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Updated: May 28, 2026
06:07
Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System
Published on: October 22, 2020
Causal association between smoking and tooth loss is highly likely
1Center for Evidence-based Dentistry, The Forsyth Institute, Cambridge, Massachusetts, USA.
Evidence-Based Dentistry
|October 8, 2011
Summary
Smoking is highly likely to cause tooth loss, with moderate associations found across multiple studies. While former smokers show a reduced risk, further cohort studies are needed to confirm this causal link.
Area of Science:
- Oral Health Research
- Public Health Epidemiology
- Tobacco Control Studies
Background:
- Systematic review and meta-analysis of studies investigating the link between smoking and tooth loss.
- Inclusion criteria focused on English-language studies reporting effect sizes for smoking and tooth loss, excluding reviews and combined smoker/non-smoker analyses.
Discussion:
- The review identified a consistent, albeit moderate, association between smoking and tooth loss across six cross-sectional and two cohort studies.
- Four studies indicated a dose-response relationship, suggesting increased smoking exposure elevates tooth loss risk.
- A reduced risk of tooth loss was observed in former smokers across six studies, indicating potential benefits of smoking cessation.
Key Insights:
- A strong biological plausibility supports a causal relationship between smoking and tooth loss.
- The evidence consistently points towards smoking as a significant risk factor for tooth loss.
- Despite study limitations, the findings are robust due to consistent results and biological rationale.
Outlook:
- Further longitudinal cohort studies are recommended to solidify the causal association.
- Investigating diverse populations will enhance the generalizability of findings.
- Continued research is crucial for informing public health policies on smoking cessation and oral health maintenance.
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