本文对牙齿早脱与饮水含氟量的关系进行了调查分析。证实牙齿早脱与饮水含氟量成正比。并证实脱牙开始年龄与饮水含氟量成反此,即饮水含氟量越大,脱牙开始年龄越小。同时证实氟牙以块状脱落为主,最后遗留残根;正常牙齿以松动脱落为主,即老年期生理性脱落。 In this paper, the relationship between tooth decay and fluoride content in drinking water was investigated. Confirmed that teeth off early and drinking water is proportional to the amount of fluorine. And confirmed that the age of onset of tooth decay and drinking water into the anti-fluorine content, that is, the greater the fluorine content in drinking water, the age of the tooth off the smaller. At the same time confirmed that the faucet to massive lump-based, the last residual remnant root; normal teeth to loose the main, that is, physiological aging off.