CHANGES IN MAXIMUM BITE FORCE RELATED TO EXTENSION OF THE HEAD

被引：31

作者：

HELLSING, E

HAGBERG, C

机构：

[1] Department of Orthodontics, Karolinska Institutet, Huddinge

来源：

EUROPEAN JOURNAL OF ORTHODONTICS | 1990年 / 12卷 / 02期

关键词：

D O I：

10.1093/ejo/12.2.148

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The maximum bite force and position of the hyoid bone during natural and extended head posture were studied in 15 adults. All participants had normal occlusions and full dentitions. In addition, there were no signs or symptoms of craniomandibular disorders. The bite force was measured with a bite force sensor placed between the first molars. Six registrations of gradually increasing bite force up to a maximum were made with randomized natural and extended head postures. With one exception, the mean maximum bite force value was found to be higher for every subject with extended head posture compared to natural head posture. The sample mean was 271.6 Newton in natural head posture and 321.5 Newton with 20 degrees extension. With changed head posture, the cephalometric measurements pointed towards a changed position of the hyoid bone in relation to the mandible and pharyngeal airway. The cephalometric changes in the position of the hyoid bone could be due to a changed interplay between the elevator and depressor muscle groups. This was one factor which could have influenced the registered maximum bite force. © 1990 European Orthodontic Society.

引用

页码：148 / 153

页数：6

共 27 条

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