ArticleJournal of conservative dentistry and endodontics2026
Crown morphology and additional canals in mandibular incisors using cone-beam computed tomography: A geometric morphometric study.
Article in Journal of conservative dentistry and endodontics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Context: Mandibular incisors usually have a single root and canal, but additional canals may be present. Undetected canals can lead to endodontic failure. Aims: This study evaluated whether tooth shape and dimensions can predict additional canals. Settings and Design: This study evaluated the relationship between crown shape, buccolingual (BL) width, and overall tooth dimensions in mandibular incisors using cone-beam computed tomography and two-dimensional geometric morphometry. Subjects and Methods: Coronal morphology was documented using TPSutil (version 1.83) and TPSdig2 (version 2.31) in teeth with single and bifid canals. Landmark coordinates were analyzed in MorphoJ (version 1.07a) using Procrustes superimposition. Statistical Analysis Used: Chi-square test, Procrustes analysis of variance (ANOVA), and discriminant function analysis (DFA) were used. Results: Of 108 teeth assessed, 52.7% ( Conclusions: Teeth containing additional canals displayed increased buccal and lingual crest widths and reduced incisal height compared to teeth with a single canal; however, the BL width differences were not statistically significant. Overall, crown dimensions did not show any meaningful association with the presence of extra canals in mandibular incisors.
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