Some risk factors for periodontal bone loss in 50-year-old individuals. A 10-year cohort study

摘要: Objective: The aim of this 10-year prospective study 50-year-old individuals was to analyze the incidence periodontal bone loss and potential risk factors for loss. Methods: subject sample generated from an epidemiological survey performed in 1988 subjects living County Varmland, Sweden. A randomized 15% inhabitants county drawn. At follow-up 1998, 320 (75%) 449 examined at baseline were available re-examination, out which 4 had become edentulous. Full-mouth clinical radiographic examinations questionnaire surveys 1998. Two hundred ninety-five (69%) complete data inclusion analysis changes over 10 years. Non-parametric tests, correlations stepwise multiple regression models used statistical data. Results: mean alveolar level (ABL) 2.2 mm (0.05) a further 0.4 mm (0.57) (p=0.000) lost Eight percent showed no loss, while 5% experienced 1 mm. Smoking found be strongest individual predictor (RR=3.2; 95% CI 2.03–5.15). When including as smokers only those who continued with habit during entire period, relative slightly increased (3.6; 2.32–5.57). Subjects quit smoking before examination did not demonstrate significantly disease progression (RR=1.3; 0.57–2.96). Stepwise revealed that smoking, % approximal sites probing pocket depth 4 mm, number teeth systemic significant explanatory ABL (R2=0.12). For never smokers, statistically predictors teeth, ABL, periodontally healthy educational (R2=0.20). Conclusion: diseases may obstruct possibility detect other true indicators.