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        -各都道府県の3歳児歯科検診結果- [厚生労働省・母子保健課調べ]
  
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        | 日本全国平均値の経年推移(都道府県の結果を合計して算出)
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        | 年度  | 
        都道府県数  | 
        受診児数  | 
        有病者数  | 
        う蝕歯総数  | 
        有病者率(%)  | 
        一人平均う歯数(dmft)  | 
       
      
        | 1981   | 
        46   | 
        1,293,513   | 
        798,916   | 
        4,275,890  | 
        61.8   | 
        3.31   | 
       
      
        | 1982   | 
        46   | 
        1,234,078   | 
        753,428   | 
        4,030,056  | 
        61.1   | 
        3.27   | 
       
      
        | 1983   | 
        46   | 
        1,215,854   | 
        729,919   | 
        3,855,348  | 
        60.0   | 
        3.17   | 
       
      
        | 1984   | 
        46   | 
        1,185,124   | 
        699,625   | 
        3,664,355  | 
        59.0   | 
        3.09   | 
       
      
        | 1985   | 
        46   | 
        1,192,325   | 
        670,416   | 
        3,493,782  | 
        56.2   | 
        2.93   | 
       
      
        | 1986   | 
        46   | 
        1,198,433   | 
        681,034   | 
        3,515,456  | 
        56.8   | 
        2.93   | 
       
      
        | 1987   | 
        46   | 
        1,179,206   | 
        648,626   | 
        3,342,548  | 
        55.0   | 
        2.83   | 
       
      
        | 1988   | 
        46   | 
        1,137,755   | 
        635,054   | 
        3,302,823  | 
        55.8   | 
        2.90   | 
       
      
        | 1989   | 
        47   | 
        1,135,302   | 
        619,252   | 
        3,228,004  | 
        54.5   | 
        2.84   | 
       
      
        | 1990   | 
        47   | 
        1,127,256   | 
        599,336   | 
        3,094,785  | 
        53.2   | 
        2.75   | 
       
      
        | 1991   | 
        47   | 
        1,107,022   | 
        576,564   | 
        2,934,714  | 
        52.1   | 
        2.65   | 
       
      
        | 1992   | 
        47   | 
        1,067,384   | 
        544,231   | 
        2,730,591  | 
        51.0   | 
        2.56   | 
       
      
        | 1993   | 
        47   | 
        1,046,068   | 
        513,706   | 
        2,453,757  | 
        49.1   | 
        2.35   | 
       
      
        | 1994   | 
        47   | 
        1,045,568   | 
        504,713   | 
        2,472,684  | 
        48.3   | 
        2.36   | 
       
      
        | 1995   | 
        47   | 
        1,034,921   | 
        464,474   | 
        2,171,260  | 
        44.9   | 
        2.10   | 
       
      
        | 1996   | 
        47   | 
        1,024,757   | 
        435,093   | 
        2,002,523  | 
        42.5   | 
        1.95   | 
       
      
        | 1997   | 
        47   | 
        1,080,311   | 
        445,361   | 
        2,030,244  | 
        41.2   | 
        1.88   | 
       
      
        | 1998   | 
        47   | 
        1,033,336   | 
        413,918   | 
        1,885,779  | 
        40.1   | 
        1.82   | 
       
      
        | 1999   | 
        47   | 
        1,045,664   | 
        391,936   | 
        1,746,232  | 
        37.5   | 
        1.67   | 
       
      
        | 2000   | 
        47   | 
        1,042,396   | 
        367,267   | 
        1,583,398  | 
        35.2   | 
        1.52   | 
       
      
        | 2001   | 
        47   | 
        1,050,463   | 
        353,341   | 
        1,529,035  | 
        33.6   | 
        1.46   | 
       
      
        | 2002   | 
        47   | 
        1,052,341   | 
        339,594   | 
        1,464,398  | 
        32.3   | 
        1.39   | 
       
     
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