DT Light——Post纤维桩修复残根、残冠的疗效分析

目的:评价DTLight-Post纤维桩在残根、残冠修复治疗中的作用。方法:选择临床修复病例193例、287颗前牙及前磨牙,其中残冠195例,残根92例,行完善的根管治疗后,用DT Light-Post纤维桩系统恢复桩核后作全瓷冠修复,采用SAS6.12软件包对残根、残冠修复结果作χ2检验。结果:随访1～3a,195例残冠修复中,6例发生冠连桩核脱落;92例残根修复中,17例发生冠连桩核脱落,脱落病例改用化学固化黏结剂粘固后1a内未再脱落。其余修复体完好,未发生桩折或牙折。总治疗成功率为91.98%,残根脱落率显著高于残冠,Ρ=0.001。结论:纤维桩是一种较为理想的桩核修复方法,其适应证的选择及黏结剂种类和黏结技术对治疗成功率有明显影响。

DT Light——Post system for prosthodontic treatment of residual root and crown teeth

PURPOSE:To evaluate the clinical effect of DT Light-Post system in prosthodontic treatment for the residual root and crown.METHODS:193 patients with 287 anterior teeth and premolars were involved,including 195 residual crowns and 92 residual roots.After complete root canal therapy,the teeth were treated with DT Light-Post system and all-ceramic crowns.Results of residual crowns and residual roots were analyzed statistically with SAS 6.12 software package for Chi-square test.RESULTS:After observation for 1 to 3 years,6 crowns with core and post were lost in 195 residual crowns,and 17 lost in 92 residual roots.And all the lost cases were cemented with chemo-setting adhesives,and none of them lost again in one year.On the other hand,no post or root broken were found.The total successful rate was 91.98%.And the lost rate of crowns in patients with residual crowns was significantly lower than those with residual root(P=0.001).CONCLUSION:Fiber post is an idea method for post-and-core restorations,the successful rate is affected significantly by the indication,the type of adhesion and the adhesive technique.