• Title/Summary/Keyword: asymmetric spiro orthocarbonates

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Dental Restorative Composite Resins Containing Asymmetric Spiro Orthocarbonate for the Reduction of Volumetric Shrinkage (비대칭 스파이로 오르토카보네이트가 포함된 저수축 치아 수복재)

  • 황미선;김창근
    • Polymer(Korea)
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    • v.28 no.4
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    • pp.321-327
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    • 2004
  • The applications of dental restorative composite resins containing 2,2-bis [4-(2-hydroxy-3-me-thacryloyloxy propoxy) phenyl] propane as a base resin, and triethylene glycol dimethacrylate, as a diluent, were often limited in dentistry due to the relatively large amount of volumetric shrinkage that occurs during the curing reaction. In this study, in order to reduce volumetric shrinkage of the current dental restorative composite resin, asymmetric spiro orthocarbonates were synthesized and then the characteristics of resin composites containing them were explored. The volumetric shrinkage of the dental composites containing spiro orthocarbonates was decreased approximately 45%. However, the curing characteristics and mechanical properties of the new dental composites were slightly poor than those of the commercially available dental composite.