An analysis of clinical and imaging features of unilateral impacted maxillary central incisors: A cross-sectional study.

Introduction: This cross-sectional study sought to assess clinical features and 3-dimensional distribution of unilateral impacted maxillary central incisors and identify factors associated with the root morphology.

Methods: Cone-beam computed tomography (CBCT) images from 94 subjects exhibiting unilateral impacted maxillary incisors were selected and evaluated. Original CBCT data were reconstructed using Mimics software (version 17.

[Effect on functional appliances on mandibular growth on skeletal Class II malocclusion: a systematic review].

Objective: To examine the hypothesis that functional appliances enhance mandibular growth in the treatment of skeletal Class II malocclusion.

Methods: A literature search was performed in electronic databases according key words "skeletal Class II malocclusion" , and full texts of selected articles were collected by hand-made method. The data were extracted from the articles.