Shanghai Journal of Stomatology ›› 2014, Vol. 23 ›› Issue (5): 601-604.

• Clinical Study • Previous Articles     Next Articles

Study of the root canal characteristics of mandibular central incisors in 150 patients using cone-beam computed tomography

ZHANG Lu-dong, WANG Hai-ning, ZHU Ya-qin   

  1. Department of General Dentistry, Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai Key Laboratory of Stomatology. Shanghai 200011, China
  • Received:2013-09-04 Revised:2014-01-02 Online:2014-10-20 Published:2015-02-04

Abstract: PURPOSE: To investigate the root canal characteristics of mandibular central incisors using a cone-beam computed tomography (CBCT) technique. METHODS: One hundred and fifty patients (79 males and 71 females) receiving CBCT scan at Shanghai Ninth People’s Hospital were recruited into this study. A total of 295 image samples of mandibular central incisors were obtained and analyzed in terms of the number and type of root canals. RESULTS: The majority of mandibular central incisors had a single canal (61% possessed a Type I canal system). Although 39% of the roots possessed two canals, only 8.8% had two separate apical foramina. CONCLUSIONS: The prevalence of two canals of mandibular central incisors in this case series was 39% and is within the range reported by previous studies on case series of different racial origin.

Key words: Cone-beam computed tomography, Mandibular central incisor, Root