上颌天然牙列与全口义齿前牙排列位置的测量分析

The Measurement and Analysis on the Arranging of Maxillary Anterior Teeth of Dentulous and Edentulous Jaws

目的:调研上颌全口义齿前牙排列位置的现状,以指导临床工作。方法:为60例天然牙列人群及57例上颌总义齿患者制取上颌牙列模型,各组按性别分别测量切牙乳突中点到1|1唇面距离(IEP)、到3|3牙尖连线距离(Dip-c),并将测量结果用SPSS14.0软件统计分析。结果:60例天然牙列测量结果:IEP为(8.96±1.24)mm,Dip-c为(-0.20±1.12)mm;57例上颌全口义齿测量结果:IEP为(6.33±2.02)mm,Dip-c为(2.19±1.31)mm,两组内所测数据无性别间差异,但两组间存在显著差异。结论:天然牙列中上颌前牙与切牙乳突存在较恒定的位置关系,但全口义齿较天然牙列中切牙距切牙乳突的距离明显减小。

Objective：To evaluate the relationship between the incisive papilla and maxillary anterior teeth of dentulous and edentulous jaws,in order to give some clinical guidance for teeth arrangement of complete denture.Methods：Selecting 60 adult maxillary dentulous casts with normal occlusion,and 57 upper complete denture models of edentulous patients repaired in our stomatological hospital.The relationship between incisive papilla and maxillary anterior teeth were measured,including the distance between incisor and papilla（IEP）,intercanine line and papilla（Dip-c）.All data were input into SPSS14.0system and were analyzed with statistic analysis between different groups and sex.Results：In the dentulous group,the average IEP distance was（8.96±1.24）mm and the average Dip-cdistance was（-0.20±1.12）mm.In the edentulous group,The average IEP distance was（6.33±2.02）mm and the average Dip-cdistance was（2.19±1.31）mm.No difference was found for different sex in each group（P〈0.05）.The distances between the two groups had significant differences（P〈0.05）.Conclusion：The relationship between incisive papilla and maxillary anterior teeth was constant in the dentulous group.But these values are less for artificial teeth than natural dentitions.