전치부 반대교합 성인의 저작양상에 관한 연구
Study on masticatory pattern of adult having anterior cross bite
양호, 유형석, 박종진,
소속 상세정보
양호 ( ) - 연세대학교 치과대학 교정학교실
유형석 ( ) - 연세대학교 치과대학 교정학교실
박종진 ( ) - 연세대학교 치과대학 교정학교실
KMID : 0361919970270010035
Abstract
mastication is basically regulated by central pattern regulator(CPG) of brain system target organ output from CPG is modulated by oral sensory feedback.
anterior cross bite pattern infuluence the feedback mechanism and change muscle activity and jaw movement.
.The purpose of.this study was to investigate diffemce anterior cross bite group from normal group. the selected sample groups were 30 normal patient, 30 anterior cross bite patient. EMG and EGN of Biopak system were used for this study
The following results were obtained
1. In resting state of mandible, anterior cross-bite showed the high r muscle activities in all the muscle.(exeeption:left digastric muscle) than normal group.
2. In clenching state,
No significant difference in muscle activities of normal group and anterior cross bite group was noticed 3. In swallowing state
Normal group showed the higher muscle activities in left and right masseter muscle, right posterior temporal muscle.
4. In maximum opening and closing velocity, normal group showed the higher value than anterior cross-bite.
5. In the mean value of the maximum operiing,the maximum anterior-posterior movement from centric-occlusion, the lateral
deviation from centric-occclusion, normal group showed the higher value than anterior cross-bite group.
키워드
전치부 반대교합;muscle activity;jaw movement pattern;anterior cross bite;muscle activity;jaw movement pattern
원문 및 링크아웃 정보
등재저널 정보