Relationship between mandibular displacement and body sway in subjects with malocclusion

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The relationship between occlusal condition and the general physical condition of patients is an important topic in clinical orthodontics. Therefore, in this study we measured body sway of malocclusion patients in our orthodontic clinic. Among several measurable parameters which reflect the degree of body sway, we investigated the most reliable parameter by using five adult females. We then investigated how the degree of body sway changes with age in people with malocclusion (80 females). Based on information obtained from cephalograms, the relationship between the amount of mandibular displacement in the anteroposterior or lateral direction and body sway, and their relationship according to different age group, were studied. As a result, the following findings were obtained : 1. Among several measurable parameters which reflect the degree of body sway, the total spectrum length of body sway (T.S.L.B.S.) had the smallest coefficient of variance within the same subject. 2. The T.S.L.B.S. of subjects with malocclusion tended to decrease with age, and among the age groups 6 to 12y, 13 to 18y, and 19 to 35y : older age groups showed a significantly smaller T.S.L.B.S. 3. Although a significant correlation was observed between lateral displacement of the mandible and T.S.L.B.S. in the 13 to 18y age group, no significant correlation was observed in other age groups, nor between antero-posterior displacement of the mandible and T.S.L.B.S. in any of the age groups.
日本矯正歯科学会の論文

Relationship between mandibular displacement and body sway in subjects with malocclusion

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