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1. Evaluation of the root and root canal systems of mandibular first premolars in northern Taiwanese patients using cone-beam computed tomography

Author

Yao-Der Huang, Jay Wu, Rong-Jiun Sheu, Mu-Hsiung Chen, Der-Lan Chien, Ya-Ting Huang, Chih-Chia Huang, and Yunn-Jy Chen

Subjects
cone-beam computed tomography, mandibular first premolar, root canal system, Taiwanese, Medicine (General), R5-920
Abstract

Cone-beam computed tomography (CBCT) can provide valuable data for root canal systems of human teeth in vivo. This study used CBCT to evaluate the number of roots and canals of 300 mandibular first premolars in 150 northern Taiwanese patients. Methods: The root canal systems of 300 mandibular first premolars in 150 northern Taiwanese patients with bilateral premolars were analyzed by CBCT. Results: Of the 300 mandibular first premolars, 197 (65.7%) had one root with one canal (1R1C), 49 (16.3%) had one root with two canals (1R2C), 51 (17.0%) had two roots with one canal in each root (2R2C), and three (1.0%) had three roots with one canal in each root (3R3C). Statistical analyses showed that women had a significantly higher incidence of 1R1C mandibular first premolars (71.4%) than men (58.8%, p = 0.031), and men had a significantly higher incidence of 2R2C mandibular first premolars (27.2%) than women (8.5%, p

Published
2015
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2. Evaluation of the root and root canal systems of mandibular first premolars in northern Taiwanese patients using cone-beam computed tomography

Author

Yunn-Jy Chen, Rong-Jiun Sheu, Ya Ting Huang, Der Lan Chien, Mu Hsiung Chen, Chih Chia Huang, Yao Der Huang, and Jay Wu

Subjects
Adult, Male, Cone beam computed tomography, Adolescent, cone-beam computed tomography, Root canal, Taiwan, Dentistry, Computed tomography, Mandible, Young Adult, stomatognathic system, Statistical analyses, medicine, otorhinolaryngologic diseases, Humans, Bicuspid, root canal system, Tooth Root, Child, Aged, Orthodontics, Aged, 80 and over, Medicine(all), lcsh:R5-920, medicine.diagnostic_test, business.industry, mandibular first premolar, Taiwanese, General Medicine, Mandibular first premolar, Middle Aged, Root Canal Therapy, medicine.anatomical_structure, Female, Dental Pulp Cavity, business, lcsh:Medicine (General)
Abstract

Background/PurposeCone-beam computed tomography (CBCT) can provide valuable data for root canal systems of human teeth in vivo. This study used CBCT to evaluate the number of roots and canals of 300 mandibular first premolars in 150 northern Taiwanese patients.MethodsThe root canal systems of 300 mandibular first premolars in 150 northern Taiwanese patients with bilateral premolars were analyzed by CBCT.ResultsOf the 300 mandibular first premolars, 197 (65.7%) had one root with one canal (1R1C), 49 (16.3%) had one root with two canals (1R2C), 51 (17.0%) had two roots with one canal in each root (2R2C), and three (1.0%) had three roots with one canal in each root (3R3C). Statistical analyses showed that women had a significantly higher incidence of 1R1C mandibular first premolars (71.4%) than men (58.8%, p = 0.031), and men had a significantly higher incidence of 2R2C mandibular first premolars (27.2%) than women (8.5%, p

Published
2015
Full Text
View/download PDF

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