The clinical study of root canal therapy by ProTaper rotary and manual files in primary molars
Objective:Study the clinical effect of root canal therapy by ProTaper rotary and manual files in primary malors.Method:Forty chronic pulpitis patients and forty chronic periapical periodontitis patients were elected in this investigation,aged from four to eight years old.They were randomly divided into test group and control group.The operating time, the degree of the pain and the quality of the root canal obturation were analyzed.Result:The operating time of ProTaper rotary files was shorter than that of barbed brrach and root canal preparation(P 0.01).It had less pain in pulpectomy(P 0.01).There was no statistical deffrence in the quality of root canal filling between ProTaper rotary files and manual files(P 0.05).Conclusion:It indicated ProTaper rotary files can improve the efficacy of root canal therapy in primary molars and get less pain in pulp extirpation.