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प्रश्न
Touch and tell how many teeth are there in your mouth. Which students in the class have the maximum number of teeth?
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उत्तर
Teeth erupt twice in a human's mouth. First of all, after 6-8 months after the birth of the child, the teeth start coming out, these are called temporary or milk teeth. At the age of 8-10 years, these teeth fall out and in their place, permanent teeth come, whose total number is 32. There are four types of teeth on the basis of their structure.
- borer or rodent - bite tooth,
- piercing teeth,
- forward and
- CHARVANAKA - Chewing teeth.
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