E-ISSN 2548-0839
European Endodontic Journal Root and Canal Morphology of Mandibular Premolar Teeth in a Kuwaiti Subpopulation: A CBCT Clinical Study []
. 2020; 5(3): 248-256 | DOI: 10.14744/eej.2020.40085

Root and Canal Morphology of Mandibular Premolar Teeth in a Kuwaiti Subpopulation: A CBCT Clinical Study

Deena Jassem Alenezi1, Saad A Al-Nazhan2, Nassr Al-Maflehi3, Cristalle Soman4
1Department of Farwania Dental, Ministry of Health, Kuwait City, Kuwait
2Department of Restorative Dentistry, Riyadh Elm University, College of Dentistry, Riyadh, Saudi Arabia
3Department of Preventive Dental Sciences Biostatistics, King Saud University, College of Dentistry, Riyadh, Saudi Arabia
4Department of Oral and Maxillofacial Surgery Diagnostic Sciences, Riyadh Elm University, College of Dentistry, Riyadh, Saudi Arabia

Objective: To study the root and root canal morphology of mandibular premolars in a Kuwaiti subpopulation using cone-beam computed tomography (CBCT).
Methods: 152 CBCT images were obtained from the radiology department archives of four dental centers in Kuwait. A total of 476 mandibular premolar teeth were analyzed by two observers. The number of roots, root canal configuration types and canal curvature measurements were examined. The relationship between sex, tooth position, and incidence of an additional canal were compared using the chi-square test, and the level of significance was set at 0.05 (P=0.05).
Results: The number of roots in mandibular first premolars was one in 73.9%, two in 24.9%, three and four in 1.2%. On the other hand, the number of roots in mandibular second premolars was one in 79.2% and two in 20.8%. Based on Vertucciís classification system, 18.7% of the teeth were type II followed by type VI (14.3%). The majority of the examined teeth were straight (74.8%) and the incidence of distal root angulation was about 21%. Canal configurations not included in the Vertucci classification were reported in 102 teeth (21.4%). Variability was significantly higher in the second premolars compared to first premolar (P<0.05).
Conclusion: The Kuwaiti population has complex root canal morphology in mandibular premolar teeth. (EEJ-2019-10-104)

Keywords: Cone-beam computed tomography, mandibular premolar, root canal configuration, root canal morphology, root shape

Deena Jassem Alenezi, Saad A Al-Nazhan, Nassr Al-Maflehi, Cristalle Soman. Root and Canal Morphology of Mandibular Premolar Teeth in a Kuwaiti Subpopulation: A CBCT Clinical Study. . 2020; 5(3): 248-256

Corresponding Author: Saad A Al-Nazhan
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