This association between a history of periodontitis and the risk of tongue cancer , they said , needs to be confirmed by larger studies that include other oral cancer sites , women , those of other races , and a quantitative assessment of lifetime tobacco exposure 他们说牙周炎病史和舌癌发病风险二者间具有相关性，还需要通过大量的研究来证实该研究，包括另外的位点的口腔癌，女性，其他种族及暴露于吸烟人群的寿命定量评价。
Smoking , which is linked to lung , mouth , stomach , pancreatic and bladder cancers , is the biggest avoidable risk factor , followed by alcohol and not eating enough fruits and vegetables . " of the 2 . 43 million deaths , 37 percent of them are from lung cancer , " said ezzati 报道说，吸烟这种不良嗜好与肺癌口腔癌胃癌胰腺癌以及膀胱癌等多种癌症有关，是一项最为主要的可以避免的危险因素，其次是酗酒和不良饮食没有摄入足够的蔬菜和水果。
