Biomechanical evaluation of the unilateral crossbite on the asymmetrical development of the craniofacial complex. A mechano-morphological approach

Ortún‐Terrazas, Javier; Fagan, Michael J.; Cegoñino, José; Illipronti-Filho, Edson; Palomar, Amaya Pérez del

doi:10.1016/j.cmpb.2022.106703

Cited by 4 publications

(1 citation statement)

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“…Computer methods, such as musculoskeletal modeling ( Andersen et al, 2017 ) and finite-element simulation ( Commisso et al, 2014 ; Ortún-Terrazas et al, 2022 ) have become a common tool in craniofacial and dental research. For the analysis of TMJ loading during bruxism, in silico investigations can help to solve the above mentioned problems of in vivo investigations.…”

Section: Introductionmentioning

confidence: 99%

The effect of tooth cusp morphology and grinding direction on TMJ loading during bruxism

et al. 2022

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Increased mechanical loading of the temporomandibular joint (TMJ) is often connected with the onset and progression of temporomandibular joint disorders (TMD). The potential role of occlusal factors and sleep bruxism in the onset of TMD are a highly debated topic in literature, but ethical considerations limit in vivo examinations of this problem. The study aims to use an innovative in silico modeling approach to thoroughly investigate the connection between morphological parameters, bruxing direction and TMJ stress. A forward-dynamics tracking approach was used to simulate laterotrusive and mediotrusive tooth grinding for 3 tooth positions, 5 lateral inclination angles, 5 sagittal tilt angles and 3 force levels, giving a total of 450 simulations. Muscle activation patterns, TMJ disc von Mises stress as well as correlations between mean muscle activations and TMJ disc stress are reported. Computed muscle activation patterns agree well with previous literature. The results suggest that tooth inclination and grinding position, to a smaller degree, have an effect on TMJ loading. Mediotrusive bruxing computed higher loads compared to laterotrusive simulations. The strongest correlation was found for TMJ stress and mean activation of the superficial masseter. Overall, our results provide in silico evidence that TMJ disc stress is related to tooth morphology.

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Section: Introductionmentioning

confidence: 99%