[A case-control study on risk factors of periodontitis]

A 1:1 matched case-control study was conducted to determine the risk factors of periodontitis for the government cadres in Wuhan city. Results showed that dental calculus, cigarette smoking and alcohol consumption were identified as risk factors of periodontitis with odds ratios 5.31, 2.13 and 1.86 respectively. Drinking tea was not found related with periodontitis. In the process of periodontitis, synergetic effect between cigarette smoking, alcohol drinking and dental calculus were noticed. In the general population, the proportions of periodontitis cases attributed to alcohol drinking, cigarette smoking and dental calculus were 25.12%, 24.04% and 46.29% respectively.