Long-term upper airway changes following mandibular advancement with or without maxillary setback in skeletal class II patients: a 2-year retrospective study.

ABSTRACT:

Objective

This study assessed 2-year oropharyngeal airway changes in skeletal Class II patients following isolated mandibular advancement by bilateral sagittal split osteotomy (BSSO) with or without maxillary setback by Le Fort I osteotomy (Le fort I).

Materials and methods

Cone-beam computed tomography (CBCT) data from 25 isolated BSSO and 57 BSSO + Le fort I patients were retrospectively analyzed at three stages: preoperatively (T0), 3 months (T1), and 2 years postoperatively (T2). The total upper airway volume (V), minimum cross-sectional area (CSA_min), and volumes of the nasopharynx (V_NA), velopharynx (V_VE), and glossopharynx (V_GL) were measured via Dolphin Imaging.

Results

Isolated BSSO significantly increased V, CSA

SUBMITTER: Tang HY 

PROVIDER: S-EPMC12765316 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature