Neuromuscular dentistry: Occlusal diseases and posture

Khan, Mohd Toseef; Verma, Sanjeev; Maheshwari, Sandhya; Zahid, Syed Naved; Chaudhary, Prabhat Kumar

doi:10.1016/j.jobcr.2013.03.003

Cited by 32 publications

(40 citation statements)

References 54 publications

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“…These findings highlight a functional correlation between the jaw and neck motor systems. In addition, a recent review reported the existence of an intimate relation between the masticatory and the cranium and cervicoscapular muscular systems . Recently, it has been postulated that the co‐contractions of neck and masticatory muscles may result from complex neurophysiological interactions rather than a simple biomechanical muscle chain coupling …”

Section: Reciprocal Influences Between the Masticatory And The Posturmentioning

confidence: 99%

Dental occlusion and body balance: A question of environmental constraints?

Julià‐Sánchez

Álvarez‐Herms

Burtscher

2019

J of Oral Rehabilitation

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Background:In the past few years, growing interest was given to the relationship between the dental occlusion and the body balance. While most research focused on this relationship at static conditions, it is evident that the contribution of the sensory information for balance control is different depending on the environmental constraints. Research question:The aim of the present paper was to elucidate whether the stomatognathic system (SS) contributes differently on body balance regulation according to the presence of external disturbances. Methods:Literature regarding the different sources involved in the proprioceptive information to the SS was reviewed. The influence of dental occlusion on balance control at different external environments was then explored. Results:The main findings are: (a) a plausible evidence between the masticatory and cervical muscles can be described; (b) a reciprocal connection between the trigeminal and vestibular nuclei supports the influence of the SS on body balance; (c) traditionally, research involving the relationship between the SS and balance control has focused on strictly controlled situations, thus, ignoring the sensory reweighting which occurs depending on the external disturbances; and (d) the afferences of dental occlusion for balance control seem strengthened when more difficult conditions are present. Conclusion:Results of the present review suggest that afferent signals from dental occlusion effectively contribute to balance control when more external perturbations are present, that is unstable support surface, fatigue and tasks being performed.However, more studies are needed to elucidate the mechanisms by which dental occlusion may influence balance control focusing on different external environments. K E Y W O R D Sbody balance, dental malocclusion, dental occlusion, postural control, support surface | 389 JULIÀ-SÁNCHEZ Et aL.

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Section: Reciprocal Influences Between the Masticatory And The Posturmentioning

confidence: 99%

Dental occlusion and body balance: A question of environmental constraints?

Julià‐Sánchez

Álvarez‐Herms

Burtscher

2019

J of Oral Rehabilitation

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“…Although the TMJ posterior compression hypothesis suggested by Costen was repudiated, the role of dental occlusion in TMD and in symptoms of the ear, tongue, head, and neck continue to be discussed in the literature. Dental patients often experience orofacial pain, earache, headache, neck pain, or stiff neck after an occlusal restoration or extraction . Indeed, occlusal correction with dental appliances has been used to treat spasmodic torticollis and cervical muscle disorders .…”

mentioning

confidence: 99%

Dental malocclusion stimulates neuromuscular circuits associated with temporomandibular disorders

Liu

Zhang

Liu

et al. 2018

European J Oral Sciences

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Unilateral anterior crossbite (UAC) has been demonstrated to cause masseter hyperactivity via the periodontal trigeminal mesencephalic nucleus (Vme)–trigeminal motor nucleus circuit. Here, we studied activation of motor neurons of the facial nucleus (VII), hypoglossal nucleus (XII), nucleus ambiguus (Amb), and spinal nucleus of the accessory nerve (SNA) in rats with UAC via their similar connections with Vme. An anterograde tracer, biotinylated dextran amine (BDA), was injected into the Vme to identify the central axon terminals around the motor neurons of VII, XII, Amb, and SNA. The expression of vesicular glutamate transporter 1 (VGLUT1) in neurons of VII, XII, Amb, and SNA, and the expression of acetylcholinesterase (AChE) were measured in the stapedius, lingualis, palatopharyngeal, and sternocleidomastoid muscles. In BDA‐treated rats, many BDA‐labeled cell bodies in the Vme and terminals in VII, XII, Amb, and SNA were identified. Compared with control rats, rats with UAC showed higher expression of VGLUT1 in these nuclei, and statistically significantly higher expression of AChE in the stapedius, lingualis, and sternocleidomastoid muscles, but not in the palatopharyngeal muscle. These findings suggest that UAC activates orofacial, head, and cervical multimotor behaviors via connections between the Vme and the corresponding motor nuclei.

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“…The result of this study showed the positive correlation of IGF-1 rs5742632 in vertical mandibular asymmetry and scoliosis symptom and might be related to the IGF-1 role as mediating growth and development of any organ (Table 3). Development of jaw posture may influence muscles and cause postural adaption, such as asymmetric jaw growth and unbalanced muscle activity as risk factors for occlusal disease and posture in neuromuscular dentistry [31]. This condition might also be related to the variance of phenotype and multifactorial of vertical mandibular asymmetry with the variation of scoliosis symptom.…”

Section: Discussionmentioning

confidence: 99%