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Evaluation of condyle-fossa relationships in skeletal Class I malocclusion with variable degrees of deep overbite and open bite

To compare the temporomandibular joint (TMJ) position and shape between skeletal Class I subjects with different degrees of deep overbite or open bite and unaffected peers. Cone beam computed tomography (CBCT) images of 90 participants, equally divided into deep bite, open bite, and control groups (...

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Bibliographic Details
Published in:Cranio 2022-09, Vol.ahead-of-print (ahead-of-print), p.1-12
Main Authors: Chen, Yanxi, Li, Ying, Li, Lingfeng, Luo, Nan, Zhang, Xiaoya, Dai, Hongwei, Zhou, Jianping
Format: Article
Language:English
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Summary:To compare the temporomandibular joint (TMJ) position and shape between skeletal Class I subjects with different degrees of deep overbite or open bite and unaffected peers. Cone beam computed tomography (CBCT) images of 90 participants, equally divided into deep bite, open bite, and control groups (DBG, OBG, and CG, respectively), were analyzed. The DBG and OBG were further subdivided into three subgroups based on the severity. Linear and angular measurements were used to determine the positional and morphological characteristics of the TMJ. DBG showed significantly larger superior joint space, anterior inclination of the condyle, and articular eminence inclination than CG and OBG. The severity of deep bite and open bite significantly influenced the TMJ position and morphology. In severe deep overbite and open bite cases, there were considerable alterations in TMJ components, most likely as a result of functional demands.
ISSN:0886-9634
2151-0903
DOI:10.1080/08869634.2022.2126918