Fig. 5
From: Effect of smoking cessation on tooth loss: a systematic review with meta-analysis
Forest plot for meta-analysis of tooth loss in current and former smokers compared to never-smokers in longitudinal studies (n = 04 studies, association measure: Risk Ratio). M: male, f: female. In the Dietrich 2015 study, a: < 50 years old, b: 50–59 years old, c: 60–79 years old. In the Okamoto 2006 study, a: 30–39 years old, b: 40–49 years old, c: 50–59 years old