Application of Retrograde Filling in Periapical Periodontitis Patients

HUANG Wen-rong; GUAN Yu; LI Chang-rong

Abstract：Objective:To investigate the clinical application value of the retrograde filling in periapical periodontitis patients.Method:60 teeth with periapical periodontitis were randomly divided into filling group and curettage group two groups which were unable to use conventional root canal therapy or poor efficacy by its treatment,each group of 30 teeth,respectively treated by retrograde filling and periapical curettage with microscope,the postoperative X ray optical film could be judged immediately pour filling effect,and after 1 year,2 years follow-up,according to clinical examination,X ray results and patient’s feeling to evaluated the comprehensive effect.Result:A total of 53 teeth were follow up.Pour filling group of 1 year and 2 years of success rates were 81%(22/27), 85%(22/26);curettage group of 1 year and 2 years of successful rate were 50%(13/26),39%(9/23).Pour filling group of 1 years and 2 years of successful rate was higher than curettage group(1 years of successful rate of χ2=5.8,P<0.05;2 years of successful rate of χ2=10.0,P<0.05).Conclusion:The application of retrograde filling operation for unable to use conventional root canal therapy or poor efficacy of periapical periodontitis patients can achieve good result.