The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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THE EFFECTS OF MONO-POLY ON THE SOFT DENTURE LINERS

의치상용 연성 이장재에 대한 mono-poly의 효과

  • Heo, Ji-Hyun (Department of Prosthodontics, College of Dentistry, Wonkwang University) ;
  • Jin, Tai-Ho (Department of Prosthodontics, College of Dentistry, Wonkwang University) ;
  • Cho, Hye-Won (Department of Prosthodontics, College of Dentistry, Wonkwang University)
  • 허지현 (원광대학교 치과대학 보철학교실) ;
  • 진태호 (원광대학교 치과대학 보철학교실) ;
  • 조혜원 (원광대학교 치과대학 보철학교실)
  • Published : 2000.05.01
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Abstract

Soft denture liners or conditioners may be valuable therapeutic materials. The life of these liners is short and varies, but it can be extended by the use of a mono-poly(polymethyl methacrylate coating material). This study determined whether coating three temporary soft denture liners with mono-poly affected the resiliency of soft liners, and evaluated the ability of mono-poly to prevent water absorption and alcohol loss from the underlying soft liners. $20{\times}12mm$ cylindrical specimens of Coe-Soft, Soft-Liner, Coe-Comfort soft lining materials were made and divided into two groups of mono-poly uncoated(control) and mono-poly coated specimens. Specimens were immersed in water and compressed on an instron universal testing machine and weighed at initial, 24 hours, 1 week, 2 weeks, and 4 weeks. Resiliency was determined by measuring the energy absorbed by the soft liners when stressed to a specific yield point. Mono-poly coating significantly increased the resiliency of the Soft-Liner, but had no effect on the other soft liners. Among the 3 soft liners, Soft-Liner showed the hightest resiliency and modulus of elasticity. The weight loss in Soft-Liner was the least among the 3 liners, and the weight loss in Coe-Soft was decreased by monopoly coating.

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