Development of integrated jaw–neck motor function in children at 6, 10 and 13 years of age compared to adults: A kinematic longitudinal study

Nilsson, Evelina; Häggman‐Henrikson, Birgitta; Domellöf, Erik; Hellström, Fredrik; Häger, Charlotte; Österlund, Catharina

doi:10.1111/joor.13539

Cited by 2 publications

(1 citation statement)

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“…The participants consented to participate in this study. Measurements were taken at rest on both sides of the individuals' faces on sets of five muscles with masticatory functionality, some directly implicated in masticatory functionality and others involved in head and neck movement, which is often associated with and perturbed by masticatory function [30][31][32].…”

Section: Methodsmentioning

confidence: 99%

Dynamic Correlations and Disorder in the Masticatory Musculature Network

Campi,

Ricci,

Costa

et al. 2023

Life

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Background: Temporomandibular joint (TMJ) disorders, which affect millions of people worldwide, have multiple etiological factors that make an accurate diagnosis and effective treatments difficult. As a consequence, the gold standard diagnostic criteria for TMJ disorders remain elusive and often depend on subjective decisions. Aim: In this context, the lack of a non-invasive quantitative methodology capable of assessing the functional physiological state and, consequently, identifying risk indicators for the early diagnosis of TMJ disorders must be tackled and resolved. Methodology: In this work, we have studied the biomechanics and viscoelastic properties of the functional masticatory system by a non-invasive approach involving 52 healthy subjects, analysed by statistical–physics analysis applied to myotonic measurements on specific points of the masticatory system designing a TMJ network composed of 17 nodes and 20 links. Results: We find that the muscle tone and viscoelasticity of a specific cycle linking frontal, temporal, and mandibular nodes of the network play a prominent role in the physiological functionality of the system. At the same time, the functional state is characterised by a landscape of nearly degenerated levels of elasticity in all links of the network, making this parameter critically distributed and deviating from normal behaviour. Conclusions: Time evolution and dynamic correlations between biomechanics and viscoelastic parameters measured on the different cycles of the network provide a quantitative framework associated with the functional state of the masticatory system. Our results are expected to contribute to enriching the taxonomy of this system, primarily based on clinical observations, patient symptoms, and expert consensus.

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Section: Methodsmentioning

confidence: 99%