Relationship between interincisal angles and TMJ morphology/position and trabecular structure: a retrospective study

TMJ morphology/position and trabecular structure are influenced by various factors. The role of the interincisal angle, an indicator of the anterior occlusal relationship, on TMJ remains unclear. This study aims to investigate the morphology, trabecular bone structure, and position of the condyle, a...

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Bibliographic Details
Published in:BMC oral health 2024-08, Vol.24 (1), p.1016-10, Article 1016
Main Authors: Hu, Xiaowen, Chen, Ziwei, Mo, Minhua, Zhou, Xiaohe, Chen, Liangjiao
Format: Article
Language:English
Subjects:
Adolescent
Adult
Angle
Axial skeleton
Bone imaging
Bone trabecula
Cancellous bone
Cancellous Bone - anatomy & histology
Cancellous Bone - diagnostic imaging
Computed tomography
Cone-Beam Computed Tomography
Dental research
Diagnosis
Female
Humans
Interincisal angle
Male
Malocclusion
Malocclusion, Angle Class II - diagnostic imaging
Malocclusion, Angle Class II - pathology
Mandibular Condyle - anatomy & histology
Mandibular Condyle - diagnostic imaging
Mandibular Condyle - pathology
Medical examination
Medical research
Morphology
Occlusion
Orthodontics
Physiological aspects
Retrospective Studies
Sample size
Software
Statistical analysis
Temporomandibular joint
Temporomandibular Joint - anatomy & histology
Temporomandibular Joint - diagnostic imaging
Temporomandibular Joint - pathology
Trabecular bone
Variance analysis
Young Adult
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Summary:TMJ morphology/position and trabecular structure are influenced by various factors. The role of the interincisal angle, an indicator of the anterior occlusal relationship, on TMJ remains unclear. This study aims to investigate the morphology, trabecular bone structure, and position of the condyle, as well as the glenoid fossa's morphology in skeletal class II populations with different interincisal angles. A total of 150 adult patients with normodivergent facial types and skeletal class II malocclusions were selected and divided into three groups based on their interincisal angles: normal, small, and large angle groups. The indexes of TMJ were measured using cone-beam computed tomography (CBCT) data and analyzed using Dolphin Imaging, Mimics, and ImageJ. The small angle group had the smallest anteroposterior diameter (APD), while the large angle group had a greater mediolateral diameter (MLD). The large angle group exhibited significantly the largest maximum axial area, bone surface area, and bone volume (P 
ISSN:1472-6831
1472-6831
DOI:10.1186/s12903-024-04788-4