Restorative Dentistry and Endodontics

  • 제36권5호
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  • Pages.385-396
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  • 2011
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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접착제의 접착변수가 레진계 근관충전제의 근단밀폐효과에 미치는 영향

The effects of total-etch, wet-bonding, and light-curing of adhesive on the apical seal of a resin-based root canal filling system

  • 류원일 (서울대학교 치의학대학원 치의학과) ;
  • 손원준 (서울대학교 치의학대학원 치과보존학교실) ;
  • 백승호 (서울대학교 치의학대학원 치과보존학교실) ;
  • 이인한 (서울대학교 치의학대학원 치과보존학교실) ;
  • 조병훈 (서울대학교 치의학대학원 치과보존학교실)
  • Ryu, Won-Il (Department of Dentistry, Seoul National University School of Dentistry) ;
  • Shon, Won-Jun (Department of Conservative Dentistry, Seoul National University School of Dentistry and Dental Research Institute) ;
  • Baek, Seung-Ho (Department of Conservative Dentistry, Seoul National University School of Dentistry and Dental Research Institute) ;
  • Lee, In-Han (Department of Conservative Dentistry, Seoul National University School of Dentistry and Dental Research Institute) ;
  • Cho, Byeong-Hoon (Department of Conservative Dentistry, Seoul National University School of Dentistry and Dental Research Institute)
  • 투고 : 2011.06.23
  • 심사 : 2011.07.31
  • 발행 : 2011.09.30
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초록

연구목적: 본 연구는 치근벽의 전처리 개념과 접착제의 중합방법이 레진계 근관충전제의 치근단 밀폐능에 미치는 영향을 평가하였다. 연구 재료 및 방법: 3가지 다른 접착변수를 조합하여 충전한 Resilon-RealSeal 시스템의 근단미세누출을 색소침투법을 이용하여 통상의 가타퍼쳐 충전과 비교하였다. 실험군은 자가부식형 RealSeal primer와 이중중합형 RealSeal sealer를 이용하여 Resilon 충전한 SEDC군, 산부식없이 Scotchbond Multi-Purpose primer를 적용한 후 접착제는 광중합하고 Resilon을 충전한 NELC군, 및 Scotchbond Multi-Purpose의 접착강화제와 접착제를 total etch/wet bonding과 광중합의 술식을 정확하게 지켜서 Resilon을 충전한 TELC군으로 구분하였다. 대조군(GPCS)에서는 통상의 AH26 plus sealer를 사용하여 가타퍼쳐를 충전 하였다. 결과: 치아장축방향의 색소침투는 TELC군에서 GPCS군과 SEDC군에 비해 유의하게 작았다(Kruskal-Wallis test, p < 0.05). 횡단면의 미세누출 점수도 TELC군이 근첨으로부터 2 - 5 mm의 범위에서 다른 군에 비해 유의하게 낮았다(Kruskal-Wallis test, p < 0.05). 결론: 레진계 근관충전제를 사용 시에는, 자가부식형 전처리제와 이중중합형 sealer보다는, total etch/wet bonding 개념과 적절한 광중합을 도모하는 전처리제 및 접착제의 사용이 치근단 미세누출을 감소시키므로 추천된다.

Objectives: This study evaluated the effects of adhesion variables such as the priming concepts of canal wall and the curing modes of adhesives on the sealing ability of a resin-based root canal filling system. Materials and Methods: Apical microleakage of the Resilon-RealSeal systems filled with 3 different combinations of adhesion variables was compared with the conventional gutta-percha filling using a dye penetration method. Experimental groups were SEDC, Resilon (Resilon Research LLC) filling with self-etch RealSeal (SybronEndo) primer and dual-cure RealSeal sealer; NELC, Resilon filling with no etching, Scotchbond Multi-Purpose (3M ESPE) primer application and light-curing adhesive; and TELC, Resilon filling with Scotchbond Multi-Purpose primer and adhesive used under total etch / wet bonding and lightcure protocols. GPCS, gutta-percha filling with conventional AH26 plus sealer, was the control group. Results: The median longitudinal dye penetration length of TELC was significantly shorter than those of GPCS and SEDC (Kruskal-Wallis test, p < 0.05). In the cross-sectional microleakage scores, TELC showed significant differences from other groups at 2 to 5 mm from the apical foramen (Kruskal-Wallis test, p < 0.05). Conclusions: When a resin-based root canal filling material was used, compared to the self-etching primer and the dual-cure sealer, the total etch/wet-bonding with primer and light-curing of adhesive showed improved apical sealing and was highly recommended.

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