《参考》
Fifty Largest U.S. Cities Fluoridation Status



City      Population(X1,000)│ Fluoridation Status/Year



New York           7323               1965
Los Angeles         3485                1999
Chicago            2787                1956
Houston            1631                1982
Philadelphia         1586                1954
San Diego           1111          Not Fluoridated
Detroit             1028                1967
Dallas             1007               1966
Phoenix            983                1990
San Antonio         936          Not Fluoridated
San Jose            782          Not Fluoridated
Indianapolis          742                1951
Baltimore            736               1952
San Francisco         724                1952
Jacksonville          673              Natural
Columbus           633                1973
Milwaukee           628                1953
Memphis            610               1970
Washington           607               1952
Boston              574               1978
Seattle              516               1970
El Paso              515             Natural
Nashville-Davidson      511              1953
Cleveland            506              1956
New Orleans           497               1974
Denver              468               1954
Austin              466               1973
Fort Worth            448              1965
Oklahoma City          445               1954
Portland              437        Not Fluoridated
Kansas City            435             1983
Long Beach            429              1971
Tucson               405            Voted
St. Louis              397              1955
Charlotte             396              1949
Atlanta               394             1969
Virginia Beach          393              1952
Albuquerque           385              1974
Oakland              372              1976
Pittsburgh             370              1952
Sacramento            369       Not Fluoridated
Minneapolis            368              1957
Tulsa                367             1953
Honolulu              365       Not Fluoridated
Cincinnati             364              1979
Miami               359              1952
Fresno               354             1954
Omaha              336              1969
Toledo               333             1955
Buffalo               328              1955

微量元素 (Micro_minerals/Trace_elements) 必須16種◎
  ◎鉄(Fe)    0.004%
  ◎スズ(Sn)
  ◎マンガン(Mn) 0.0003%
  ◎モリブデン(Mo)
  ◎銅(Cu)    0.00015%
  ◎バナジウム(V )       1971
  ◎亜鉛(Zn)   (Trace)
  ◎ケイ素(Si)         1972
  ◎コバルト(Co) (Trace)
  ◎フッ素(F )         1972
  ◎ヨウ素(I )
  ◎ニッケル(Ni)        1973
  ◎セレン(Se)
  ◎ヒ素(As)          1975
  ◎クロム(Cr)
  ◎鉛(Pb)           1981
微量元素の年号は、最近の必須性の確認年度