Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
권호 표지

A Comparison of the Effectiveness of Stainless-Steel Hand Instrument and Rotary NiTi Retreatment Instrument to Remove Gutta-Percha in Curved Root Canals

만곡된 근관에서 Gutta-Percha 제거 시 스테인리스스틸 수기구와 회전식 NiTi 재치료용 기구의 효과 비교

  • Nam, Dong-Goo (Dept. of Conservative Dentistry, Chonbuk National University) ;
  • Kim, Min-Jeong (Dept. of Conservative Dentistry, Chonbuk National University) ;
  • Cho, Hye-Jin (Dept. of Conservative Dentistry, Chonbuk National University) ;
  • Lee, Kwang-Won (Dept. of Conservative Dentistry, Chonbuk National University) ;
  • Yu, Mi-Kyung (Dept. of Conservative Dentistry, Chonbuk National University)
  • 남동구 (전북대학교 치과대학 치과보존학 교실) ;
  • 김민정 (전북대학교 치과대학 치과보존학 교실) ;
  • 조혜진 (전북대학교 치과대학 치과보존학 교실) ;
  • 이광원 (전북대학교 치과대학 치과보존학 교실) ;
  • 유미경 (전북대학교 치과대학 치과보존학 교실)
  • Received : 2011.01.15
  • Accepted : 2011.03.25
  • Published : 2011.03.30
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Abstract

The main objective of nonsurgical retreatment is to disinfect the root canal space for periradicular healing. Thus, efficient removal of the filling material from the root canal system is essential to ensure a favorable outcome. Traditionally, the removal of root canal filling material was performed by stainless steel hand instrument and this procedure is time and effort-consuming. Recently, rotary NiTi retreatment instruments are developed to effective removal of root canal filling material. The aim of this study was to evaluate the effectiveness of stainless-steel hand instrument and rotary NiTi retreatment instrument when removing gutta-percha in curved root canals. For the remaining materials, there were no significant differences between groups. But the rotary NiTi system proved to be faster than hand instruments in removing root filling materials.

비외과적 재근관치료의 주된 목표는 치근주변의 치유를 위하여 근관 공간을 완전히 멸균하는 것이며, 이 목표를 달성하기 위해서는 이전 충전물질의 완전한 제거가 요구된다. 전통적으로 근관충전물질의 제거는 스테인리스스틸 수기구를 통해서 이루어져 왔으며 이는 시간과 노력이 많이 소요되는 작업이다. 최근 보다 효율적인 근관충전물질의 제거를 위해 재치료용 회전식 NiTi 기구가 소개되었다. 이 연구에서는 만곡된 근관에서의 스테인리스스틸 수기구, ProTaper Universal Retreatment (Dentsply Maillefer, Ballaigues, Switzerland), Mtwo retreatment (Sweden & Martina, Padova, Italy)의 gutta-percha 제거 효율을 비교하였다. 재치료 후 근관 내 남겨진 gutta-percha의 양은 실험군 사이에 유의한 차이가 발견되지 않았다. 하지만 재치료에 소요된 시간은 재치료용 회전식 NiTi 기구를 이용한 실험군에서 더 적게 소요되는 것으로 나타났다.

Keywords

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