期刊
JOURNAL OF ORAL REHABILITATION
卷 35, 期 11, 页码 795-800出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2842.2007.01834.x
关键词
forward head posture; condylar position; temporomandibular joint; mandibular rest position; temporomandibular disorders
资金
- Japan Society for the Promotion of Science
There are several reports suggesting that forward head posture is associated with temporomandibular disorders and restraint of mandibular growth, possibly due to mandibular displacement posteriorly. However, there have been few reports in which the condylar position was examined in forward head posture. The purpose of this study was to test the hypothesis that the condyle moves posteriorly in the forward head posture. The condylar position and electromyography from the masseter, temporal and digastric muscles were recorded on 15 healthy male adults at mandibular rest position in the natural head posture and deliberate forward head posture. The condylar position in the deliberate forward head posture was significantly more posterior than that in the natural head posture. The activity of the masseter and digastric muscles in the deliberate forward head posture was slightly increased. These results suggest that the condyle moves posteriorly in subjects with forward head posture.
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