Dor pós-operatória em Endodontia: revisão de literatura

Introduction: Endodontics is a branch of dentistry based on the health of the root canal system, promoting cleaning of these, often associated with postoperative pain events. Several factors have been suggested as propitiators of the symptom. Objective: This paper aims to gather data from the literature that can explain the occurrence and intensity of postoperative pain symptomatology in endodontics and which variables may be involved in this process. Material and Method: We used 43 scientific articles from the databases: SciELO, MEDLINE, Lilacs, PubMed, BBO and BVS, found in Portuguese, English and Spanish, using the descriptors: Post Operative Pain, Endodontics, Dental Pulp; with period restriction from 2009 to 2019. Results: Post-operative endodontic pain is reported in approximately half of the cases, with preoperative pain being a strongly associated factor. The number of clinical sessions did not exert differences in pain, as well as the use of different instrumentation techniques evaluated. Vital pulps exert a higher incidence of this symptom. Enlargement of foramen was shown to be more associated with pain, while the execution of foraminal patency showed the capacity of not producing it. Calcium hydroxide, chlorhexidine and antibiotic paste showed important intracanal medications, as well as sodium hypochlorite, chlorhexidine and ethylenediaminetetraacetin acid werw satisfactory irrigating solutions. Conclusion: All variables showed some relationship with postoperative pain in endodontics, however they did not express themselves expressively, suggesting that more studies are needed on this topic.