替牙期前牙反患者口周力分布研究  

Study of Perioral Force Exerted on the Teeth in Preadolescent Children with Anterior Crossbite

作　　者：张新海[1] 刘国勤[1] 赵海军[1] 陈骏[1] 张庆福[1] 陈铁楼[1] 

机构地区：[1]海军411医院口腔专科中心,上海200081

出　　处：《生物医学工程学杂志》2011年第1期76-80,共5页Journal of Biomedical Engineering

基　　金：上海市科技发展基金科技公关类资助项目(024119092)

摘　　要：临床选取30名替牙期前牙反患者,年龄8～12岁,平均年龄10.8岁,其中男性15名,女性15名,测量其姿势位时上、下中切牙区唇、舌侧,左右上、下第一前磨牙区颊舌侧,左右上、下第一磨牙区颊舌侧口周力值,分析姿势位时受试者牙弓周围口周力的分布情况及规律。研究结果表明:牙弓左右两侧的口周力的分布具有对称性;口周力的分布不存在性别差异;口周力的分布以前磨牙区和磨牙区最大;唇侧口周力值大于舌侧口周力值;下切牙区舌侧口周力存在负值现象;口周力的大小与错合类型是相关的,牙齿的位置决定了口周力值的大小。从以上结果可以看出,作用于牙齿上的口周力仅是保持牙齿位置稳定的因素之一,尚有一些其它因素有待进一步研究。30 preadolescent children with anterior crossbite were selected for the present study.Among them 15 were male and 15 children were female.Their age ranged from 8 to 12 years.The mean age was 10.8 years.Their perioral forces were measured in the areas as following： the labial and lingual sides of mandibular and maxillar central incisors,the first premolars and molars of both sides.After analysis of the results,some conclusions were drawn as the following： the distribution of the perioral force of bilateral arch was symmetric,and there were no significient differences between genders.The values of the perioral force in the premolar and molar area were the largest.When the children were in their nature head position,the perioral force values of labial side were larger than those on the lingual side.On the lingual side of mandibular incisors negative values were found.The perioral force correlated with malocclusion.The position of the teeth decides the value of the perioral force.It has been well concluded that the forces exerted on the teeth were not the only factor that influenced teeth position.There are also other factors influencing the teeth poison.This needs further study.

关 键 词：替牙期 前牙反 口周力 错畸形 姿势位 

分 类 号：R783.5[医药卫生—口腔医学]