摘要
目的:调查研究牙齿磨耗与牙列缺损的关系及牙齿磨耗的影响因素,为牙齿磨耗的预防与治疗提供依据。方法:通过问卷调查和临床检查收集数据,结合牙科功能等级分类系统,采用Smith和Knight牙齿磨耗指数TWI对257名修复患者5 930个牙的磨耗程度进行检查,通过多元线性回归分析及t检验分析牙齿磨耗与牙列缺损之间的关系,以揭示影响牙齿磨耗的相关因素。结果:经多元线性回归分析,在上下颌有≥10个牙的牙列中,前牙、前磨牙功能面磨耗程度显著低于上下颌<10个牙的牙列(P<0.05,B<0),磨牙的功能面磨耗无显著差异;在双侧磨牙区至少有1个咬合对数的牙列中,前磨牙功能面磨耗显著低于双侧磨牙区无咬合对数的牙列(P<0.05,B<0)。t检验结果显示,男性患者磨牙功能面磨耗的均数显著高于女性(P<0.05),而前牙与前磨牙功能面磨耗的均数比较无显著性差异(P>0.05)。结论:牙齿磨耗与口内余留牙数目及咬合对数密切相关,男性牙齿磨耗比女性严重。
AIM： To investigate the relationship between tooth wear and dentition defect. METHODS：The datas were collected by a questionnaire survey conducted in 257 patients with 5930 teeth. The teeth were examined ac- cording to the Smith and Knight tooth wear index （TWI）. The dentition defects of the patients were recorded by the hi- erarchical dental functional classification system. Then multiple linear regression was applied to analyze the relationship between tooth wear and dentition defect classification. The t test was applied to analyse the influence of gender on tooth wear. RESULTS： In patients with teeth ≥ 10 in both upper and lower jaws the anterior teeth and premolars showed lower TWI （ P 〈 0.05, B 〈 0） than in those with teeth ≥ 10 in both jaws. In patients with occluding pairs of molars ≥ 1 at both side of the dentition, premolars showed lower TWI （ P 〈 0.05, B 〈 0 ） than in those without occluding pair of molars at both sides of the dentition. In the male patients TWI was higher on molars than in the females（P 〈0.05）, no difference of TWI was found on anterior teeth and premolars between the males and females （ P 〉 0.05 ）. CONCLU- SION ： Tooth wear is related with the number of remained teeth and occluding pairs in the dentition. The males have se-verer tooth wear than the females.
出处
《牙体牙髓牙周病学杂志》
CAS
北大核心
2013年第2期132-135,128,共5页
Chinese Journal of Conservative Dentistry
关键词
牙齿磨耗
牙列缺损
牙齿磨耗指数
牙科功能等级分类系统
tooth wear
dentition defect
tooth wear index（TWI）
hierarchical dental functional classificationsystem
作者简介
蒙萌（1987-），男，汉族，陕西咸阳人。
通讯作者：马楚凡，E-mail：machufan@fmmu．edu．cn
硕士生（导师：张少锋）张少锋，E-mail：sfzhang@fmmu．edu．cn
