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National Geographic : 1919 Nov
Contents
Why That Stain On Teeth Brushed Daily? All Statements Approved by High Dental Authorities It is in the Film Millions find that stain and tartar form on which ferments and forms acid. It holds the teeth brushed daily. Teeth decay, pyorrhea acid in contact with the teeth to cause decay. starts, despite the constant cleaning. Millions of germs breed in it. They, with tar tar, are the chief cause of pyorrhea: Also of The reason lies in a slimy film. You can countless troubles, local and internal. feel it with your tongue. It clings to the teeth, gets between the teeth, enters crevices and Dental science, after years of research, has gets between the teeth, enters crevices and T found a film combatant. Clinical tests have stays. The tooth-brush doesn't end it. The amply proved its efficiency. Also years of ordinary dentifrice cannot dissolve it. And laboratory tests. Now leading dentists all over dental science knows that film is the cause of America urge its universal use. most tooth troubles. It is embodied for home uses in a dentifrice The film is what discolors, not the teeth. It called Pepsodent. And a 10-Day Tube for is the basis of tartar. It holds food substance testing is sent free to all who ask. Watch the Film Go Ask us for this 10-Day Tube. Use like any tooth paste. Note how clean the teeth feel after using. Mark the absence of the slimy film. See how the teeth whiten as the fixed film disappears. Let your own teeth show you what this method means. Pepsodent is based on pepsin, the digestant of albumin. The film is albuminous matter. The object of Pepsodent is to dissolve it, then to constantly combat it. A new invention has made pepsin possible. It must be activated, and the usual method is an acid harmful to the teeth. So pepsin long seemed forbidden. Now science has supplied a harmless activating method. Now active pepsin, as employed in Pepsodent, can be ap plied twice a day to that film. That fact opens up a new era in teeth cleaning, and we ask you to learn what it means. PAT.PF. Pe ps-d t REG. U.S. The New-Day Dentifrice A Scientific Product- Sold by Druggists Everywhere m ral mm a ammm mm mmm mmo v mmm am mm mm------ mmmama mrm 1 Send the Coupon for a 10-Day Tube Cut it out now so you won't forget. Com- len-Uay Tube Free THE PEPSODENT COMPANY, Dept. 736, 1104 S. Wabash Ave., Chicago, I11.: Mail 10-Day Tube of Pepsodent to pare this tooth paste with the kind you use, I Name then judge for yourself what is best. (255) | I Address
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