[Three-dimensional analysis of the mandible with impacted mandibular second molar].

Objective: To study the developmental and morphological characteristics of the mandible in patients with impacted mandibular second molar and to predict the possible trend of mandibular development via three-dimensional (3D) measurement and analysis.

Methods: A total of 88 cases of impacted group and 88 cases of control group were screened out. 3D measurements were performed by using Mimics software.