1·Root canal therapy is a fundamental method of treating pulpal and periapical diseases nowadays.
根管治疗是现今牙髓病和根尖周病的基本治疗方法。
2·Objective To observe the therapeutic effect of Flagyl compound on acute periapical abscess.
目的观察甲硝唑复合剂治疗急性根尖周脓肿的疗效。
3·The result indicated that the irritation of the MPU 03 material on periapical tissue was less than the root canal sealer and Guttapercha( P< 0.01).
结果显示：MPU-03材料对根尖周组织的刺激性明显轻于常规的糊剂牙胶尖充填材料（P＜0．01）。
4·The purpose of this study is to evaluate the treatment result of bone defect caused by periapical disease with autotransplantation of homogeneous bone graft.
本研究的目的是了解自体同源骨移植治疗根尖周病骨缺损的效果。
5·METHODS:120 periapical curettage cases were divided into two groups randomly. 65 cases received therapy of the BIO-OSS bone dust implant.
方法：选取120例根尖周刮治术的患者随机分为2组：实验组65例，术后使用B IO-OSS骨粉充填骨腔；