Periodontitis Associated With Worse COVID-19 Outcomes

Written By :  Dr. Shravani Dali
Medically Reviewed By :  Dr. Kamal Kant Kohli
Published On 2023-05-18 14:30 GMT   |   Update On 2023-05-19 07:19 GMT
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Periodontitis is a highly prevalent infectious-inflammatory oral disease . Periodontal pockets serve as a reservoir of microorganisms, including viruses, fungi, and bacteria that can enter the bloodstream and/or be aspirated.

Researchers have found in a new study that Periodontitis was associated With Worse COVID-19 Outcomes.

The new study has been published in the Odontology.

Periodontitis and coronavirus disease (COVID-19) share risk factors and activate similar immunopathological pathways, intensifying systemic inflammation. This study investigated the clinical, immunological and microbiological parameters in individuals with COVID-19 and controls, exploring whether periodontitis-driven inflammation contributes to worsening COVID-19 endpoints.

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Case (positive RT-PCR for SARS-CoV-2) and control (negative RT-PCR) individuals underwent clinical and periodontal assessments. Salivary levels of TNF-α, IL-6, IL-1β, IL-10, OPG, RANKL, neutrophil extracellular traps, and subgingival biofilm were analyzed at two timepoints. Data on COVID-19-related outcomes and comorbidity information were evaluated from medical records.

Results

Ninety-nine cases of COVID-19 and 182 controls were included for analysis. Periodontitis was associated with more hospitalization (p = 0.009), more days in the intensive care unit (ICU) (p = 0.042), admission to the semi-ICU (p = 0.047), and greater need for oxygen therapy (p = 0.042). After adjustment for confounders, periodontitis resulted in a 1.13-fold increase in the chance of hospitalization. Salivary IL-6 levels (p = 0.010) were increased in individuals with COVID-19 and periodontitis. Periodontitis was associated with increased RANKL and IL-1β after COVID-19. No significant changes were observed in the bacterial loads of the periodontopathogens Porphyromona gingivalis, Aggregatibacter actinomycetemcomitans, Tanerella forsythia, and Treponema denticola.

Periodontitis was associated with worse COVID-19 outcomes, suggesting the relevance of periodontal care to reduce the burden of overall inflammation. Understanding the crosstalk between SARS-CoV-2 infection and chronic conditions such as periodontitis that can influence disease outcome is important to potentially prevent complications of COVID-19.

Reference:

Bemquerer, L.M., Oliveira, S.R., de Arruda, J.A.A. et al. Clinical, immunological, and microbiological analysis of the association between periodontitis and COVID-19: a case–control study. Odontology (2023). https://doi.org/10.1007/s10266-023-00811-2

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Article Source : Odontology

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