Evaluation of root canal morphology of mandibular premolar teeth using cone-beam computed tomography
Document Type : مقالههای پژوهشی
Authors
1 Assistant Professor, Department of Endodontic, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
2 Dental Student School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
3 Assistant Professor, Department of Oral and Maxillofacial Radiology. School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
Abstract
Materials & Methods: In this retrospective descriptive study, CBCT images of 61 patients, including 150 mandibular premolars (75 first premolars and 75 second premolars) were selected. Axial sections with 1-mm slice thickness and distance were reconstructed. One endodontist and one radiologist evaluated the root canal morphology of the teeth on the images. Weine classification of root canal configuration, consisting of four groups was used. Data were collected and the frequency of different configurations of root canal morphology of mandibular premolar teeth was determined using descriptive statistics.
Results: Of 75 mandibular first premolars, 72 teeth (96%) were type I, 2 teeth (2.665%) were type II and 1 tooth (1.335%) was type III. Of 75 mandibular second premolars, 73 teeth (97.33%) were type I, 2 teeth (2.665%) were type II. Type III and IV were not seen in mandibular seconds premolars.
Conclusion: Based on the results of the present study, type I of Weine classification was the most frequent root canal morphology in mandibular first and second premolars. In addition, type IV was the least frequent root canal morphology of mandibular premolars.
Key words: Cone-Beam Computed Tomography, Mandible, Tooth
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