Min Wang1, Xuerui Ren2, Yihuai Pan3. 1. Department of Endodontics, School and Hospital of Stomatology, Wenzhou Medical University, 373 West Xueyuan Road, Wenzhou, 325027, Zhejiang Province, People's Republic of China. 2. Wenzhou Medical University, University Town, Chashan, Wenzhou, 325035, Zhejiang Province, People's Republic of China. 3. Department of Endodontics, School and Hospital of Stomatology, Wenzhou Medical University, 373 West Xueyuan Road, Wenzhou, 325027, Zhejiang Province, People's Republic of China. yihuaipan@wmu.edu.cn.
Abstract
OBJECTIVES: To analyze the incidence and distribution of branch canals in mandibular anterior teeth. MATERIALS AND METHODS: Three hundred mandibular anterior teeth, comprising 100 central incisors, 100 lateral incisors, and 100 canines, were scanned using a micro-computed tomography (micro-CT) system. Three-dimensional (3-D) visualization reconstruction of the root canal system and its branch canals was performed on each specimen. Data regarding the number of branch canals, the distance from the anatomical apex to the branch canal, and the orientation of each branch orifice were collected and analyzed. RESULTS: One hundred and fifty-three primary branch canals and 35 secondary branch canals were detected in the specimens overall. The incidence of branch canals in mandibular anterior teeth was 34%, with the highest incidence (50%) exhibited in mandibular canines, followed by lateral incisors (29%). Of the 153 primary branch canals found in the mandibular anterior tooth samples investigated, 82.35% appeared within 3 mm of the apical region, while 71.90% were labial and lingual canals. CONCLUSIONS: There was regularity in the distribution and orientation of branch canals in mandibular anterior teeth. CLINICAL RELEVANCE: This knowledge may be employed as a guide in clinical endodontic therapy.
OBJECTIVES: To analyze the incidence and distribution of branch canals in mandibular anterior teeth. MATERIALS AND METHODS: Three hundred mandibular anterior teeth, comprising 100 central incisors, 100 lateral incisors, and 100 canines, were scanned using a micro-computed tomography (micro-CT) system. Three-dimensional (3-D) visualization reconstruction of the root canal system and its branch canals was performed on each specimen. Data regarding the number of branch canals, the distance from the anatomical apex to the branch canal, and the orientation of each branch orifice were collected and analyzed. RESULTS: One hundred and fifty-three primary branch canals and 35 secondary branch canals were detected in the specimens overall. The incidence of branch canals in mandibular anterior teeth was 34%, with the highest incidence (50%) exhibited in mandibular canines, followed by lateral incisors (29%). Of the 153 primary branch canals found in the mandibular anterior tooth samples investigated, 82.35% appeared within 3 mm of the apical region, while 71.90% were labial and lingual canals. CONCLUSIONS: There was regularity in the distribution and orientation of branch canals in mandibular anterior teeth. CLINICAL RELEVANCE: This knowledge may be employed as a guide in clinical endodontic therapy.
Authors: Richard Johannes Wierichs; Ruslan Hlushchuk; Thomas Gerhard Wolf; Andrea Lisa Anderegg; David Haberthür; Oleksiy-Zakhar Khoma; Sven Schumann; Nane Boemke Journal: Sci Rep Date: 2021-10-28 Impact factor: 4.379