COVID-19 and oral implications: An updated review.

The emerging (COVID-19) pandemic is a global health disaster, caused by infection with severe acute respiratory syndrome coronavirus-2. The disease spreads at an alarming rate all over the world and presents a range of disease manifestations including asymptomatic, mild, moderate and severe symptoms irrespective of age groups. Most patients with severe symptoms exhibit underlying comorbidities such as diabetes, hypertension and obesity. Alternatively, there is an existing evidence for an association between oral health and nonoral systemic diseases. Since the oral cavity is a significant pool for many respiratory pathogens, patients with oral infections are more likely to develop pneumonia as a complication. Therefore, we emphasize that the oral hygiene status has a great impact on the recession and progression of oropharyngeal and respiratory diseases.