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

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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