Objective:

To evaluate the association between periodontal health interventions and the risk of first-ever ischemic stroke.

Key Findings:

• Periodontal interventions were associated with a lower likelihood of ischemic stroke.
• Tooth scaling showed the greatest protective effect against ischemic stroke.
• Regular dental care was linked to reduced stroke risk compared to episodic or no care.
• Higher toothbrushing frequency correlated with lower stroke risk.
• Intensive periodontal treatments had mixed results, with some increasing stroke risk in younger patients, particularly tooth extraction.

Interpretation:

The findings suggest that maintaining good periodontal health, particularly through tooth scaling, may lower the risk of ischemic stroke, although results vary by age and population.

Limitations:

• All included studies were observational, limiting causal inference due to potential confounding factors.
• Inconsistent adjustment for confounders like smoking.
• Most data derived from Asian populations, affecting generalizability.
• Substantial heterogeneity in study designs and definitions of interventions.

Conclusion:

Periodontal health interventions, especially tooth scaling, may reduce the risk of ischemic stroke, but further research is needed to clarify findings across different populations and age groups.

Sources:

• International Journal of Dental Hygiene