The oral cavity houses saliva, which is a reservoir for SARS-CoV-2. Knowledge of oral pathologies that may arise during COVID-19 is significant, as it can prevent severe health problems from developing in other parts of the human body. Therefore, the author set out to describe oral diseases associated with COVID-19. The documentary analysis method was used, and a total of 30 bibliographies were reviewed. Patients who tested positive for COVID-19 presented with impaired salivary gland function, taste and smell sensations, oral mucosal integrity, herpetic lesions, and candidiasis. If surveillance and control of oral pathologies associated with the presence of COVID-19 are activated, high transmission of the virus and the spread of infections to other anatomical regions of the human body would be prevented, often avoiding serious complications in patients.