Stability of mandibular rest position

Hickey, Judson C.; Williams, Benjamin H.; Woelfel, Julian B.

doi:10.1016/0022-3913(61)90239-6

Cited by 30 publications

(13 citation statements)

References 2 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). This position of the mandible was found to be influenced by a number of factors such as pain, fear, anxiety, any disorders involving the mandibular motor complex(71), activity of the lips(72), head posture(61), wearing denture (65,67), parafunctional habits, time of recording, weight of soft tissue attached to the mandible (74,75) and the technique used for obtaining the rest position (64).…”

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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“…However, the position of the mandible at rest is not constant and changes throughout life. Moreover, it may differ in the same individual at the same sitting or between sittings 6,15,16,33) . Despite advancements and improvements in technology and innovations in prosthetic dentistry, however, a consensus remains to be reached on how best to accurately establish the OVD.…”

Section: Original Articlementioning

confidence: 99%

Correlation between Finger Length and Occlusal Vertical Dimension in Adult Sudanese Women

Alhajj

Musaad

Ismail

2016

Bull. Tokyo Dent. Coll.

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The objective of this study was to investigate the correlation between the length of each of three fingers (the index finger, 2D; ring finger, 4D; and little finger, 5D) and the occlusal vertical dimension (OVD). If such a relationship were established, it would simplify and facilitate the prediction and reestablishment of the OVD in the construction of complete dentures. The correlation between the OVD and the length of 2D or 5D has already been investigated in a number of studies. However, to our knowledge, no study has investigated the relationship between the length of 4D and the OVD. A total of 117 adult Sudanese women were enrolled in this study. The distance from tip of the finger to the second crease was measured using a digital caliper. The OVD was established based on two measurements: one from the septum of the nose to the menton of the chin; and the other from the tip of the nose (N) to the gnathion at the tip of the chin (Gn). All data were analyzed using the SPSS program. The Pearson correlation coefficient was used to determine the relationship between variables. Differences between means were determined using a paired-sample t-test. The p-value was set at 0.05. A significant correlation was found between finger length and the OVD. However, this correlation was significantly higher between 2D and the OVD based on N-Gn. The present findings indicate that 2D can be used to predict the OVD in adult Sudanese women.

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“…The myoelectric activity recorded from the jaw elevator muscles while the subject is resting has been extensively analysed in healthy subjects and patients. Some authors reported that the physiological rest position is characterized by the absence of muscular activity (17, 66), while others reported a minimal muscular activity at the clinical rest position (67). Kawamura and Fujimoto (68), Garnik and Ramfjord (69) and Møller (3) observed spontaneous muscular activity at the clinical rest position, later confirmed by Rugh and Drago (70).…”

Section: Clinical Applicationsmentioning

confidence: 99%

Surface electromyography in the assessment of jaw elevator muscles

Castroflorio

Bracco

Farina

2008

J of Oral Rehabilitation

121

101

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Surface electromyography (EMG) allows the non-invasive investigation of the bioelectrical phenomena of muscular contraction. The clinical application of surface EMG recordings has been long debated. This paper reviews the main limitations and the current applications of the surface EMG in the investigation of jaw elevator muscles. Methodological factors associated with the recording of the surface EMG may reduce the reliability and sensitivity of this technique and may have been the cause of controversial results reported in different studies. Despite these problems, several clinical applications of surface EMG in jaw muscles are promising. Moreover, technological advances in signal detection and processing have improved the quality of the information extracted from the surface EMG and furthered our understanding of the anatomy and physiology of the stomatognathic apparatus.

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Stability of mandibular rest position

Cited by 30 publications

References 2 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

Correlation between Finger Length and Occlusal Vertical Dimension in Adult Sudanese Women

Surface electromyography in the assessment of jaw elevator muscles

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