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A fluoride-sensitive (FS) strain of Streptococcus mutans and a laboratory-induced fluoride-resistant (FR) offspring were compared for the effects of sodium fluoride on viability and growth. There was a significant fluoride-related loss of viability in resting cell suspensions of the FS strain during a 47-hour exposure to fluoride levels above 75 ppm that was not encountered with the FR strain. The addition of 300 ppmF to actively growing six-hour broth cultures almost totally arrested the growth of the FS strain, while only slightly reducing that of the FR culture. The addition of 600 ppmF immediately terminated FS growth, and greatly reduced the rate and maximum growth of FR cultures.
L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
January 1982,
Caries research,
L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
September 1984,
Zhonghua kou qiang ke za zhi [Chinese journal of stomatology],
L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
January 1991,
Zhonghua kou qiang yi xue za zhi = Zhonghua kouqiang yixue zazhi = Chinese journal of stomatology,
L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
August 2012,
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L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
January 1981,
Caries research,
L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
July 2011,
Archives of oral biology,
L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
October 2011,
Contemporary clinical dentistry,
L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
January 2005,
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L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
May 1978,
Applied and environmental microbiology,
L R Brown, and
S F Handler, and
I M Horton, and
J L Streckfuss, and
S Dreizen
August 1997,
Oral microbiology and immunology,
