MKG를 이용한 과두골절 환자의 하악운동에 관한 연구

A clinical study of mandibular movements of condylar fracture using mandibulokinesiograpy

This is a comparative study of functional mandibular movements between the condyle fracture patients and control group who diagnosed to be normal by Helkimo s clinical dysfunction index. In order to obtaining the datas on functional mandibular movement of condylar fracture patients, the auther investigated 22 condylar fracture patients who visited Chonbuk National University Hospital. All patients and control group were measured on mandibular openign & closing movement, resting position, swallowing, masticatory movements, using of MKG(mandibulokinesiograph) K6 diagnostic system. The obtained results were as follows: 1. The amounts of total and verical mouth opening movements of fracture group was lesser than that of control group(p<0.05) such as 36.01mm, 25.27mm of closed reduction. 27.29mm, 25.69mm of open reduction and 42.82mm, 31.76mm of control groups, especially that of vertical opening movement was lesser(p<0.01), but there was no difference between closed & open reduction groups. 2. In the habitual and maximum opening & closing movement, the maximum and average closing velocity were lesse than that of cntrol group(p<0.01), but there was no difference between the closee & open reduction groups. 3. All mandibular movements of patient group were lesser than that of control group, except the vertical amounts of resting position such as 1.5mm of closed, 1.47mm of open reduction groups. 4. There was no difference between functional movements of patients and control group such as resting position, swallowing, mastication