Abstract
Background/purposeThe aim of this retrospective study was to analyze the morphology of root canal systems of mandibular incisors using cone-beam computed tomographic (CBCT) images. Materials and methodsA total of 374 mandibular incisors' images obtained from CBCT of 101 patients were included in the study. The following information was recorded: (1) the age and sex of the patient, (2) the tooth type, (3) the number of roots, (4) the root canal configuration, and (5) the bilateral/unilateral diversity in root number and the configuration of the root canals. The configuration of the root canals was categorized using Vertucci's classification as the main reference. Statistical analysis was carried out using Chi-square and Spearman's rank correlation tests (P = 0.05). ResultsOverall, 52.4% (n = 196) of the teeth had one root canal (Type I), and 47.6% (n = 178) had two root canals with different root canal configurations. The rate of complex root canal configurations was higher in males than in females (P < 0.001). ConclusionAlmost one of two mandibular incisors had complex root canal systems. The CBCT may be recommended as an effective diagnostic device for identifying complex root canal configurations. The prevalence of complex root canal configuration was higher in males than in females.
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