Question 1 · Easy
The total number of deciduous (milk) teeth in a child is:
- A32
- B20
- C24
- D28
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Answer: B · 20
A child has 20 deciduous teeth, 10 in each jaw. The first tooth usually erupts at about 6-7 months and all milk teeth are present by 2-2.5 years. A rough rule is that the number of teeth equals age in months minus 6 up to 2 years.
- A: 32 is the full permanent dentition including wisdom teeth.
- C: 24 is not a normal tooth count for any dentition.
- D: 28 is the permanent set before the third molars erupt.