4.0 Article

Identification of malocclusion risk factors after closed treatment of condylar fractures using a novel three-dimensional computed tomography approach

Journal

JOURNAL OF ORAL SCIENCE
Volume 63, Issue 3, Pages 283-285

Publisher

NIHON UNIV, SCHOOL DENTISTRY
DOI: 10.2334/josnusd.20-0600

Keywords

classification; condylar fracture; lateral movement length; prognostic factor; ramus height; three-dimensional computed tomography

Funding

  1. Office of Metropolitan Hospital Management, Tokyo Metropolitan Government

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The study utilized 3D-CT images to evaluate mandibular condyle fractures and found that morphometric measurements could help predict malocclusion after closed treatment.
The condyle is the most common site of mandibular fracture. In the present study, an attempt was made to utilize three-dimensional computed tomography (3D-CT) images to evaluate mandibular condyle fractures and identify prognostic indicators of malocclusion after closed treatment. Accurate morphometric measurements were performed using 3D-CT images obtained before trauma, after trauma, and after healing. Morphometry revealed significant differences in loss of ramus height (LRH) and lateral movement length in patients with malocclusion, and significant LRH differences in patients with other maxillomandibular fractures after healing, or in those with dislocation-displacement. The present method of 3D-CT image analysis appears useful for evaluation of condylar fractures.

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