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National Geographic : 1920 Jun
Contents
Brush teeth As dentists urge--as millions now are doing All statements approved by high dental authorities 1r Leading dentists all over America are urging the adoption of a film-removing tooth paste. Millions of people have already proved it. In every circle nowadays you see white, glistening teeth. Ask about them and the owners will say, probably, that Pepsodent has done it. By fighting film Those results come from fighting film-that viscous film which ever forms on teeth. Most lack of luster is now traced to that, also most other tooth troubles. Film clings to teeth, enters crevices and stays. The tooth-brush does not end it. The ordinary tooth-paste does not dissolve it. So much of it stays and hardens, until you have it taken off in the dentist's chair. Film is what discolors-not the teeth. It 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. PAT. OFF REG. U.S. The New-Day Dentifrice A scientific film combatant, now advised by leading dentists everywhere. Druggists supply the large tubes. Millions of germs breed in it. They, with tartar, are the chief cause of pyorrhea. All these troubles have been constantly increasing for lack of a film combatant. The way is found Dental science, after years of searching, has found a way to fight film. Five years of clinical and laboratory tests have proved it beyond question. For home use the method is embodied in a dentifrice called Pepsodent, made to meet every dental requirement. And to make it known quickly in every home, a io-Day Tube is being sent to every one who asks. A convincing test The Pepsodent results are evident and quick. A ten-day test will leave no doubt about them. And a book will tell the reason. Pepsodent is based on pepsin, the digestant of albumin. The film is albuminous matter. The object of Pepsodent is to dissolve it, then to day by day combat it. A new discovery makes this method pos sible. Pepsin must be activated, and the usual agent is an acid harmful to the teeth. But science has found a harmless activating method. Now active pepsin can be constantly applied, and forced into every hiding place of film. Send the coupon for a io-Day Tube. Note how clean the teeth feel after using. Mark the absence of the viscous film. See how the teeth whiten as the fixed film disappears. Look at your teeth now, then look in ten days. Let your own teeth decide between the old ways and the new. This is important. Cut out the coupon so you won't forget. 384 Ten-day tube free -- _ --- --- -. --- ---. ITHE PEPSODENT COMPANY, SDept. 496, 1104 S. Wabash Ave., Chicago, Ill. i Mail 10-Day Tube of Pepsodent to I ........................................ | I ---- ~~"~'" ~~~~" ~~~~' ~ ~ ~ ~ ~ -- i I I i U ...-------------.......---- ------------- -- --- ---- ---.. ... I Only one tube to a family I I* "Mention The Geographic-It identifies you" -
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