. Physiology, experimental and descriptive . TIME OF APPEARANCE7th Month9th 18th 12th 24th TEMPORARY SETUpper. PERMANENT SETFig. 57. TEETH : Kinds, Arrangements, and Times of Appearance. The thirty-two teeth of the permanent set were precededby a temporary set of twenty Milk Teeth. Because the first set is temporary, it should not therefore 202 CARE OF THE TEETH. be neglected. Cavities in these should be filled and the teethkept clean. Before the temporary set has gone, the first of the per-manent set appear. The first of these, often called the six-year molars, are just back of the hindermost
. Physiology, experimental and descriptive . TIME OF APPEARANCE7th Month9th 18th 12th 24th TEMPORARY SETUpper. PERMANENT SETFig. 57. TEETH : Kinds, Arrangements, and Times of Appearance. The thirty-two teeth of the permanent set were precededby a temporary set of twenty Milk Teeth. Because the first set is temporary, it should not therefore 202 CARE OF THE TEETH. be neglected. Cavities in these should be filled and the teethkept clean. Before the temporary set has gone, the first of the per-manent set appear. The first of these, often called the six-year molars, are just back of the hindermost milk should receive especial care, as they -will never be re-placed. Any beginning of decay in them ought to receiveprompt attention. The Care of the Teeth. — The teeth need careful atten-tion. They should be thoroughly brushed at least twice aday, on rising and on going to bed. It would be better toclean them after each -meal also. If a tooth powder, recom-mended by a reliable dentist, is not used, a good white castilesoap will serve well. It is better to use tepid water. If the teeth are
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