Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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Influence of plugger penetration depth on the apical extrusion of root canal sealer in Continuous Wave of Condensation Technique

플러거 삽입깊이가 근관실러의 치근단 정출에 미치는 영향

  • So Ho-Young (Department of Conservative Dentistry, School of Dentistry, Kyungpook National University) ;
  • Lee Young-Mi (Department of Conservative Dentistry, School of Dentistry, Kyungpook National University) ;
  • Kim Kwang-Keun (Department of Conservative Dentistry, School of Dentistry, Kyungpook National University) ;
  • Kim Ki-Ok (Department of Conservative Dentistry, College of Medicine, Konkuk University) ;
  • Kim Young-Kyung (Department of Conservative Dentistry, School of Dentistry, Kyungpook National University) ;
  • Kim Sung-Kyo (Department of Conservative Dentistry, School of Dentistry, Kyungpook National University)
  • 소호영 (경북대학교 치과대학 치과보존학교실) ;
  • 이영미 (경북대학교 치과대학 치과보존학교실) ;
  • 김광근 (경북대학교 치과대학 치과보존학교실) ;
  • 김기옥 (건국대학교 의과대학 치과학교실) ;
  • 김영경 (경북대학교 치과대학 치과보존학교실) ;
  • 김성교 (경북대학교 치과대학 치과보존학교실)
  • Published : 2004.09.01
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Abstract

The purpose of this study was to evaluate the influence of plugger penetration depth on the apical extrusion of root canal sealer during root canal obturation with Continuous Wave of Condensation Technique. Root canals of forty extracted human teeth were divided into four groups and were prepared up to size 40 of 0.06 taper with ProFile. After drying. canals of three groups were filled with Continuous Wave of Condensation Technique with System $B^{TM}$ and different plugger penetration depths of 3. 5, and 7 mm from the apex. Canals of one group were filled with cold lateral compaction technique as a control. Canals were filled with non-standardized master gutta-percha cones and 0.02 mL of Sealapex. Apical extruded sealer was collected in a container and weighed. Data was analyzed with one-way ANOVA and Duncan's Multiple Range Test. 3 and 5 mm penetration depth groups in Continuous Wave of Condensation Technique showed significantly more extrusion of root canal sealer than 7 mm penetration depth group (p < 0.05). However, there was no significant difference between 7 mm depth group in Continuous Wave of Condensation Technique and cold lateral compaction group (p < 0.05). The result of this study demonstrates that deeper plugger penetration depth causes more extrusion of root canal sealer in root canal obturation by Continuous Wave of Condensation Technique. Therefore, special caution is needed when plugger penetration is deeper in the canal in Continuous Wave of Condensation Technique to minimize the amount of sealer extrusion beyond apex.

Continuous Wave 가압법으로 근관충전시 플러거 삽입 깊이에 따른 근관실러의 치근단 정출을 평가하고자 직선형의 단근관 및 15번 크기의 치근단공을 가지는 발거된 40개의 치아에서 0.06 경사도 40번 크기가 되게 니켈-티타늄 전동화일인 $ProFile^{\circledR}$로 근관을 형성하고 플러거 삽입깊이를 근단 3, 5 또는 7 mm로 하여 System $B^{TM}$를 이용한 Continuous Wave 가압법 및 측방가압법으로 근관을 충전하였다. 치근단으로 정출된 근관실러의 무게를 측정하여 일원변량분석법과 Duncan's Multiple Range Test로 통계분석하였다. 플러거 삽입깊이 3 mm 또는 5 mm의 Continuous Wave 가압 충전군은 삽입깊이 7 mm 가압충전 군 및 측방가압 충전군에 비해 유의하게 많은 근관실러의 치근단 정출을 나타내었다 (p < 0.05). 그러나 플러거 삽입깊이 3 mm군과 5 mm군 사이 및 플러거 삽입깊이 7 mm Continuous Wave 가압군과 측방가압 군 사이에는 유의한 차이가 나타나지 않았다 (p > 0.05). 본 연구의 결과로 보아 Continuous Wave 가압법으로 근관충전시에는 플러거 삽입깊이가 깊을수록 근관실러의 치근단 정출이 많음을 알 수 있다.

Keywords

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  1. Influence of plugger penetration depth on the area of the canal space occupied by gutta-percha vol.31, pp.1, 2006, https://doi.org/10.5395/JKACD.2006.31.1.066