Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
권호 표지

AN EXPERIMENTAL STUDY ON THE APICAL MARGINAL LEAKAGE OF DIFFERENT OBTURATION METHODS

근관충전 방법에 따른 치근단부 근관의 변연 누출에 관한 연구

  • Cho, Yong-Bum (Dept. of Conservative Dentistry, College of Dentistry, Dankook University) ;
  • Hong, Chan-Ui (Dept. of Conservative Dentistry, College of Dentistry, Dankook University)
  • 조용범 (단국대학교 치과대학 치과보존학 교실) ;
  • 홍찬의 (단국대학교 치과대학 치과보존학 교실)
  • Published : 1990.03.25
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Abstract

The purpose of this study was to evaluate the apical seal produced by low temperature($70^{\circ}C$) injection gutta percha technique(ULTRAFIL) with & without sealer, warm latero-vertical cindensation technique (ENDOTEC) with & without sealer, and the lateral condensation technique with sealer. 100 extracted, single rooted human teeth were divided into 5 groups and root canals were enlarged & obturated according to the purpose of this study. Obturated teeth were immersed in 2.5% methylene blue for 48hrs. at $37^{\circ}C$ incubator and split. The apical sealing ability was evaluated by measuring the degree of dye penetration into the canal. The results were as follows: 1. All group showed varying depth of dye penetration. 2. There were no significant difference among Group I (lateral condensation), Group II (ULTRAFIL with sealer) & Group IV (ENDOTEC with sealer) (P>0.05). 3. There were less dye penetration when used in conjunction with sealer (P<0.001).

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