Relative contributions of genetic and environmental factors to palatal morphology: a longitudinal twin study.

ABSTRACT:

Objectives

This study aimed to determine the genetic and environmental contributions to phenotypic variations of palatal morphology during development.

Methods

Longitudinal three-dimensional digital maxillary dental casts of 228 twin pairs (104 monozygotic and 124 dizygotic) at primary, mixed, and permanent dentition stages were included in this study. Landmarks were placed on the casts along the midpoints of the dento-gingival junction on the palatal side of each tooth and the mid-palatine raphe using MeshLab. Palatal widths, depths, length, area, and volume were measured using those landmarks. Univariate genetic structural equation modelling was performed on twin data at each stage of dental development.

Results

Except for anterior depth, all palatal dimensions incr

SUBMITTER: Giri J 

PROVIDER: S-EPMC11659640 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature