Biomechanical effect of asymmetric mandibular prognathism treated with BSSRO and USSRO on temporomandibular joints: a three-dimensional finite element analysis

Li, Huihui; Zhou, Nuo; Huang, Xuanping; Zhang, T.; He, Songbing; Guo, Peng

doi:10.1016/j.bjoms.2020.06.006

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…It was indicated that the front neck sustained more loads than the top. It was reported that the maximum tensile stress was distributed at the front neck, consistent with our study, but the maximum compressive stress was distributed at the top 42 . This difference would be caused by the mandibular anterior attachments and the lateral pterygoid muscles.…”

Section: Discussionsupporting

confidence: 87%

“…It was reported that the maximum tensile stress was distributed at the front neck, consistent with our study, but the maximum compressive stress was distributed at the top. 42 This difference would be caused by the mandibular anterior attachments and the lateral pterygoid muscles. In addition, the condylar neck was in high risk of fracture when the mandible was struck.…”

Section: Discussionmentioning

confidence: 99%

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The influence of maxillary incisor angles on the stress distributions of temporomandibular joints under incisal biting

Shao

Chong

et al. 2023

Numer Methods Biomed Eng

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Background and Objective: The incisal biting was one of the most regular jaw activities. The direction of bite force on the incisor tip and the mandible position were relevant to the incisor angle as biting. This study was carried out to explore the influence on the temporomandibular joint (TMJ) caused by the incisor angle. Methods: Twenty individuals belonging to three incisor subtypes of the buccal type were recruited. In addition, the 3D models including the maxillary, mandible and discs were established based on their cone-beam computed tomography and magnetic resonance imaging scannings. Then, the mandibular ligaments and the discal attachments were simulated in the finite element models to analyze the stress distributions of the TMJs under incisal biting. Results:The TMJ stresses of subtype I showed normal range and distribution. The stresses of the intermediate temporal bone tended to increase in subtype II. The intermediate and posterior bands of the discs sustained greater tensile stresses in subtype III.Conclusions: Abnormal stress distributions are harmful to TMJs, so the incisor cusp was not suggested to incline to the palatal side too much. K E Y W O R D Sfinite element analysis (FEA), incisal biting, incisor angles, maxillary incisor, temporomandibular joint (TMJ)

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%