Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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MICROLEAKAGE OF RESILON BY METHACRYLATE-BASED SEALER AND SELF-ADHESIVE RESIN CEMENT

Resilon을 이용한 근관충전 시 레진계열의 근관실러와 자가-접착 레진시멘트에 따른 미세누출

  • Ham, Sun-Young (Department of Conservative Dentistry, College of Dentistry, Kangnung National University) ;
  • Kim, Jin-Woo (Department of Conservative Dentistry, College of Dentistry, Kangnung National University) ;
  • Shin, Hye-Jin (Department of Conservative Dentistry, College of Medicine, A-jou University) ;
  • Cho, Kyung-Mo (Department of Conservative Dentistry, College of Dentistry, Kangnung National University) ;
  • Park, Se-Hee (Department of Conservative Dentistry, College of Dentistry, Kangnung National University)
  • 함선영 (강릉대학교 치과대학 치과보존학교실) ;
  • 김진우 (강릉대학교 치과대학 치과보존학교실) ;
  • 신혜진 (아주대학교 의과대학 치과학교실) ;
  • 조경모 (강릉대학교 치과대학 치과보존학교실) ;
  • 박세희 (강릉대학교 치과대학 치과보존학교실)
  • Published : 2008.05.30
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Abstract

The purpose of this study was to compare the apical microleakage in root canal filled with Resilon by methacrylate-based root canal sealer or 2 different self-adhesive resin cements. Seventy single-rooted extracted human teeth were sectioned at the CEJ perpendicular to the long axis of the roots with diamond disk. Canal preparation was performed with crown-down technique using Profile NiTi rotary instruments and GG drill. Each canal was prepared to ISO size 40, .04 taper and 1 mm short from the apex. The prepared roots were randomly divided into 4 experimental groups of 15 roots each and 5 roots each for positive and negative control group. The root canals were filled by lateral condensation as follows. Group 1: Guttapercha with AH-26, Group 2: Resilon with RealSeal primer & sealer, Group 3: Resilon with Rely-X Unicem, Group 4: Resilon with BisCem. After stored in $37{\circ}C$, 100% humidity chamber for 7 days, the roots were coated with 2 layers of nail varnish except apical 3 mm. The roots were then immersed in 1% methylene blue dye for 7 days. Apical microleakage was measured by a maximum length of linear dye penetration after roots were separated longitudinally. One way ANOVA and Scheffe's post-hoc test were performed for statistical analysis. Group 1 showed the least apical leakage and there was no statistical significance between Group 2, 3, 4. According to the results, the self adhesive resin cement is possible to use as sealer instead of primer & sealant when root canal filled by Resilon.

본 연구의 목적은 Resilon을 이용한 근관충전시 methacrylate-based root canal sealer와 자가-접착 레진시멘트의 사용에 따른 치근단 미세누출을 비교해 보는 것이다. 70개 단근치를 ProFile NiTi rotary instrument와 GG drill을 이용해 근관성형 하였다. 치근을 4개의 실험군 (n = 15)과 2개의 대조군 (n = 5)으로 분류하여 측방가압법으로 충전하였다. <1군: GP + AH-26, 2군: Resilon + RealSeal primer&sealant, 3군: Resilon + Rely-X Unicem, 4군: Resilon + Biscem > 7일간 1% 메틸렌블루 용액에 침적 후 수직절단하여 치근첨부터 색소의 침투도를 측정하였다. 1군에서 가장 적은 미세누출값이 측정되었고, 2, 3, 4군 간의 통계적 유의성은 없었다. 이번 연구의 결과에 따르면, 자가-접착 레진시멘트는 Resilon을 이용한 근관충전시 sealer로 사용이 가능하리라 생각된다.

Keywords

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