Adaptation of the masseter and temporalis muscles following alteration in length, with or without surgical detachment.
作者： Leo C. Maxwell , David S. Carlson , James A. McNamara , John A. Faulkner
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摘要: Histochemical properties, muscle fiber cross-sectional area, length, and the oxidative capacity of masticatory muscles female rhesus monkeys were assessed following alteration in functional length by an intraoral appliance or detachment muscle. Experimental groups received only (A); subsequent masseter (AD); detached masseter, but with surgical reattachment to pterygomasseteric sling (ADR); no appliance, (DR); which was removed after 24 weeks study posttreatment responses (PT). Animals sacrificed studied at intervals from 4 48 initiation experimental period. The results these studies led conclusions: (1) Stretching temporalis within physiological limits did not significantly alter proportion types, although fibers reduced. (2) Fibers "intermediate" myofibrillar ATPase activity more prevalent than control muscles. (3) area Type I decreased some procedures, indicating that recruitment is most sensitive altered jaw function. (4) Minimal capillarity induced any procedures. (5) lengths Group PT AD ADR greater animals.
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