대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)

  • 제41권4호
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  • Pages.493-502
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  • 2003
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  • 0301-2875(pISSN)
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  • 2005-3789(eISSN)
대한치과보철학회 (The Korean Academy of Prosthodonitics)
권호 표지

의치 세정제가 의치상 레진과 이장용 레진의 결합강도와 표면경도에 미치는 영향

THE EFFECT OF DENTURE CLEANSERS ON THE BOND STRENGTH AND THE SURFACE HARDNESS OF RELINE RESIN TO DENTURE BASE RESIN

  • 김계순 (원광대학교 치과대학 보철학교실) ;
  • 정회열 (원광대학교 치과대학 보철학교실) ;
  • 김유리 (원광대학교 치과대학 보철학교실) ;
  • 조혜원 (원광대학교 치과대학 보철학교실)
  • Kim Kyea-Soon (Department of Dentistry, Graduate School, Wonkwang University) ;
  • Jeong Hoe-Yeol (Department of Dentistry, Graduate School, Wonkwang University) ;
  • Kim Yu-Lee (Department of Dentistry, Graduate School, Wonkwang University) ;
  • Cho Hye-Won (Department of Dentistry, Graduate School, Wonkwang University)
  • 발행 : 2003.08.01
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초록

Statement of problem : Removable partial denture and complete denture often require denture base relines to improve the fittness against tissue-bearing mucosa because of the gradual change in edentulous ridge contour and resorption of underlyng bony structure. Self-curing hard reline resins offers the immediate and relatively inexpensive means to be recondition the surface of denture base directly However weak bond between denture base resin and reline material can harbor bacteria, promote staining, or result in complete separation of the two materials. Purpose : The purpose of this study was to evaluate the effect of denture cleansers on bond strength and surface hardness of reline resin to denture base resin Denture base resin beams($60.0{\times}15.0{\times}3.0mm$) were made with Lucitone 199. Material and methods : 10mm section was removed from the center of each specimen. The samples were replaced in the molds and the space of l0mm sections were packed with Tokuso Rebase reline material. The specimens were immersed in denture cleansers (Polident, Cleadent) and were evaluated after 1 week, 2 weeks, and 4 weeks. The bond strength and surface hardness of self-curing hard reline materials to heat-curing denture base resin were measured using an UTM (universal testing machine). Results and conclusion : 1) There was no significant difference of usage, kind, and denture cleaner by application time on the bonding strength of self-curing hard reline resin to denture base resin. 2) There was no significant difference of usage, kind, and denture cleaner by application time on the surface hardness, but the surface hardness showed decreasing tendency, as the time of immersion was extended. 3) The failure modes of the specimens was initially adhesive failure and finally cohesive failure of self-curing hard reline resin.

키워드

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