外伤前牙正畸助萌术后纤维桩的应用评价

目的评价外伤前牙正畸助萌术后纤维桩的应用效果。方法选择10例因外伤导致的单个上前牙冠折至龈缘的患者，行完善的根管治疗后，采用正畸助萌术延长临床牙冠长度后再应用纤维桩系统进行核桩修复及烤瓷冠修复。患者每6个月复诊1次，通过临床检查和X线检查，评估纤维桩核的临床应用效果。结果随访12～30个月，10例患者的基牙无松动，未发生根折，纤维桩树脂核桩冠完好，无松动，无脱落，牙龈组织健康，牙槽骨无吸收，骨硬板连续一致。结论对于外伤所致的上前牙冠折至龈下的病例，采用正畸助萌术和纤维桩核系统进行桩冠修复是较为理想的选择。

Evaluation on Application of Fiber Post to Fractured Anterior Teeth after Orthodontic Forced Eruption

Objective To evaluate the clinical effect of fiber post on the fractured anterior teeth after orthodontic forced eruption. Methods A total of eight servicemen whose maxillary anterior teeth were fractured under gingiva were recruited. After complete root canal therapy, the teeth were treated by orthodontic forced eruption to increase the height of crown. Then, the teeth were treated with fiber post system. During the observation period of 12 -30 months, periodontal condition, radiographic signs and prosthodontic results were recorded. Results According to the 12 - 30 months＇ clinical observation, the restoration was stable, the posts and roots had no dislodgment or fracture, and the periodontal tissue was healthy. Conclusion Orthodontic forced eruption and fiber post system are good treatment to the anterior teeth fractured under gingival.