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目的在牙冠延长术中行牙根重塑,减少牙周组织的去除,恢复生物学宽度。方法对9颗上前牙残根翻瓣后少量去骨并行牙根重塑,观察断缘至骨嵴顶的距离变化,检查术前、术后1周、术后6周、术后12个月牙周各项指标、断缘至龈缘的距离,并进行临床疗效评定。结果术后1周牙龈略水肿,术后6周牙龈恢复并保持稳定;术后12个月牙龈健康、龈缘协调,修复体稳定。结论在牙冠延长术中行牙根重塑,相对扩大了牙冠延长术的适应证。
Objective To perform root reshaping during crown extension to reduce periodontal tissue removal and restore biological width. Methods A small amount of root remodeling was performed after a small amount of root remnant flap on the anterior root of 9 anterior teeth. The distance between the edge and the crest of the ridge was observed. Preoperative and postoperative 1 week, postoperative 6 weeks, postoperative 12 months Periodontal indicators, the distance from the margin to the gingival margin, and clinical efficacy assessment. Results Gingival edema occurred 1 week after operation. The gums recovered and remained stable 6 weeks after operation. At 12 months after operation, the gums were healthy and the gingival margin was coordinated and the prosthesis was stable. Conclusions Dental root remodeling during crown extension has relatively expanded the indications of crown extension.