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ORIGINAL ARTICLE
Year : 2021  |  Volume : 11  |  Issue : 1  |  Page : 54-58

Cone-beam computed tomography evaluation of the root morphology of the maxillary and mandibular premolars in a Moroccan subpopulation: Number of roots and tooth length (part 1)


1 Department of Conservative Dentistry and Endodontics, School of Dentistry, Hassan II University, Casablanca, Morocco
2 Private Practice, Casablanca, Morocco

Correspondence Address:
Prof. Said Dhaimy
Department of Conservative Dentistry and Endodontics, School of Dentistry, Hassan II University, Casablanca
Morocco
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/sej.sej_76_19

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Introduction: The aim of the study was to evaluate the number of roots and tooth length of the maxillary and mandibular premolars of a Moroccan subpopulation using cone-beam computed tomography (CBCT). Materials and Methods: The number of roots and tooth length of 919 maxillary and mandibular premolars (358 maxillary and 561 mandibular) examined by CBCT was evaluated using “Planmeca viewer” software. Statistical analysis was carried out using the Epi info software. Results: The study showed a high prevalence of two roots for maxillary first premolars, and single root for maxillary second premolars and mandibular first and second premolars. The mean length of the maxillary first premolars (single rooted) was 21.74 mm, that of the buccal roots was 21.92 mm, and that of the lingual roots of the two-rooted teeth was 20.67 mm. The maxillary second premolars (21.4 mm) and the mandibular premolars (21.5 mm) exhibited the same mean length. Conclusion: All premolars had a single root in most cases, except for the maxillary first premolars where two-rooted teeth were more frequent with an average length of 21.4 mm. CBCT is an exciting tool for endodontic diagnosis and treatment planning.


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