55787颗成品塑料牙的使用情况分析

The statistical analysis for the use of the 55 787 finished resin teeth

目的了解各牙位成品塑料牙的使用情况,为成品塑料牙生产厂家及使用单位提供参考。方法对重庆医科大学附属口腔医院修复工艺科2006年1月—2008年12月成品塑料牙的使用情况按牙位进行统计分析。结果 1)在使用的55787颗成品塑料牙中,D6的使用率最高,占5.31%,D3的使用率最低,占1.94%。2)除上颌尖牙和下颌侧切牙外,其余同名牙使用率的差异无统计学意义(P>0.05)。3)成品塑料牙的使用量B区多于A区,上颌多于下颌(P<0.05)。4)单颌全口和全口义齿使用的成品塑料牙约占总数的1/3。5)除去单颌全口和全口义齿使用的情况,下颌左右侧中切牙同时使用的频率最高,占81.46%,上颌左右侧尖牙同时使用的频率最低,占43.26%。结论不同牙位成品塑料牙的使用频率有较大差异,建议生产厂家应按比例进行生产,使用单位应按比例进行购买。

Objective To analyze the use situation of finished resin teeth for the different location,and to provide reference for manufacturers of finished resin teeth and all the buyers.Methods To analyze the use situation of finished resin teeth in the Dental Laboratory of the Affiliated Hospital of Stomatology of Chongqing Medical University from January 2006 to December 2008 by using statistic methods.Results During the use of 55 787 finished resin teeth,the study found some rules.1）The top use of finished resin teeth was D6 with the percentage of 5.31%,and the lowest use of finished resin teeth was D3 with the percentage of 1.94%.2）Except the maxillary canines and the mandibular lateral incisors,there was no significant difference between the usage of other same name finished resin teeth（P〉0.05）.3）Among all finished resin teeth,the usage of section B exceeded section A,and the usage of maxillary finished resin teeth exceeded mandibular finished resin teeth（P〈0.05）.4）The use of the complete denture and single complete denture was about 1/3 of the total usage of finished resin teeth.5）Except the use situation of complete denture and single complete denture,the frequency of simultaneously using mandibular left and right central incisors was the most with the percentage of 81.46%,for the frequency of simultaneously using maxillary left and right canines was 43.26% of the total,which was the lowest.Conclusion There is significant difference in the use frequency of finished resin teeth for different location.For such reason,the manufacturers should produce finished resin teeth pro rata as well as the buyers for their purchase.