20. Morphological characteristics of the first premolars' root canal on cone beam CT images
Main Article Content
Abstract
The first premolars have a diverse anatomical structure of the root canal system, making their root canal treatment challenging. Therefore, before the treatment, the dentist needs to fully understand the morphology and variation of the root canal. The aim of this study is to describe the morphological characteristics of the root canal of the first premolars on Cone Beam CT (CBCT) images. Method: An experimental study was conducted on 51 maxillary and 39 mandibular first premolars from June 2021 to June 2022 at the Department of Oral and Maxillofacial Surgery, Hanoi Medical University Hospital and the Institute of Dental and Maxillofacial Education, Hanoi Medical University. Result: The majority of the maxillary first premolars had one root canal (86.3%), while the mandibular first premolars had an equal distribution of one and two root canals (46.2%). The majority of the two roots of the maxillary first premolars had Type I root canal system (96%), while almost half of the single roots of the mandibular first premolars had Type I (47.4%) or Type V (34.2%) root canal systems. The majority of the maxillary and mandibular first premolars had moderate curvature, 86.9% and 83.6% respectively. Conclusion: The first premolars exhibit complexity in terms of the number of root canals, curvature, and shape of the root canal.
Article Details
Keywords
Maxillary first premolar, mandibular first premolar, Cone Beam CT images
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