摘要
目的:观察研究正常人群的下颌运动轨迹及范围。方法:利用K6-Ⅰ评价系统观测记录21例正常人群作最大开口、闭口、最大前伸、左右侧方运动时下颌切点运动轨迹。结果:18例观察对象的开闭口运动轨迹吻合,3例分离;69%人群开口型向左侧偏斜,24%向右侧偏斜;正常人群最大张口度为(44.8±4.4)mm,前伸范围(11.2±6.2)mm,左右侧方运动范围无显著性差异。结论:大多数无症状人群的下颌运动轨迹向左侧偏斜,开闭口轨迹基本吻合,左右运动范围无显著性差异。
Objective： To investigate mandible movement route and range in normal person. Methods： Jaw tracking of 21 individuals was recorded with K6 - 1 system when they performed open, close, protrusion and lateral movement. Results： The track of open and close were inosculated in 18 individuals, and separated in 3 individuals; The mandible deflected to left when opening in 69% individuals, and to right in 24% individuals; The maximal mouth open was （44.8 ± 4.4）mm, protrusion was （ 11.2 ± 6.2） mm, and no significant difference was found in lateral movement. Conclusion： Jaw tracking deflects to left and inosculated when opening and closing for most persons, there is no significant difference between left and right movement.
出处
《口腔医学研究》
CAS
CSCD
2005年第5期552-554,共3页
Journal of Oral Science Research
关键词
正常人群
下颌
运动轨迹
Normal person Mandible Jaw tracking
