The mandibular rest position and electromyography—a review

Watkinson, A C

doi:10.1111/j.1365-2842.1987.tb00711.x

Cited by 11 publications

(8 citation statements)

References 19 publications

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“…Although several studies (10,(52)(53)(54)(55)(56)(57)(58)(59)(60) found stability in the mandible at a constant position at rest and recommended the use of this position for the determination of the OVD, many other studies (32,35,(61)(62)(63)(64)(65)(66)(67)(68)(69)(70)(71)(72)(73)(74)(75)(76) found a large variation and instability of the mandible at rest position and concluded against relying solely on physiologic rest position for the determination of the OVD. The physiologic rest position varies between individuals, from time to time in the same sitting and between sittings in the same patient, and between dental practitioners (8,32,62).…”

Section: Physiologic Rest Position and Interocclusal Distancementioning

confidence: 99%

Determination of occlusal vertical dimension for complete dentures patients: an updated review

Alhajj

Khalifa

Abduo

et al. 2017

J of Oral Rehabilitation

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Determination of the occlusal vertical dimension (OVD) is an integral part of complete dentures fabrication. Due to the lack of teeth, the clinician faces the challenge of how to accurately establish the OVD of the new denture. Therefore, the purpose of this review article was to present, discuss and critique the available methods used in determining the OVD for complete dentures patients. This review identified two main streams to determine the OVD: (i) pre-extraction methods and (ii) post-extraction methods. For the pre-extraction methods, the OVD of the natural dentition is transferred to the new dentures mainly by intra-oral measurements, profile tracing and cephalometric analysis. The post-extraction methods rely on mandibular rest position, facial aesthetic appearance, swallowing pattern, craniofacial landmarks measurements, cephalometric analysis, phonetics and existing dentures. In general, all the available techniques have merits and are helpful for routine clinical use. However, they are empirical in nature, controversial and lack the scientific support. Further, there is no single accurate method for OVD determination. To overcome the limitations of the techniques, the clinician will benefit from applying combination of techniques to approximate the OVD.

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Section: Physiologic Rest Position and Interocclusal Distancementioning

confidence: 99%

Determination of occlusal vertical dimension for complete dentures patients: an updated review

Alhajj

Khalifa

Abduo

et al. 2017

J of Oral Rehabilitation

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“…Postural activity -It is generally accepted that mandibular elevator muscles show a low level of activity when the mandible is in its natural position of rest (41,(67)(68)(69)(70)(71)(72). Therefore, the postural position of the mandible is controlled actively depending on head and body posifion (41,68,73,74), particularly by the active tone of temporalis muscles (68).…”

Section: Action Of Mandibular Elevator Musclesmentioning

confidence: 99%

Craniomandibular disorders and masticatory muscle function

Bakke

Möller

1992

European J Oral Sciences

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The heading craniomandibular disorder covers a wide range of abnormal and pathologic conditions accompanied by orofacial pain and impaired mandibular function, the masticatory muscles and the temporomandibular joints being the structures most frequently involved. Prevalences of serve carniomandibular disorder accompanied by headache and facial pain urgently in need if treatment are 1–2% in children, about 5% in adolescents, and 5–15% in adults, with higher values in women than in men. With respect to physiology and ergonomics, masticatory muscles are comparable to other human skeletal muscles, e.g. of shoulder, neck and lower back. Therefore these muscles share pathogenesis, symptoms and signs of muscular disorders caused by prolonged, low‐level static contractions or intermittent isometric contractions at higher levels. Since the same elements of performance in the masticatory muscles are influenced by occlusal factors, they link the development of muscular fatigue, discomfort and pain to the dental occlusion. Furthermore, changes of the occulusal surfaces, e.g. due to dental treatment, may influence the performance of the masticatory muscles, and consequently with local muscular function.

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“…Muscle relaxation is monitored by EMG recording by surface electrodes. Unfortunately, as already stated, the assumption underlying this method is mistaken, because the habitual mandibular position does not correspond to the position of minimal muscle activity (Moller, 1966;Rugh and Drago, 1981;Watkinson, 1987), and so the presumed link between these two states does not exist (see Fig. and accompanying text).…”

Section: (112) Effects Of a Modification Of Head Position On The Antmentioning

confidence: 99%

Regulation of Mandibular Postures: Mechanisms and Clinical Implications

Woda¹,

Pionchon²,

Palla

2001

Critical Reviews in Oral Biology & Medicine

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This review argues that (1) the habitual mandibular position is constantly variable and so cannot be considered as a craniomandibular reference point, (2) there is no unique centric relation, (3) mandibular posture greatly depends on head posture, (4) clinical evaluation of the occlusal vertical dimension is mostly empirical, and (5) neither the vertical dimension at rest nor the centric relation can be determined by means of existing instrument-based clinical methods. However, some physiological conditions exist that facilitate the recording of craniomandibular position.

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The mandibular rest position and electromyography—a review

Cited by 11 publications

References 19 publications

Determination of occlusal vertical dimension for complete dentures patients: an updated review

Determination of occlusal vertical dimension for complete dentures patients: an updated review

Craniomandibular disorders and masticatory muscle function

Regulation of Mandibular Postures: Mechanisms and Clinical Implications

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