How Scientists Clean Their Teeth 



All Statements Approved by High Dental Authorities 



The facts stated here have been widely 

 known for some years among dentists and 

 scientific men. But they were not presented to 

 the public until proved beyond dispute. 



People who know — by the hundreds of 

 thousands — are changing their teeth-cleaning 

 methods. And these are the reasons: 



The old methods proved inadequate. The 

 best-brushed teeth too often discolored and de- 

 cayed. Despite the wide use of the tooth- 

 brush, statistics show that tooth troubles have 

 constantly increased. 



Science found the reason in a slimy film. You 

 can feel it with your 

 tongue. It is constantly 

 forming, and it clings. 

 It gets into crevices, 

 hardens and stays. 



That film is the cause 

 of most tooth troubles, 

 and the old methods 

 could not end it. 



That film-coat absorbs stains, and the teeth 

 seem discolored. It hardens into tartar. 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. Also 

 of many other serious diseases. 



It is therefore best to brush the teeth in 

 ways which can end the film. 



Four years ago a way was found to combat 

 that film efficiently. It has now been proved 

 by thousands of tests. Today it is embodied 

 in a dentifrice called Pepsodent, and we ask 

 you to test it yourself. 



Return your empty tooth paste tubes 

 to the nearest Red Cross Station 



(153A) 



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REG. U.S. ILwmiiiiB inn mill 



The New-Day Dentifrice 

 A Scientific Product — Sold by Druggists Everywhere 



Make This One- Week Test 



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 prevent its accumulation. 



This is not as simple as it seems. Pepsin 

 must be activated, and the usual method is an 

 acid, harmful to the teeth. So pepsin long 

 seemed barred. It is now made possible, be- 

 cause science found a harmless activating 

 method. Five governments have already 

 granted patents. That method is employed 

 in Pepsodent. 



Many teeth-cleaning 

 methods, widely pro- 

 claimed, have later been 

 found inefficient. So 

 Pepsodent was submit- 

 ted to repeated clinical 

 tests, under able author- 

 ities, before this an- 

 nouncement. Today it is proved beyond ques- 

 tion. And the object now is to bring it quickly 

 into universal use. 



Our method is to offer all a free tube for 

 test. Send the coupon for a one-week tube. 

 Use it like any tooth paste, and watch results. 



Note how clean the teeth feel after using. 

 Mark the absence of the film. See how teeth 

 whiten — how they glisten — as the fixed film 

 disappears. Let Pepsodent thus prove itself. 

 See its unique results, know the reason for 

 them. After that you will not be content to 

 return to old methods of teeth-cleaning. Cut 

 out the coupon now. 



ONE-WEEK TUBE FREE 



THE PEPSODENT CO., 



Dept. 373, 1 104 S. Wabas'n Ave., Chicago, 111. 

 Mail One- Week Tube of Pepsodent to 



Name . . ,„ 



Address 



"Mention the Geographic— It identifies you." 



