Comparison of superficial masseter muscle morphology between adult high-angle and low-angle facial skeletal types
- VernacularTitle:成人高低角骨面型浅层咬肌不同功能位置形态的比较
- Author:
Gao HUI
;
Xiao DANNA
;
Zhao ZHIHE
- Publication Type:Journal Article
- Keywords:
Adult;
Facial type;
Masseter muscle
- From:
Journal of Practical Stomatology
2000;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the differences of the superficial masseter muscle morphology characteristics between adult high-angle and low-angle facial skeletal types. Methods: The subjects consisted of 37 yellow race adults,17 of them with high-angle facial skeletal type and 20 with low-angle. Ultrasound scanning was used to measure the perimeter, area, width, thickness, and length of masseter muscle. All the items were measured under relaxed, maximal clenching and maximal protrusive mandibular position.Results:①In the various mandibular positions, the masseter muscle size of adults with high-angle facial skeletal type was smaller than that of those with low-angle.②Except for the changes of width from the relaxed to maximal clenching position and from the relaxed to maximal protrusive position(P0.05).③Stature and weight influenced the size of the masseter muscle.Conclusion:The masseter muscle size of adult with high-angle facial skeletal type is smaller than that of those with low-angle.
