三种制作上颌前牙桩核方法的临床效果比较  

Comparative study of making casting post on the anterior teeth by three methods

作　　者：刘林娟[1] 许建辉[1] 张怀勤[2] 

机构地区：[1]江苏大学附属医院口腔科,镇江212001 [2]江苏省口腔医院急诊综合科

出　　处：《齐齐哈尔医学院学报》2011年第1期12-13,共2页Journal of Qiqihar Medical University

摘　　要：目的比较3种制作前牙金属铸造桩核方法的临床效果。方法选取本院修复科门诊病例58例,共75颗根管治疗后的上颌前牙随机分成三组,分别用嵌体蜡口内直接法、琼脂-藻酸盐印模口外间接法、硅橡胶印模口外间接法制作铸造桩核,对这三组桩核的就位性、密合度及固位性几方面进行比较。结果硅橡胶印模组制作的桩核24颗成功(96%),琼脂-藻酸盐印模组23颗成功(92%),嵌体蜡组17颗成功(68%),经χ2检验前两组无统计学意义,前两组与嵌体蜡组均有统计学差异。结论采用硅橡胶印模法和琼脂-藻酸盐印模法制作上颌前牙铸造桩核的临床效果优于嵌体蜡法,值得推广应用。Objective To compare the clinical effect of three methods to make casting post impression.Methods 58 patients（75 anterior teeth） were adopted in three groups to make casting post on the anterior teeth by three methods,and checked them separately by emplacement,compactness and retention as to compare the differences of their compatibility.Results 24 nuts（96%） were successful in silicon-rubber group;23 nuts（92%） were successful in agar-alginate impression group;while 17 nuts（68%） were successful in inlay-wax group.There were no significant difference between the first two groups（P〈0.05）,while the first two groups both had statistics significance with the third group（P〉0.05）.Conclusions The clinical effect of casting post by silicon rubber and agar-alginate are better than that of inlay-wax method,and they should be applied extensively.

关 键 词：铸造桩核 硅橡胶 琼脂 嵌体蜡 

分 类 号：R783.1[医药卫生—口腔医学]