TY - JOUR
T1 - Histochemical study of the masseter muscle in patients with vertical maxillary excess
AU - Boyd, Scott B.
AU - Gonyea, William J.
AU - Finn, Richard A.
AU - Woodard, Charline E.
AU - Bell, William H.
N1 - Funding Information:
Received from the University of Texas Health Science Center. 5325 Harry Hines Boulevard, Dallas, Texas 75235. Supported by NIH Grant 5-ROI-DE0 3794-08 and NIH National Research Service Award l-F32-DE0 33 17-01. * Research Fellow, Division of Oral Surgery. t Professor, Department of Cell Biology. $ Assistant Professor, Division of Oral Surgery and Department of Cell Biology. R Research Technician. Department of Cell Biology. II Professor. Division of Oral Surgery. Address correspondence and reprint requests to Dr. Boyd.
PY - 1984/2
Y1 - 1984/2
N2 - This study was designed to examine the morphologic properties of the masseter muscle in individuals with vertical maxillary excess (VME). The deep surface of the anterior aspect of the superficial masseter was biopsied in nine patients at the time of corrective surgery. Individual muscle fibers were classified as slow-twitch-oxidative (SO), fast-twitch-oxidative-glycolytic (FOG), or fast-twitch-glycolytic (FG) based on staining characteristics using a battery of histochemical procedures. Most patients had normal tissue, although there were considerable differences in size and distribution of the three fiber types. Generally, SO fibers were the largest and most prevalent type of fiber. Two individuals, however, demonstrated evidence of muscle pathology that primarily affected the FG fiber population. Histochemical evidence of muscle pathology has not previously been reported in patients with VME, and the pattern of SO dominance observed in these patients may be different from the distribution that would be seen in the masseter of a person free of craniofacial deformities.
AB - This study was designed to examine the morphologic properties of the masseter muscle in individuals with vertical maxillary excess (VME). The deep surface of the anterior aspect of the superficial masseter was biopsied in nine patients at the time of corrective surgery. Individual muscle fibers were classified as slow-twitch-oxidative (SO), fast-twitch-oxidative-glycolytic (FOG), or fast-twitch-glycolytic (FG) based on staining characteristics using a battery of histochemical procedures. Most patients had normal tissue, although there were considerable differences in size and distribution of the three fiber types. Generally, SO fibers were the largest and most prevalent type of fiber. Two individuals, however, demonstrated evidence of muscle pathology that primarily affected the FG fiber population. Histochemical evidence of muscle pathology has not previously been reported in patients with VME, and the pattern of SO dominance observed in these patients may be different from the distribution that would be seen in the masseter of a person free of craniofacial deformities.
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U2 - 10.1016/0278-2391(84)90315-X
DO - 10.1016/0278-2391(84)90315-X
M3 - Article
C2 - 6229616
AN - SCOPUS:0021339086
SN - 0278-2391
VL - 42
SP - 75
EP - 83
JO - Journal of Oral and Maxillofacial Surgery
JF - Journal of Oral and Maxillofacial Surgery
IS - 2
ER -