The Journal of Advanced Prosthodontics

  • 제11권1호
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  • Pages.32-40
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  • 2019
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  • 2005-7806(pISSN)
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  • 2005-7814(eISSN)
대한치과보철학회 (The Korean Academy of Prosthodonitics)
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Physical properties and color stability of injection-molded thermoplastic denture base resins

  • Song, So-Yeon (Department of Biomedical Science, Graduate School of Korea University) ;
  • Kim, Kyoung-Soo (Department of Medicine, Graduate School of Korea University) ;
  • Lee, Jeong-Yol (Department of Advanced Prosthodontics, Korea University Guro Hospital) ;
  • Shin, Sang-Wan (Doctor of Medicine, Korea University)
  • 투고 : 2018.05.18
  • 심사 : 2019.01.21
  • 발행 : 2019.02.28
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초록

PURPOSE. The purpose of this study was to compare mechanical and physical properties of injection-molded thermoplastic denture base resins. MATERIALS AND METHODS. In this study, six commercially available products (VA; Valplast, LC; Lucitone, ST; Smiltone, ES; Estheshot-Bright, AC; Acrytone, WE; Weldenz) were selected from four types of thermoplastic denture base materials (Polyamide, Polyester, Acrylic resin and Polypropylene). The flexural properties and shore D hardness have been investigated and water sorption and solubility, and color stability have evaluated. RESULTS. For the flexural modulus value, ES showed the highest value and WE showed significantly lower value than all other groups (P<.05). Most of experimental groups showed weak color stability beyond the clinically acceptable range. CONCLUSION. Within the limits of this study, thermoplastic denture base resin did not show sufficient modulus to function as a denture base. In addition, all resins showed discoloration with clinical significance, and especially polyamides showed the lowest color stability.

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참고문헌

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