Overall Activity of All Masticatory Muscles during Lateral Excursion

Quantification of the overall activity of every masticatory muscle is requisite for the analysis of stomatognathic function, which has not been accomplished by conventional electromyography. We used positron emission tomography and 18F-fluoro-deoxy-glucose to quantify the overall activity of every m...

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Bibliographic Details
Published in:Journal of dental research 2006-01, Vol.85 (1), p.69-73
Main Authors: Yamaguchi, S., Rikimaru, H., Yamaguchi, K., Itoh, M., Watanabe, M.
Format: Article
Language:English
Subjects:
Adult
Dentistry
Fluorodeoxyglucose F18
Humans
Image Processing, Computer-Assisted
Imaging, Three-Dimensional
Magnetic Resonance Imaging
Male
Mandible - physiology
Masseter Muscle - physiology
Masticatory Muscles - diagnostic imaging
Masticatory Muscles - physiology
Movement
Muscle Contraction - physiology
Positron-Emission Tomography
Pterygoid Muscles - physiology
Radiopharmaceuticals
Temporal Muscle - physiology
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Summary:Quantification of the overall activity of every masticatory muscle is requisite for the analysis of stomatognathic function, which has not been accomplished by conventional electromyography. We used positron emission tomography and 18F-fluoro-deoxy-glucose to quantify the overall activity of every masticatory muscle during lateral excursion, and to evaluate the relative contribution of each masticatory muscle to lateral excursion. The present study suggested that lateral and medial pterygoid muscles are more responsible for lateral excursion than are masseter and temporal muscles. In particular, the contralateral lateral pterygoid muscle plays a major role, followed by the contralateral medial pterygoid muscle.
ISSN:0022-0345
1544-0591
DOI:10.1177/154405910608500112