National Geographic : 1920 Nov
Never Sleep With a film-coat on your teeth food acid. teeth Millions of people on retiring now combat the film on teeth. They fight it day by day. And those glistening teeth seen everywhere now form one of the results. You owe yourself a trial of this new teeth cleaning method. Dentists everywhere ad vise it. The results it brings are all-impor tant, and they do not come without it. What film does Your teeth are coated with a viscous film. Feel it with your tongue. It clings to teeth, enters crevices and stays. And dentists now trace most tooth troubles to it. The ordinary tooth paste does not end film. So, despite all brushing, much film remains, to cause stain, tartar, germ troubles and decay. It is the film-coat that discolors, not the teeth. Film is the basis of tartar. It holds Pe2pso erg REG. U.S. The New-Day Dentifrice A scientific film combatant combined with two other modern requisites. Now advised by leading dentists everywhere and supplied by all druggists in large tubes. substance which ferments and forms It holds the acid in contact with the to cause decay. Millions of germs breed in it. They, with tartar, are the chief cause of pyorrhea. Ways to combat it Dental science, after years of research, has found effective ways to fight film. Able au thorities have proved their efficiency. To gether they bring, in modern opinion, a new era in teeth cleaning. These five methods are combined in a den tifrice called Pepsodent-a tooth paste which complies with all the new requirements. And a io-Day Tube is now sent free to every one who asks. Watch the teeth whiten You will see and feel results from Pepso dent which brushing never brought you here tofore. A week's use, we think, will amaze you. One ingredient is pepsin. One multiplies the starch digestant in the saliva, to digest all starch deposits that cling. One multiplies the alkalinity of the saliva to neutralize mouth acids. Two factors directly attack the film. One of them keeps the teeth so highly polished that film cannot easily cling. Watch these effects. Send the coupon for a io-Day Tube. Note how clean the teeth feel after using. Mark the absence of the viscous film. Note how teeth whiten as the film-coat disappears. The book we send explains all these results. Judge what they mean to you and yours. Cut out the coupon so you won't forget. 484 10-Day tube free THE PEPSODENT COMPANY, Dept. 880, 1104 S. Wabash Ave., Chicago, Ill.: Mail 10-Day Tube of Pepsodent to Only one tube to a family U "Mention The Geographic-It identifies you"