Association Between Periodontal Health Status and COVID-19 Severity: A Cross-Sectional Study

Area of Science:

• Periodontology
• Infectious Diseases
• Critical Care Medicine

Background:

• Investigating the link between periodontal status and COVID-19 severity is crucial for understanding disease progression.
• Previous research suggests potential associations between oral health and systemic infections, including viral respiratory illnesses.

Purpose of the Study:

• To examine the relationship between clinical periodontal status and COVID-19 severity.
• To assess associations with intensive care unit (ICU) admission and in-hospital mortality among hospitalized COVID-19 patients.

Main Methods:

• A single-center, cross-sectional study involving 44 hospitalized COVID-19 patients.
• Periodontal parameters assessed included probing pocket depth (PPD), clinical attachment level (CAL), bleeding on probing (BoP), and plaque index (PI).
• Univariate logistic regression analyzed factors associated with in-hospital mortality, including periodontal measures and disease severity scores (APACHE II, SOFA).

Main Results:

• Patients admitted to the ICU exhibited significantly higher CAL and PI compared to non-ICU patients.
• Deceased patients had a significantly higher PI than survivors.
• APACHE II score was the sole significant predictor of in-hospital mortality; periodontal parameters (CAL, PI) were not significantly associated with mortality.

Conclusions:

• Poorer periodontal findings (higher CAL, PI) were more prevalent in COVID-19 patients requiring ICU care.
• Periodontal parameters did not demonstrate a statistically significant association with in-hospital mortality in univariate analysis.
• Findings suggest unadjusted associations, limited by study design (cross-sectional, small sample size, lack of multivariable analysis).