A STUDY ON THE ROOT CANAL MORPHOLOGY OF HUMAN MANDIBULAR INCISORS WITH TRANSPARENT SPECIMENS

Yun,  Soo-Han

J Korean Dent Assoc > Volume 16(12); 1978 > Article

The Journal of The Korean Dental Association 1978;16(12):929-933.
Published online December 31, 1978.

투명표본에 의한 하악중절치의 근관형태에 관한 연구

윤수한

서울대학교 치과대학 보존학교실

A STUDY ON THE ROOT CANAL MORPHOLOGY OF HUMAN MANDIBULAR INCISORS WITH TRANSPARENT SPECIMENS

Soo-Han Yun

Dept. of Operative Dentistry, College of Dentistry S.N.U.

Abstract

Sixty six mandibular incisor were injected with China ink, decalcified, cleared and used to study the number of root canals, the frequency and location of lateral canals, the location of apical foramens, the frequency of apical deltas, and the curvature of root canals. The results were as follows: 1. Most of the teeth demonstrated single canal, but 19.7% of the teeth were found to have bifurcated canals. 2. 12% of the teeth were found to have lateral canals and these ramifications were located in the apical third of the root. 3. 25 apical foramens were located directly on the root apex and 41 foramens laterally. 4. 43 canals showed straight, 7 canals distal curvature, 7 labial curvature, 3 mesial curvature.