State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
  3. Department of Prosthodontics, Affiliated Hospital of Qingdao University, Qingdao, 266021, China
  4. Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510275, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Chinese Library of Science
  
• 出版者：Wuhan University, co-published with Springer
• ISSN：1993-0437

文摘

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, BisS-GMA [bisphenol-Sbis( 3-methacrylato-2-hydroxypropyl)ether], and epoxy modified by a spiro-orthocarbonate (SOC) expanding monomer. Then, we tested the effects of an iodonium salt, diphenyliodonium hexafluorphosphate (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 AcuVol 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 influence 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 BisS-GMA and SOC-modified epoxy was achieved with 2wt% DPIHFP. The results also indicated that the resin containing BisS-GMA was superior to that containing Bis-GMA in terms of VS, DC and CS. Key words BisS-GMA diphenyliodonium hexafluorphosphate SOC volume shrinkage degree of conversion compressive strength