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3. Write any one difference between milk teeth and permanent teeth. |
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Answer» A:Primary teeth are Milk teeth, which appear in the mouth at 6-7 months and shed by 11 YEARS. These are 20 in number. Permanent teeth appear at 6-7 years and the last permanent tooth (Wisdom tooth) APPEARS at the AGE of 17-23 years. Most permanent teeth erupt at the place of milk teeth except few. |
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