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Volume 14, Issue 1 (6-2025)
2025, 14(1): 29-36 |
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Ethics code: IR.GUMS.REC.1401.091
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Simdar N, Khaksari F, Agheshteh Sabzevar S, Rahiminezhad Kisomi A. Variations in Root and Canal Morphology of Maxillary Premolars: A Cross-Sectional Study in Rasht, Iran. Journal title 2025; 14 (1) :29-36
URL: http://3dj.gums.ac.ir/article-1-644-en.html
URL: http://3dj.gums.ac.ir/article-1-644-en.html
1- Department of Endodontics, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
2- Department of Oral & Maxillofacial Radiology, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
3- Student Research Committee, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran ,sobhanagheshteh@gmail.com
4- School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
2- Department of Oral & Maxillofacial Radiology, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
3- Student Research Committee, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran ,
4- School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
Abstract: (191 Views)
Abstract
Introduction: Successful root canal treatment depends on thoroughly understanding root canal morphology. Variations in this anatomy are common and can significantly impact treatment outcomes. This study aimed to investigate the prevalence of root and canal configurations in maxillary premolars and their association with age, gender, and jaw side in a specific Iranian population.
Methods: A cross-sectional study analyzed CBCT images of maxillary premolars from patients treated at oral and maxillofacial radiology clinics in Rasht City, Iran, between 2021 and 2022. Root number and canal morphology (Vertucci classification) were determined. Statistical analysis assessed associations between these variables and age, gender, and jaw side. The significance level of the tests was set at 0.05.
Results: A total of 1732 maxillary premolars were analyzed. Maxillary first premolars showed a nearly equal distribution of single- (46.1%) and double-rooted (52.9%) teeth, while maxillary second premolars were predominantly single-rooted (91.1%). Vertucci types II and IV were most frequent in single-rooted maxillary first premolars, while type I predominated in second premolars. A statistically significant association was found between canal morphology and both gender (p < 0.05) and age (p < 0.05), but not jaw side. Males had a higher frequency of multi-rooted teeth, and canal complexity increased with age.
Conclusions: This study provides valuable data on maxillary premolars' root and canal morphology in a specific Iranian population. The findings highlight significant morphological variations related to tooth type, gender, and age affecting endodontic treatment planning. Pre-operative CBCT assessment may improve treatment outcomes
Introduction: Successful root canal treatment depends on thoroughly understanding root canal morphology. Variations in this anatomy are common and can significantly impact treatment outcomes. This study aimed to investigate the prevalence of root and canal configurations in maxillary premolars and their association with age, gender, and jaw side in a specific Iranian population.
Methods: A cross-sectional study analyzed CBCT images of maxillary premolars from patients treated at oral and maxillofacial radiology clinics in Rasht City, Iran, between 2021 and 2022. Root number and canal morphology (Vertucci classification) were determined. Statistical analysis assessed associations between these variables and age, gender, and jaw side. The significance level of the tests was set at 0.05.
Results: A total of 1732 maxillary premolars were analyzed. Maxillary first premolars showed a nearly equal distribution of single- (46.1%) and double-rooted (52.9%) teeth, while maxillary second premolars were predominantly single-rooted (91.1%). Vertucci types II and IV were most frequent in single-rooted maxillary first premolars, while type I predominated in second premolars. A statistically significant association was found between canal morphology and both gender (p < 0.05) and age (p < 0.05), but not jaw side. Males had a higher frequency of multi-rooted teeth, and canal complexity increased with age.
Conclusions: This study provides valuable data on maxillary premolars' root and canal morphology in a specific Iranian population. The findings highlight significant morphological variations related to tooth type, gender, and age affecting endodontic treatment planning. Pre-operative CBCT assessment may improve treatment outcomes
Keywords: Bicuspid, Root Canal Therapy, Root Canal Preparation, Cone-Beam Computed Tomography, Endodontics
Type of Study: Original article |
Subject:
General
Received: 2025/05/24 | Accepted: 2025/08/15 | Published: 2025/06/30
Received: 2025/05/24 | Accepted: 2025/08/15 | Published: 2025/06/30
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Co-published by Zamen Salamati.
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