牙髓血运重建治疗年轻恒牙根尖周病变的临床观察

Clinical effect of pulp revascularization procedures for the treatment of immature permanent teeth with apical periodontitis

目的观察年轻恒牙进行牙髓血运重建术后牙根发育及根尖周病变愈合情况。方法选取慢性根尖周炎或慢性根尖周炎急性发作的单根管年轻恒牙16例,要求牙根发育Nolla分期7~9期。行牙髓血运重建术治疗,随访观察2年,定期进行临床检查并拍摄X线片观察牙根发育及根尖周病变的愈合情况。结果 16例单根管年轻恒牙牙髓血运重建术后12例牙根继续发育。其中13例在定期复查时牙髓电活力测试结果表现为阳性;16例术后根尖周病变均完全愈合,愈合时间因病变大小而不同,平均愈合时间为4.1个月。疗效评价为成功12例,好转4例,失败0例。结论牙髓血运重建术治疗年轻恒牙根尖周病变,取得良好的治疗效果。

Objective To evaluate the clinical effect of pulp revascularization procedures in the treatment of immature permanent teeth with apical periodontitis. Methods Sixteen immature permanent teeth with apical periodontitis were selected and received pulp revascularization procedures. These teeth were followed up for two years and the clinical effect was evaluated through clinical and radiographic examination. Results Continuation of root development was observed in most of these teeth, although their responses to pulp revascularization procedures varied. The electric pulp vitality test was positive in 13 teeth. All these 16 teeth showed the radiographic evidence of periapical wound healing and clinical evidence of resolution of signs and symptoms. The average healing time of the periapical wound was 4. 1 months. The smaller periapical wounds generally disappeared three months after revasculatization, and the larger ones commonly needed 6-9 months. Twelve teeth were successful, 4 teeth improved. Conclusion The clinical effect of the pulp revascularization procedures in the treatment of immature permanent teeth with apical periodontitis was satisfactory.