A re‐examination of mandibular movement using a closed circuit television detector

Atkinson, H. F.; Faulkner, K. D. B.

doi:10.1111/j.1834-7819.1981.tb03997.x

Cited by 9 publications

(11 citation statements)

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“…In this group there was almost always a pause or cessation of movement on completion of each cycle, in each component of movement, although occasionally the pause was shorter than has been previously reported (Atkinson & Faulkner, 1981), and very occasionally no pause was observed in one component of a cycle. The mean duration of the pause for each of the 41 subjects ranged from 84-394 ms in the vertical component of movement, from 99-452 ms in the lateral component, and from 107-467 ms in the antero-posterior component.…”

Section: Non-bruxist Subjectssupporting

confidence: 55%

“…The existence of a stationary period within each cycle of mastication in the 'normal' individual has been well documented (Shepherd, 1960;Gillings et al, 1973;Atkinson & Faulkner, 1981), but this effect was not often apparent in the bruxist subjects examined in this study. Analysis of the results has revealed some very interesting differences between the non-bruxist and bruxist groups.…”

Section: Discussionmentioning

confidence: 65%

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Further studies of some masticatory characteristics of bruxism

Faulkner

1990

J of Oral Rehabilitation

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Quantitative analysis of a time dependent factor of jaw movement has shown there to be a significant difference in the muscle physiology of non-bruxist and bruxist subjects. Because bruxism can be difficult to detect in some patients, these results indicate that further development of the technique of jaw movement analysis might be useful as a diagnostic tool. They also point to the value of further study into the possible detection of 'potential' bruxists, thus allowing the development of a preventive aspect of bruxism.

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Section: Non-bruxist Subjectssupporting

confidence: 55%

Section: Discussionmentioning

confidence: 65%

Further studies of some masticatory characteristics of bruxism

Faulkner

1990

J of Oral Rehabilitation

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“…" movement envelope. Also, early protrusion on opening occurred inconsistently, and where it did occur it was a large excursion rather than the small initial protrusive movement described by Atkinson & Faulkner (1981) in early opening in normal patients.…”

Section: Discussionmentioning

confidence: 86%

“…Impressions were taken of fifteen bruxing patients and acrylic clutches fabricated to attach light-emitting diodes (LEDs) to the upper and lower anterior teeth, as previously described (Atkinson & Faulkner, 1981), to indicate the movement of the mandible relative to the maxillae.…”

Section: Methodsmentioning

confidence: 99%

Preliminary studies of some masticatory characteristics of bruxism

Faulkner

1989

J of Oral Rehabilitation

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The masticatory cycles of bruxist subjects were studied using a closed-circuit television movement detector. These cycles were compared with those of non-bruxist subjects. Early results indicate a shorter stationary period between masticatory cycles in all components of movement in bruxist subjects than in non-bruxist subjects. Also, in some bruxists, the envelopes of motion showed quite irregularly shaped patterns, with sudden changes in direction, while others showed a loss of the classical tear-drop pattern.

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“…Alteration of the chewing rhythm must be accompanied by changes in some of these components. However, little information is available concerning the relationship between the chewing rhythm and the jaw movement pattern itself, though a great amount of data has been presented on human and animal jaw movements (Ahlgren, 1966(Ahlgren, , 1976Hannam et al, 1977;Dubner et al, 1978;Atkinson and Faulkner, 1981).…”

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confidence: 99%

Frequency-dependent Modulation of Rhythmic Human Jaw Movements

et al. 1984

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Modulation of jaw movement patterns by alteration of the chewing rhythm was analyzed in nine subjects. Jaw movements were monitored by an electronic transducer system. The subjects were asked to chew gum either at voluntarily determined rates or at rates guided by a light flash that varied from 2 to 7 Hz at 1-Hz intervals. The results can be summarized as follows: Chewing was generally conducted at rates below 3 Hz when the rhythm was voluntarily determined. When the rhythm was guided, however, the maximum chewing rate could occasionally be raised up to 6 Hz; the duration of the chewing cycle was more closely related to changes in the duration of the opening and occlusion phases than to that of the closing phase; at chewing rates below 3 Hz, the maximum gape did not appreciably change with the chewing rhythm, while it decreased linearly at rates above 3 Hz; and at chewing rates below 3 Hz, the jaw opening velocity increased with speed of chewing, whereas it decreased or sometimes fluctuated over a wide range at rates above 3 Hz. It is concluded that, during normal mastication at rates below 3 Hz, chewing rhythm is altered by changing both the velocity of jaw opening and the duration of the occlusion phase.

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A re‐examination of mandibular movement using a closed circuit television detector

Cited by 9 publications

References 0 publications

Further studies of some masticatory characteristics of bruxism

Further studies of some masticatory characteristics of bruxism

Preliminary studies of some masticatory characteristics of bruxism

Frequency-dependent Modulation of Rhythmic Human Jaw Movements

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