Head posture and hyo-mandibular function in man: A synchronized electromyographic and video fluorographic study of the open-close-clench cycle
Synchronized electromyography and videofluorography (lateral projection) were used to investigate the influence of altered head posture on hyo-mandibular movements, suprahyoid muscle length, suprahyoid working angle, and timing of suprahyoid and masseter muscle activity. Twelve adult male subjects w...
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| Published in | American journal of orthodontics and dentofacial orthopedics Vol. 94; no. 5; pp. 393 - 404 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
Mosby, Inc
1988
|
| Online Access | Get full text |
| ISSN | 0889-5406 1097-6752 |
| DOI | 10.1016/0889-5406(88)90128-X |
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| Abstract | Synchronized electromyography and videofluorography (lateral projection) were used to investigate the influence of altered head posture on hyo-mandibular movements, suprahyoid muscle length, suprahyoid working angle, and timing of suprahyoid and masseter muscle activity. Twelve adult male subjects with normal dentofacial morphology were investigated during the open-close-clench cycle. Using
upright head position (Frankfort horizontal) as reference, several statistically significant observations were made during forward flexion and backward extension of the head. The results indicate that head posture is a significant factor in studies of mandibular and hyoid bone movements, and masseter and suprahyoid muscle function. |
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| AbstractList | Synchronized electromyography and videofluorography (lateral projection) were used to investigate the influence of altered head posture on hyo-mandibular movements, suprahyoid muscle length, suprahyoid working angle, and timing of suprahyoid and masseter muscle activity. Twelve adult male subjects with normal dentofacial morphology were investigated during the open-close-clench cycle. Using
upright head position (Frankfort horizontal) as reference, several statistically significant observations were made during forward flexion and backward extension of the head. The results indicate that head posture is a significant factor in studies of mandibular and hyoid bone movements, and masseter and suprahyoid muscle function. |
| Author | Pancherz, Hans Westesson, Per-Lennart Winnberg, Anders |
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| DOI | 10.1016/0889-5406(88)90128-X |
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| Title | Head posture and hyo-mandibular function in man: A synchronized electromyographic and video fluorographic study of the open-close-clench cycle |
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