Abstract
Coronavirus disease 2019 (COVID-19) has spread exponentially across the world. The typical manifestations of COVID-19 include fever, dry cough, headache and fatigue. However, atypical presentations of COVID-19 are being increasingly reported. Recently, a number of studies have recognized various mucocutaneous manifestations associated with COVID-19. This study sought to summarize the available literature and provide an overview of the potential orofacial manifestations of COVID-19. An online literature search in the PubMed and Scopus databases was conducted to retrieve the relevant studies published up to July 2020. Original studies published in English that reported orofacial manifestations in patients with laboratory-confirmed COVID-19 were included; this yielded 16 articles involving 25 COVID-19-positive patients. The results showed a marked heterogeneity in COVID-19-associated orofacial manifestations. The most common orofacial manifestations were ulcerative lesions, vesiculobullous/macular lesions, and acute sialadentitis of the parotid gland (parotitis). In four cases, oral manifestations were the first signs of COVID-19. In summary, COVID-19 may cause orofacial manifestations that might be the initial features in several cases. However, the occurrence of orofacial manifestations in COVID-19 seems to be underreported, mainly due to the lack of oral examination of patients with suspected and/or confirmed COVID-19. Oral examination of all suspected and confirmed COVID-19 cases is crucial for better understanding and documenting COVID-19-associated orofacial manifestations.
Highlights
A number of reports have documented various orofacial manifestations associated with COVID-19.7,8,10,11 to the best of our knowledge, no attempt has been made to review the available literature in this context
Patients with COVID-19 manifest with certain orofacial features that may help clinicians identify suspected cases. These include oral ulcers, vesiculobullous lesions, erythematous macules, and acute parotitis. It seems that oral manifestations of this disease are underreported, mainly due to it being a novel disease with no more than 9 months elapsing since the first case was reported and the lack of oral examination of patients with COVID-19 owing to the lockdown and the carelessness of patients regarding other manifestations that might be less serious compared to the typical
A thorough oral examination should be routinely performed for all suspected COVID-19 cases
Summary
This review aimed to summarize the literature and provide an overview of COVID-19-associated orofacial features
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