Abstract: Abstract：Objective To retrospectively investigate 1500 cases of Doctor-Patient Relationship (DPR), and understand the characteristics of medical disputes of dental pulp disease. Methods The ledger data of 1500 patients treated by a chief physician for a period of time were put into Exell database and were divided into three kinds of DPR (satisfaction, normal and dispute) ，then the related factors of chi square test, also the "dispute" of the cases were analyzed. Results In 1500 patients, the satisfaction，normal and dispute were 4.13%, 94.14% and 1.73% respectively. Chi square test results indicated that DPR had nothing to do with gender and the way of payment (P > 0.05), but related to age, DF(Dental Fear), treatment methods and other repair therapy such as fiber pile or CAD/CAM（Computer Aided Design/ Computer Aided Manufacture）. Women (21 cases) were in the majority of the disputes(26 cases), so were RCT（Root Canal Treatment） patients (21 cases). 6 cases of complaints, which were involved in the handling of economic compensation.　Conclusion Among the dental pulp disease patients, the 41-65 year-old female patients who need RCT have greater likelihood of medical dispute.Results:In 1500 patients, the satisfaction,normal and dispute were 4.13%, 94.14% and 1.73% respectively. Chi square test results indicate that DPR has nothing to do with both gender and the cost of payment (P > 0.05), but relates to age, DF, treatment methods and other auxiliary repair such as fiber pile or CAD/CAM . The women (21 cases)is in the majority of the dispute(26 cases), RCT patients are also (21 cases).The expression of the form of complaints in 20 cases, 6 cases of complaints, complaints are involved in the handling of economic compensation.Conclusion: In the dental pulp disease patients, the female, 41-65 years old patients or people that had needed RCT had greater likelihood of medical dispute.

Key words: Doctor-patient relationship, Retrospective study, Dental pulp disease