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目的观察纤维桩在磨牙残根残冠修复中的临床效果。方法选择行完善根管治疗后、无法用直接充填方法修复的磨牙81颗。其中,实验组41颗磨牙残根残冠,采用纤维树脂桩核;对照组40颗,采用分体插销式铸造桩。两组均采用纯钛全冠修复。记录每颗从开始根管预备到桩核黏结完成的时间。通过X线对比两组桩核与根管的密和情况。1年后,随访、观察两组的临床疗效。结果纤维树脂桩核组平均用时31min;铸造桩核组取桩戴桩两次平均用时67min。X线片显示:桩核与根管侧壁和冠方的结合,两组均紧密;铸造桩核的桩末端与保留的牙胶尖的间隙,大于纤维桩的桩末端与保留的牙胶尖之间的间隙。一年后随访发现,除铸造桩一颗脱落外,其余临床修复效果良好。结论采用纤维桩核冠修复磨牙残根残冠,具有能够最大限度地保留牙体组织、制作简单、节省临床操作时间、患者就诊次数少、疗效好等优点,值得在临床上推广应用。
Objective To observe the clinical effect of fiber posts in the restoration of molars residual crown. Method selection After perfecting the root canal treatment, there are 81 molars which can not be repaired by the direct filling method. Among them, experimental group 41 molars residual roots, using fiber resin post core; control group 40, the use of split pin casting pile. Two groups were used titanium crown restoration. Record the time from the beginning of root canal preparation to the completion of post-core bonding. X-ray contrast between two sets of post-core and root canal close and the situation. One year later, follow-up, observe the clinical efficacy of the two groups. Results The average length of the fiber-resin post-core group was 31min. The cast-in-pile core group took the pile for two times and averaged 67min. The X-ray films showed that the combination of post-core and root canal lateral wall and crown square were close in both groups; the gap between the end of casting pile core and the remaining gutta-percha point was larger than the end of pile and the remaining gutta-percha point The gap between. A year after the follow-up found that, in addition to casting a pile off, the rest of the clinical repair effect is good. Conclusion The treatment of residual crown of residual tooth root with fiber post and core crown has the advantages of being able to retain the tooth tissue to a maximum extent, making simple operation, saving the time of clinical operation, reducing the frequency of patient visits and having good curative effect. It is worth popularizing and applying in clinical practice.