Effects of natural extracts in the treatment of oral ulcers: A systematic review of evidence from experimental studies in animals.

Background: To evaluate the clinical and histopathological effects of natural extracts in the treatment of oral ulcers induced in animal experimental models.

Material And Methods: We carried out a search in the Medline, Scopus, WoS and Embase databases from the start of the databases to December 2020, and also made a manual search of the references. The search and selection were carried out by two researchers independently.