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" That is what discolors — not the teeth. Film is the basis of tartar. It holds food substance which ferments and forms acid. It holds the acid in contact with the teeth to cause decay. "
Life - Page 33
1922
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New Outlook, Volume 127

1921 - 750 pages
...dimmed and ruined by it. Film absorbs stains, making the teeth look dingy. It is the basis of tartar. It holds food substance which ferments and forms acid....They, with tartar, are the chief cause of pyorrhea. Now a new era Now dental science, after years of research, has found ways to fight film. Able authorities...
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New Outlook, Volume 130

1922 - 772 pages
...and forms acid. It holds the acid in contact with the teeth to cause decay. Millions of germs breed in it. They, with tartar, are the chief cause of pyorrhea. Very few people have escaped the troubles caused by film. Two film combatants Now two combatants have been found. Many careful tests...
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The National Geographic Magazine, Volume 40

Geography - 1921 - 882 pages
...film effectively. Film absorbs stains, making the teeth look dingy. Film is the basis of tartar. It holds food substance which ferments and forms acid....They, with tartar, are the chief cause of pyorrhea. Also of internal troubles. Ways to combat it Dental science has now found two effective film combatants....
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The National Geographic Magazine, Volume 39

Geography - 1921 - 974 pages
...dimmed and ruined by it. Film absorbs stains, making the teeth look dingy. It is the basis of tartar. It holds food substance which ferments and forms acid....They, with tartar, are the chief cause of pyorrhea. Now a new era Now dental science, after years of research, has found ways to fight film. Able authorities...
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McClure's Magazine, Volume 56

1924 - 496 pages
...much of it clings and stays. Soon it discolors and forms dingy coats, then teeth lose their luster. Film also holds food substance which ferments and...They, with tartar, are the chief cause of pyorrhea. Film is the teeth's great enemy, so dental science long sought ways to fight it. Two ways were found,...
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Sunset, Volumes 50-51

California - 1923 - 1332 pages
...If not removed, it forms dingy coats. Tartar is based on film. And few things do more to mar beauty. Film also holds food substance which ferments and...They, with tartar, are the chief cause of pyorrhea. Thus most tooth troubles are now traced to film. Very few escaped Research found two ways to fight...
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Sunset, Volumes 48-49

California - 1922 - 1144 pages
...enters crevices and stays. That is what discolors — not the teeth. Film is the basis of tartar. 1 1 holds food substance which ferments and forms acid....They, with tartar, are the chief cause of pyorrhea. Ways to end it Dental science has in late years found two ways to fight film. It has proved them by...
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The Canadian Magazine, Volume 57

1921 - 608 pages
...film effectively. Film absorbs stains, making the teeth look dingy. Film is the basis of tartar. It holds food substance which ferments and forms acid....They, with tartar, are the chief cause of pyorrhea. Also of internal troubles. Ways to combat it Dental science has now found two effective film combatants....
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Theatre Magazine, Volume 33

W. J. Thorold, Arthur Hornblow, Arthur Hornblow (Jr.), Perriton Maxwell, Stewart Beach - Theater - 1921 - 458 pages
...and forms acid. It holds the acid in contact with the teeth to cause decay. Millions of germs breed in it. They, with tartar, are the chief cause of pyorrhea. Very few people, young or old, escape these film attacks. Despite the tooth brush, these tooth troubles have been constantly...
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The Outlook, Volume 130

United States - 1922 - 774 pages
...enters crevices and stays. That is what discolors — not the teeth. Film is the basis of tartar. It holds food substance which ferments and forms acid....They, with tartar, are the chief cause of pyorrhea. Ways to end it Dental science has in late years found two ways to fight film. It has proved them by...
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