Impact of Smoking on Periodontal Health

Smoking remains one of the most significant modifiable risk factors for periodontal disease worldwide. Combustible tobacco products introduce numerous toxins, including nicotine and free radicals, that compromise the vascular supply to gingival tissues and disrupt immune cell function. The resultant microvascular constriction diminishes oxygenation and nutrient delivery, while alterations in neutrophil and macrophage activity impede the clearance of pathogenic biofilms. Smokers not only experience deeper periodontal pockets and greater attachment loss but also demonstrate reduced clinical signs of inflammation, masking disease progression. At the molecular level, tobacco constituents inhibit fibroblast proliferation and collagen synthesis, leading to accelerated alveolar bone resorption. Crucially, smoking attenuates the response to both non-surgical and surgical periodontal therapies, necessitating tailored treatment protocols. Globally, the burden of smoking-related periodontal disease underpins substantial morbidity, reinforcing the need for integrated cessation strategies within dental practice.

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Impact of Smoking on Periodontal Health publication trend

The graph below shows the total number of articles in impact of smoking on periodontal health across all publications each year (not limited to Nature Index journals).

Technical terms

Periodontitis: A chronic inflammatory disease characterised by destruction of the supporting structures of the teeth, including gingiva, periodontal ligament and alveolar bone.

Alveolar bone: The portion of the jawbone that surrounds and supports the tooth sockets, essential for tooth stability.

Periodontal pocket: A pathologically deepened sulcus between the tooth and gum resulting from attachment loss and bone resorption.

Microvascular dysfunction: Impaired function or structure of small blood vessels, leading to reduced tissue perfusion and compromised healing.

Cytokine: A signalling protein released by immune cells that modulates inflammation and tissue repair in periodontal tissues.

References

1. Association between Smoking and Periodontal Disease in South Korean Adults. International Journal of Environmental Research and Public Health (2023).
2. Effect of tobacco on periodontal disease and oral cancer. Tobacco Induced Diseases (2019).
3. Oral and periodontal implications of tobacco and nicotine products. Periodontology 2000 (2021).
4. Tobacco Use and Periodontal Disease—The Role of Microvascular Dysfunction. Biology (2021).
5. Destructive effects of smoking on molecular and genetic factors of periodontal disease. Tobacco Induced Diseases (2010).
6. Site‐specific treatment outcome in smokers following non‐surgical and surgical periodontal therapy. Journal Of Clinical Periodontology (2015).