National Geographic : 1922 Jan
Be More Careful of your teeth-combat the film If you are brushing your teeth in a wrong way, learn what this new way means. Authorities now advise it. Leading dentists everywhere are urging its daily use. Mil lions of people employ it. Make this ten-day test and let the results show you what clean teeth mean. That dingy film Film is that viscous coat you feel. It clings to teeth, enters crevices and stays. That is what discolors - not the teeth. Film 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. Germs breed by millions in it. They, with tartar, are the chief cause of pyorrhea. Dental science has in late years found two ways to fight film. It has proved them by careful tests. Now they are embodied in a new-day tooth paste-called Pepsodent-for daily application. Other new effects Pepsodent brings three other effects, natural and very important. It multiplies the salivary flow - Nature's great tooth protecting agent. It multiplies the starch digestant in the saliva, to digest starch de posits. They may otherwise cling and form acids. It multiplies the alkalinity of the saliva, to neutralize the acids which cause tooth de cay. Thus every use does five things which dental authori ties now regard as essential. You'll quickly see A io-Day tube of Pepsodent is sent to all who ask. That shows the delightful effects. In a week you will realize that this method means much to you and yours. Send the coupon for it. Note how clean the teeth feel after using. Mark the absence of the viscous film. See how teeth whiten as the film-coats disappear. Watch all the effects, then read the reasons in our book. That test may lead to life long benefits. Cut out the coupon now. PAT. OFF REG. VU.S . The New-Day Dentifrice A scientific film combatant, whose every application brings five desired effects. Ap proved by highest authorities, and now ad vised by leading dentists everywhere. All druggists supply the large tubes. ______ ______ ______ ______ ______ ______ ______ ______ ______ ______ ______ ______ _____ I 10-Day Tube Free "" THE PEPSODENT COMPANY, Dept. 513, 1104 S. Wabash Ave., Chicago, Ill. Mail 10-Day Tube of Pepsodent to Only one tube to a family "Mention The Geographic-It identifies you"