Tooth shape asymmetry in post-canine dentition: Evidence-based morphometric insights.

ABSTRACT:

Background

This study investigates the potential existence of asymmetry in the shape of tooth and location of landmarks of tooth anatomy and its variation between sexes.

Methods

Our study evaluated dental symmetry in 160 patients aged 13-20 years, focusing on post-canine dentition. Using 3D geometric morphometrics, the research evaluated the variations in the anatomical landmarks between left and right side.

Results

Analysis of the landmarks revealed that 20-30 % of the principal components explained 80 % of the shape variation. No significant difference in centroid size was found between sexes, but significant shape differences were noted in all teeth except the 3-cusp type mandibular second premolar. Asymmetry was more in the premolar segment in the maxillary arch a

SUBMITTER: Natarajan S 

PROVIDER: S-EPMC12033903 | biostudies-literature | 2025 Jul-Aug

REPOSITORIES: biostudies-literature