Conclusion: Tooth extrusion method with new method is an effective method for anterior teeth with crown-root fracture.
结论：使用改进的固定矫正器进行牙根牙合向牵引治疗前牙冠根折的方法有效可行。
Objective To observe the clinical efficacy of endodontic-orthodontic combined treatment for anterior teeth with crown-root fracture.
目的观察牙体牙髓-正畸方法联合处理恒上前牙冠根折的临床疗效。
Objective:To observe the clinical effect of tooth extrusion with progressive methods for anterior teeth with crown-root fracture.
目的观察牙冠延长术治疗断缘位于龈下的冠根联合折断牙的临床效果。
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