Maddalone M, Gagliani M
Restorative & Endodontic Department, School of Dentistry, University of Milan, Milan, Italy.
Int Endod J. 2003 Mar;36(3):193-8. doi: 10.1046/j.1365-2591.2003.00642.x.
To monitor the outcome of periradicular surgery in a group of teeth treated with microsurgical technology and ultrasonic root-end preparation.
One hundred and twenty-eight teeth with failed conventional root canal treatment were included. The surgical procedure was completed using ultrasonic retrotips and a zinc oxide-EBA (Super Seal, Ogna Pharmaceuticals. Milan, Italy)-reinforced material was used to seal the root end cavities. Lesions were examined radiologically at 1. 3. 6. 12, 24 and 36-month intervals. Radiographs were independently analysed according to a previously published classification.
Eight teeth were extracted due to fracture or perforations undetected radiologically: these cases were excluded from the study. Of the 120 teeth examined. the overall success rate was 92.5%; 94 healed with complete bone filling of the surgical cavity, 17 were considered to have healed by apical scar formation, four demonstrated uncertain healing and five were considered failures. Eighty of 120 teeth examined had successfully healed from a radiological point of view within 12 months. No differences in outcome occurred between anterior, premolar and molar teeth. Although all failures occurred in teeth with posts, no statistically significant difference was noted (Mann-Whitney U-test, P = 0.37).
Modern surgical endodontic procedures associated and ERA (Super Seal, Ogna Pharmaceuticals, Milan, Italy) root end fillings were successful over 3 years in 92.5% of cases.
监测一组采用显微外科技术和超声根尖预备治疗的牙齿根尖周手术的结果。
纳入128颗常规根管治疗失败的牙齿。使用超声倒充钻完成手术操作，并使用氧化锌 - EBA（Super Seal，奥尼亚制药公司，意大利米兰）增强材料封闭根尖腔。在术后1、3、6、12、24和36个月进行影像学检查。根据先前发表的分类方法对X线片进行独立分析。
8颗牙齿因放射学未检测到的骨折或穿孔而被拔除：这些病例被排除在研究之外。在检查的120颗牙齿中，总体成功率为92.5%；94颗牙齿手术腔完全被骨填充愈合，17颗被认为通过根尖瘢痕形成愈合，4颗愈合情况不确定，5颗被认为治疗失败。从放射学角度来看，120颗检查的牙齿中有80颗在12个月内成功愈合。前牙、前磨牙和磨牙的治疗结果没有差异。尽管所有失败病例均发生在有桩的牙齿中，但未观察到统计学上的显著差异（曼 - 惠特尼U检验，P = 0.37）。
现代外科根管治疗联合ERA（Super Seal，奥尼亚制药公司，意大利米兰）根尖充填在3年时间里92.5%的病例取得成功。
