Effects of chin advancement surgery in hyoid bone and tongue positions and in the dimension of the oropharynx.

Introduction: Advancement genioplasty has been increasingly indicated for the correction of anterior mandibular deficiency as it balances the patient's profile and generates functional changes.

Objective: Thus, the aim of this study was to assess the effects of advancement genioplasty in the oropharyngeal size and in the position of the hyoid bone and tongue.

Methods: The sample comprised 22 lateral cephalometric radiographs of 11 individuals who had undergone advancement genioplasty alone.