Abstract
Background A thorough knowledge of root and root canal morphology in primary dentition is essential for success of endodontic therapy. This information also finds importance in anthropological research in reconstructing human population history. Lack of studies of root and root canal morphology in mandibular anterior teeth prompted us to the present study. Methods A total of 109 extracted primary mandibular incisors and canines were collected, out of which 90 teeth were selected for this study and divided into 3 groups: CI, mandibular central incisor; LI, mandibular lateral incisor; C, mandibular canine. All the sample teeth were scanned using cone beam computed tomography (CBCT). Number of roots, number of root canals, length of root, mesiodistal (MD), and buccolingual (BL) width of canal, shape of canal, and presence of accessory canals were assessed. Collected data were statistically compared using one-way ANOVA and chi-square tests. Results All teeth studied displayed single root with single root canal conforming to type I Vertucci's classification. Root length of CI was significantly shorter than both LI and C, with no significant difference between LI and C. Straight root canals were more common in CI and LI, whereas curved canals were more common in C. S-shaped canals were seen in a few CI and C. BL canal width was more than MD width in all teeth, C showing significantly larger dimensions than both CI and LI. Conclusion This study presents root and root canal characteristics of primary mandibular central incisor, lateral incisor, and canine in children from Indian ethnicity.
Highlights
IntroductionPreservation of primary teeth with pulpal disease maintains space and restores the teeth to normal function
Root canal morphology of all the teeth conformed to type I Vertucci’s classification: presence of a single main canal starting from the pulp chamber to root apex
All primary mandibular central incisors, lateral incisors, and canines included in this study had single roots with single canal per root
Summary
Preservation of primary teeth with pulpal disease maintains space and restores the teeth to normal function. Primary mandibular canine is often affected by caries during early childhood and may show pulpal damage. Premature extraction of these canines may lead to midline shift when performed unilaterally [1]. Bilateral extractions of primary mandibular canines may lead to retrusion of the lower incisors and loss of arch length, especially in crowded arches [2, 3]. To avoid these complications and further orthodontic treatment, the clinician may decide against extraction. Is study presents root and root canal characteristics of primary mandibular central incisor, lateral incisor, and canine in children from Indian ethnicity Conclusion. is study presents root and root canal characteristics of primary mandibular central incisor, lateral incisor, and canine in children from Indian ethnicity
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