A Basic Researchi on Malocclusion and Difunction in Young Generation Sprots

1991年的研究：对2335名初高中男生进行了“青少年错牙合及功能障碍发生率”的调查。结果是，我们发现每个班级都有大约20%的错牙合。其中，挤牙和上牙突频率高，另一侧、间隔弓和牙合频率低。1992年的研究：对4249名初高中男女学生进行了《青少年运动错颌和功能障碍调查问卷》的调查。因此，错颌畸形和颞下颌关节功能障碍中运动损伤的发生率为41.7%。有人说，打橄榄球、足球和冰球是非常危险的。1993年研究：“青少年与运动咬合力研究”进行调查

Research in 1991 : "Malocclusion and Disfunction Frequency in Young" were researched for 2,335, junior and senior high school male students. As a results of that, we could find that each class had about 20% malocclusion. Especially, crowding and upper protrusion had high frequency, the other sede, spaced arch and crossbite were low.Research in 1992 : "A questionnnarie on malocclusion and disfunction in young generation sports" were investigated with 4,249 male and female students in junior and senior high school. As a results of that, sports injury were concerned in malocclusion and TMJ disfunction, and it wad 41.7%. It was suggested that playing rugby, soccer and ice hockey were very risky.Research in 1993 : "Research for occlusion force in young and sports" has been investigating