Three-dimensional analysis of posterior tooth inclinations in transverse and sagittal relationships: A cross-sectional study.

Objective: To compare tooth inclinations in different sagittal skeletal patterns and transverse maxillary relationships three-dimensionally.

Methods: A cross-sectional study carried out with 132 three-dimensional digital models in the complete permanent dentition divided into six groups (n=22); three groups with maxillary atresia: G1- skeletal class I, G2- skeletal class II and G3-skeletal class III; three groups without maxillary atresia: G4- skeletal class I; G5- skeletal class II and G6- skeletal class III. The comparison between the skeletal pattern was performed by the non-parametric tests of Kruskal Wallis and Dunn and between the groups by the non-parametric test of Mann Whitney.