Cone-Beam Computed Tomographic Assessment of the Mandibular Condylar Volume in Different Skeletal Patterns: A Retrospective Study in Adult Patients

Bioengineering

Chiara Ceratti¹  Alberto Caprioglio¹  Cinzia Maspero¹  Gianluca Martino Tartaglia¹  Stephen Thaddeus Connelly²  Dario Consonni³  Francesco Inchingolo⁴ 

[1] Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy;Department of Oral and Maxillofacial Surgery, University of California San Francisco, San Francisco, CA 94016, USA;Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20100 Milan, Italy;Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy;

关键词: mandibular condyle volume;    cone-beam computed tomography;    skeletal pattern;    3D cephalometry;   

DOI  :  10.3390/bioengineering9030102

来源: DOAJ

【 摘 要 】

The aim of this study was to assess the condylar volume in adult patients with different skeletal classes and vertical patterns using cone-beam computed tomography (CBCT). CBCT scans of 146 condyles from 73 patients (mean age 30 ± 12 years old; 49 female, 24 male) were selected from the archive of the Department of Dentistry and Maxillofacial Surgery of Fondazione IRCCS Ca’ Granda, Milan, Italy, and retrospectively analyzed. The following inclusion criteria were used: adult patients; CBCT performed with the same protocol (0.4 mm slice thickness, 16 × 22 cm field of view, 20 s scan time); no systemic diseases; and no previous orthodontic treatments. Three-dimensional cephalometric tracings were performed for each patient, the mandibular condyles were segmented and the relevant volumes calculated using Mimics Materialize 20.0^® software (Materialise, Leuven, Belgium). Right and left variables were analyzed together using random-intercept linear regression models. No significant association between condylar volumes and skeletal class was found. On the other hand, in relation to vertical patterns, the mean values of the mandibular condyle volumes in hyperdivergent subjects (688 mm³) with a post-rotation growth pattern (625 mm³) were smaller than in hypodivergent patients (812 mm³) with a horizontal growth pattern (900 mm³). Patients with an increased divergence angle had smaller condylar volumes than subjects with normal or decreased mandibular plane divergence. This relationship may help the clinician when planning orthodontic treatment.

【 授权许可】

Unknown