Smoking is a major risk factor for periodontitis

Area of Science:

• Periodontology
• Dental Public Health
• Epidemiology

Background:

• Cigarette smoking is a known risk factor for numerous diseases.
• Emerging evidence links smoking to adverse effects on periodontal health, including increased prevalence and severity of periodontitis and interproximal bone loss.
• The specific mechanisms by which smoking impacts periodontitis pathogenesis are not fully understood but may involve immune and cellular dysfunctions.

Purpose of the Study:

• To review the impact of smoking on periodontal health.
• To evaluate the association between smoking and periodontitis prevalence, severity, and treatment outcomes.
• To propose a new disease category for smoking-related periodontitis.

Main Methods:

• Review of epidemiologic studies and clinical data.
• Analysis of the association between smoking status and periodontitis.
• Evaluation of treatment responses in smokers versus non-smokers.

Main Results:

• Strong associations found between smoking and increased prevalence, severity, and bone loss in periodontitis.
• Smokers exhibit potential defects in neutrophil function, antibody responses, and fibroblast function.
• Periodontitis prevalence and severity are reduced in former smokers, indicating benefits of smoking cessation.
• Smoking negatively impacts treatment outcomes, with smokers overrepresented in refractory periodontitis cases.
• Smoking history is a significant predictor of future periodontitis activity.

Conclusions:

• Smoking is a major risk factor and predictor for periodontitis, constituting a significant dental public health problem.
• Smoking cessation demonstrates clear benefits for periodontal health.
• A distinct disease category, smoking-associated periodontitis, is proposed due to unique clinical characteristics in smokers.