세 가지 역충전재의 근단부 폐쇄 효과에 관한 전기화학적 연구
An electrochemical study of the sealing ability of three retrofilling materials
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초록
본 연구의 목적은 Super-EBA, MTA, Dyract-flow를 근관 역충전재로 사용하였을 때의 근단부 폐쇄 능력을 전기화학적 방법을 통해 알아보고자 하는 것이다. 48개의 단근치를 Profile을 사용하여 근관형성한 후, Gutter-percha cone으로 수직가압 충전을 시행하였다. 근단부에서 3mm 되는 부위를 bur로 절단한 후, ultrasonic device로 3mm 깊이의 역충전 와동을 형성하였다. 각 실험군은 Super-EBA, MTA, 혹은 Dyract-flow로 역충전하고 4주에 걸쳐 전기화학적인 방법으로 치근단 누출의 변화를 측정한 후, Repeated measures of ANOVA로 통계분석하였다. 그 결과 모든 시편에서 시간에 따른 치근단 누출의 증가가 관찰되었으나, 각 실험군 간에 누출의 차이는 나타나지 않았다. 이러한 결과는 Dyract-flow의 치근단 역충전재로써의 사용 가능성을 시사한다.
Abstract
The purpose of this study was to evaluate the apical sealing ability of Super-EBA, MTA and Dyract-flow as retrofilling materials. Forty-eight extracted human teeth with straight and single root canal were used in this study. The root canals were prepared to a #40 apical canal size and obturated with gutter-percha. Apicoectomies were performed and root end cavities were prepared to a depth of 3mm using an ultrasonic device. The root end cavities were filled with Super-EBA, MTA or Dyract-flow. Leakage was measured using an electrochemical technique for 4 weeks. According to this study, the results were as follows. 1. Increasing leakage with time was observed in all groups. 2. No significant difference was noted among the 3 groups with time (p = 0.216). 3. No significant difference was noted among the 3 groups when measured within the same time interval (p = 0.814). The results of this study suggest that the sealing ability of Dyract-flow is equal to that of Super-EBA and MTA, and Dyract-flow may be an alternative to other materials for root-end filling. .
참고문헌 (21)
- Jou YT,, "Is there a best retrograde filling material?", 41, pp.555~561 (1997)
- Abdal AK, "The apical seal via the retrosurgical approach", pp.614~621
- GArtner AH, "Advances in endodontic surgery", pp.357~358
- Dorn SO, "a retrospective success-failure study of amalgam", pp.391~393 (1990)
- Johnson BR, "Considerations in the selection of a root-end filling material", 87, pp.398~404 (1999)
- Torabinejad M, "Sealing ability of mineral trioxide aggregate when used as a root end filling material", 19, pp.591~595 (1993)
- Rud J, "Retrograde root filling with composite and a dentin-bonding agent", pp.118 126~125 131 (1991), Munksgaard EC
- Greer BD,, "Sealing ability of Dyract and super-EBA as root-end filling materials", 27, pp.441~443 (2001)
- Torabinejad M,, "Bacterial leakage of mineral trioxide aggregate as a root-end filling material", 21, pp.109~112
- Bates CF, "Longitudinal sealing ability of mineral trioxide aggregate as a root end filling material", 22, pp.575~578 (1996)
- Fogel HM, "Microleakage of root-end filling materials", 27, pp.456~458 (2001)
- Tang HM, "Leakage evaluation of root end filling materials using endotoxin", 28, pp.5~7 (2002)
- Fischer EJ, "Bacterial leakage of mineral trioxide aggregate as compared with zinc-free amalgam and super-EBA as a root-end filling material", pp.176~179 (1998)
- Torabinejad M, "Cytotoxicity of four root end filling materials", 21, pp.489~492 (1995)
- Torabinejad M6, Pittford TR, 6McKendry DJ,, "Histologic assessment of mineral trioxide aggregate as a root-end filling materials", 23, pp.225~228 (1997)
- Higa RK, "Dye leakage of four root end filling materials effects of blood contamination", pp.159~163 (1994)
- Bohsali K,, "Sealing ability of Super-EBA and Dyract as root-end fillings a study in vitro", 31, pp.338~342 (1998)
- Pertot WJ, "Comparison of the intraosseous biocompatibility of Dyract and Super EBA by implantation into the femur of rabbits", 23, pp.315~319 (1997)
- Dragoo MR., "Resin-ionomer and hybrid-ionomer cements. Part II. Human clinical and histologic wound healing responses in specific periodontal lesions.", 17, pp.75~87 (1997)
- Jacobson SM, "The investigation of microleakage in the root canal therapy", pp.817~823
- Delivanis PD, "Comparison and reliability of technique for measuring leakage and marginal penetration", pp.410~416