不同桩核在残根残冠修复中的疗效比较

Clinical Effect Comparison of Several Different Post-Core Materials in the Residual Crown and Root Repair

目的:观察成品螺纹桩、铸造钴铬合金桩核、纤维桩修复残根残冠的临床应用效果。方法:将90例患者90颗残根残冠,随机分成3组,分别采用A组成品螺纹桩,B组铸造钴铬合金桩核,C组纤维桩进行修复,并随诊18个月后,比较3组患者治疗后的成功率。结果:3组患者经过治疗后,成品螺纹桩组的成功率为73.33%,铸造钴铬合金桩核组的成功率为60.00%,纤维桩组的成功率为96.67%,三组差异有统计学意义(P<0.005)。结论:与成品螺纹桩和铸造钴铬合金桩核相比,纤维桩具有更好的粘结性及抗折能力。

Objective： To study the clinical effect of prefabricated screw post,cast CoCr（chromium-cobalt） alloy post-core and fiber post in the restoration of residual crown and root.Methods： 90 cases of patients（90 teeth） in our hospital were divided into three groups randomly.Each group was restored by prefabricated screw post,cast CoCr alloy post-core and fiber post,respectively.After 18 months,all patients were examined and the success rates were compared.Results： The effects of the three groups were evaluated after the treatment.The success of the fiber post group was 96.67%,which was higher those that of the prefabricated screw post group（73.33%） and the cast CoCr alloy post-core group（60.00%）.It showed significant difference（P〈0.005）.Conclusions： Compared with the prefabricated screw post and the cast CoCr alloy post-core,the fiber post had better bond strength and fracture resistance.