CHANGES IN ELECTRIC-ACTIVITY OF MASSETER AND TEMPORAL MUSCLES AFTER MANDIBULAR SAGITTAL SPLIT OSTEOTOMY

被引：44

作者：

RAUSTIA, AM ^{[1
]}

OIKARINEN, KS ^{[1
]}

机构：

[1] UNIV OULU,INST DENT,DEPT ORAL & MAXILLOFACIAL SURG,SF-90220 OULU 22,FINLAND

来源：

INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY | 1994年 / 23卷 / 03期

关键词：

ELECTROMYOGRAPHY; ORTHOGNATHIC SURGERY;

D O I：

10.1016/S0901-5027(05)80297-8

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The functioning of the masseter and anterior temporal muscles was assessed by electromyography in 18 patients before orthognathic surgery and 6 weeks, 3 months, 1 year, and 2 years afterwards. Electromyogram (EMG) recordings were made during maximal bite in intercuspal position and chewing. The mean electric activity in the masseter and anterior temporal muscles decreased markedly 6 weeks after surgery but increased clearly for 1 year in both functions. Only a slight further increase was observed at a 2-year follow-up during chewing, but not during maximal bite in intercuspidation. The mean changes in electric activity increased more clearly in patients with hyperplastic mandible than in patients with hypoplastic mandible and in those with long shift of the mandible. The same finding was also more visible in men and older patients than in women and younger patients.

引用

页码：180 / 184

页数：5

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