Predictors for tooth loss in periodontitis patients: Systematic review and meta-analysis.

Abstract

A range of predictors for tooth loss in periodontitis patients have been reported. We performed a systematic review and meta-analysis to assess the consistency and magnitude of any association between a total of 12 predictors and tooth loss. Medline/Embase/Central were searched for longitudinal studies investigating the association between predictors and tooth loss in periodontitis patients. Random-effects meta-analysis was performed, and study quality assessed. Twenty studies (15,422 patients, mean follow-up: 12years) were included. The mean annual tooth loss/patient was 0.12 (min./max: 0.01/0.36). Older patients (n=8 studies; OR: 1.05, 95% CI: 1.03-1.08/year), non-compliant ones (n=11; 1.51, 1.06-2.16), diabetics (n=7; 1.80, 1.26-2.57), those with IL-1-polymorphism (n=3; 1.80; 1.29-2.52) and smokers (n=15; 1.98, 1.58-2.48) had a significantly higher risk of tooth loss. Teeth with bone loss (n=3; 1.04, 1.03-1.05/%), high probing pocket depth (n=6; 3.19, 1.70-5.98), mobility (n=4; 3.71, 1.65-8.38) and molars (n=4; 4.22, 2.12-8.39), especially with furcation involvement (n=5; 2.68, 1.75-4.08) also showed higher risks. Gender (n=16; 0.95, 0.86-1.05) and endodontic affection (n=3; 3.62, 0.99-13.2) were not significantly associated with tooth loss. Older, non-compliant, smoking or diabetic patients, and teeth with bone loss, high probing pocket depth, mobility, or molars, especially with furcation involvement showed higher risks of tooth loss.