Biomaterial Database

Electromyographic and ultrasonographic observations of masseter and anterior temporalis muscles in children. 1996

S A Rasheed, and N T Prabhu, and A K Munshi

Department of Pedodontics and Preventive Dentistry, A.B. Shetty Memorial Institute of Dental Sciences, Mangalore, India.

Muscle thickness and activity of masseter and anterior temporalis muscles in children with Class I molar occlusion having normal anterior relation, anterior deep-bite and anterior open-bite were measured using ultrasonographic and electromyographic techniques. The results demonstrated an increased muscle thickness in the deep-bite followed by open-bite subjects. Muscle activity was high in the same groups. A significant correlation between thickness and activity was noted only in the anterior temporalis muscle of subjects with normal anterior relation. Activity index indicated that masseter contributed to the higher activity in the clenching effort.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008310	Malocclusion	Such malposition and contact of the maxillary and mandibular teeth as to interfere with the highest efficiency during the excursive movements of the jaw that are essential for mastication. (Jablonski, Illustrated Dictionary of Dentistry, 1982)	Angle's Classification,Crossbite,Tooth Crowding,Cross Bite,Angle Classification,Angles Classification,Bite, Cross,Bites, Cross,Classification, Angle's,Cross Bites,Crossbites,Crowding, Tooth,Crowdings, Tooth,Malocclusions
D008406	Masseter Muscle	A masticatory muscle whose action is closing the jaws.	Masseter Muscles,Muscle, Masseter,Muscles, Masseter
D012016	Reference Values	The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.	Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D004576	Electromyography	Recording of the changes in electric potential of muscle by means of surface or needle electrodes.	Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013703	Temporal Muscle	A masticatory muscle whose action is closing the jaws; its posterior portion retracts the mandible.	Muscle, Temporal,Muscles, Temporal,Temporal Muscles
D014463	Ultrasonography	The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz.	Echography,Echotomography,Echotomography, Computer,Sonography, Medical,Tomography, Ultrasonic,Ultrasonic Diagnosis,Ultrasonic Imaging,Ultrasonographic Imaging,Computer Echotomography,Diagnosis, Ultrasonic,Diagnostic Ultrasound,Ultrasonic Tomography,Ultrasound Imaging,Diagnoses, Ultrasonic,Diagnostic Ultrasounds,Imaging, Ultrasonic,Imaging, Ultrasonographic,Imaging, Ultrasound,Imagings, Ultrasonographic,Imagings, Ultrasound,Medical Sonography,Ultrasonic Diagnoses,Ultrasonographic Imagings,Ultrasound, Diagnostic,Ultrasounds, Diagnostic