[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.

Three-dimensional measurement and analysis of mandibular characteristics in subjects with impacted mandibular second molars.

Objective: To investigate the morphological characteristics of the mandible in subjects with impacted mandibular second molars by measuring and analysing the mandible in three dimensions.

Setting And Sample Population: In this retrospective study, the data of a total of 52 609 subjects who underwent cone-beam computed tomography (CBCT) for diagnosis and treatment were reviewed. According to the inclusion and exclusion criteria, 183 subjects with impacted mandibular second molars and 176 age- and sex-matched controls were included.