AN EXPERIMENTAL STUDY FOR MICROLEAKAGE OF AMALGAM USING RESIN ADHESIVE LINERS IN PRIMARY MOLAR TOOTH

유구치 아말감 수복물에서 레진 접착성 이장재의 미세 변연 누출에 관한 비교 연구

  • Kim, Jong-Tae (Department of Pediatric Dentistry, College of Dentistry, Yonsei University) ;
  • Choi, Byung-Jai (Department of Pediatric Dentistry, College of Dentistry, Yonsei University) ;
  • Lee, Jae-Ho (Department of Pediatric Dentistry, College of Dentistry, Yonsei University) ;
  • Lee, Jong-Gap (Department of Pediatric Dentistry, College of Dentistry, Yonsei University)
  • 김종태 (연세대학교 치과대학 소아치과학교실) ;
  • 최병재 (연세대학교 치과대학 소아치과학교실) ;
  • 이제호 (연세대학교 치과대학 소아치과학교실) ;
  • 이종갑 (연세대학교 치과대학 소아치과학교실)
  • Published : 1996.05.31

Abstract

The purpose of this study was to compare the marginal leakage of resin liner which was used as a liner to amalgam restoration. Control group composed of no liner group, copalite group and experimental group composed of All-bond 2, Vitrebond, Superbond D-liner applied groups were evaluated. Cl.V preparation with a size of $3{\times}2{\times}1.5mm$ on 70 extracted primary molars were made and applied appropriate liners for each groups. After amalgam filling and polishing, polished specimens underwent temperature changed from $5^{\circ}C\;to\;55^{\circ}C$ a thousand times. After thermocycling, specimens were placed in 2% methylene blue dye solution for 72 hours in an incubator set at $37^{\circ}C$. The teeth were sectioned buccolingually and the degree of dye penetration was observed with a spectroscopy. (${\times}30$) The following results were obtained. 1. Vitrebond, All-bond 2, Superbond D-liner group exhibited a statistically significant lower degree of dye penetration than no liner and copalite group. (Kruskal-Wallis analysis, P<0.05) 2. No liner group and copalite group exhibited a similar degree of dye penetration. (Mann-Whitney analysis, P>0.05) 3. All-bond 2 group exhibited a statistically significant lower degree of dye penetration than Vitrebond group, (Mann-Whitney analysis, P<0.05) Superbond D-liner group also exhibited a lower degree of dye penetration than Vitrebond group but was statistically insignificant. (Mann-Whitney analysis, P>0.05)

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