National Geographic : 1920 Mar
Dental Science Has Now Found a Film Combatant All Statements Approved by High Dental Authorities A New Way to Save Teeth Millions of teeth are being cleaned in a new way. Able author ities have tested and approved it. And leading dentists all over America are now urging its adoption. The great tooth wrecker is a slimy film. It causes most tooth troubles. It clings to teeth, enters crevices, and stays. Ordinary brushing methods do not end it. So that film, despite your brush- ing, may do a ceaseless damage. That film is what discolors-not the teeth. It is the basis of tar tar. It holds food substance which ferments 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-now a common trouble. Active Pepsin Now Applied Dental science, after years of searching, has found a way to com bat that film. Its efficiency has been proved beyond all question. Now the method is embodied in a dentifrice called Pepsodent, and at least a million people have adopted it already. 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. Pepsin long seemed impossible. It must be activated, and the usual agent is an acid harmful to the teeth. But science has dis covered a harmless activating method, and thus opened a new dental era. The Results Are Apparent The results are quick and apparent. They can be seen and felt. A test is a revelation. So we send a 10-Day Tube to all who ask and let results convince them. Make this test and you will know what clean teeth mean. There are few things more important. PA T . OFF. T Pv PpsCjTDept. PE REG.U.S. eMail The New-Day Dentifrice A pepsin tooth paste which conforms in every way Name with modern dental requirements. Druggists everywhere are supplied with large tubes Address Accept This Ten-Day Test Send the coupon for a 10 Day Tube. Then note how clean the teeth feel after using. Mark the absence of the slimy film. See how teeth whiten as the fixed film disappears. This simple test will tell you what is best for you and yours. 291 en-Day Tube Free PSODENT COMPANY, 91, 1104 S. Wabash Ave., Chicago, Ill. 10-Day Tube of Pepsodent to -- -------------- - - - - - - - - "Mention The Geographic-It identifies you"