National Geographic : 1926 Apr
With a little mirror, look behind and between yourteeth, in the places seldom reachedwith a brush. That's where decay and tartar work de struction. Behind and between your teeth---that's where trouble starts STEARLY forty years ago, Dr. W. D. / Miller, an American dentist prac ticing in Germany, demonstrated that colonies of acid-forming germs attach themselves to the enamel by means of the sticky mucin film. If allowed to remain in one spot for any length of time, these germ colonies secrete sufficient acid to eat through the enamel. After Miller's discovery of the cause of tooth decay, it was thought that decay could be prevented simply by killing the germs. Thus antiseptic dentifrices were introduced. Needless to say, they proved unsuccessful, for the germs were apparent ly snugly protected in, or under, the heavy accumulation of mucin mucinn plaques). By and by, scientists agreed that it was necessary to find a mucin solvent, so that the germ-laden mucin film could be thor ouglily removed, especially from the in accessible spaces between teeth, where a brush cannot be effectively applied. It is in these places that your dentist looks first for trouble-and invariably finds it. After nearly 30 years of fruitless search for such a solvent, the problem was laid before lhe Mellon Institute of Industrial research, an endowed scientific institution, operated without profit. Here a formula was gradually perfected for a harmless, vet exceedingly effective, mucin solvent. It was called Mu-Sol-Dent. fu-Sol-Dent At all leading drug stores. Get a bottle today or use coupon for sample. Mu-Sol-Dent is a liquid, for only a liquid can reach and clean the inaccessible spaces behind and between teeth. Before being given to the public, it was submitted to the leading dentists for clinical tests. Soon a flood of letters came pouring in from these professional men, all testifying to amazing results obtained by this revo lutionary new method of cleaning tecth. Over 5,000 such reports were received in a short time. Mu-Sol-Dent not only is a great step forward in preventing decay, but also practically prevents tartar from forming. Tartar is the commonest cause of bleeding guns, pus pockets, pyorrhea, loss of teeth and health. Dentists found Mu-Sol-Dent very healing for sore gums and after tooth extraction. Physicians value it as a gentle, efficient solvent for mucus in nose and throat. Mu-Sol-Dent is so pleasant to use that even children like it. It entirely does away with the messy old way of cleaning teetl, doing the work of paste and mouth wash combined in a safer, more effective way. Send with lOc for Mailing The V. B. Corporation Dept. IV. 916-N Forbes St., Pittsburgh, Pa. Please send Sample Bottle of Mu-Sol-Dent to Name....-----.......................------------------------- Address ..-..- ...- .........- ..... . . . . .