NEET Solved Paper 2017 Question 64
Question: A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?
Options:
A) Molars
B) Incisors
C) Canines
D) Pre-molars
Show Answer
Answer:
Correct Answer: D
Solution:
- At the age of two years, a child typically has a set of primary (baby) teeth. A full set of primary teeth consists of 20 teeth, which includes:
- 8 Incisors (4 upper and 4 lower)
- 4 Canines (2 upper and 2 lower)
- 8 Molars (4 upper and 4 lower)
Primary teeth do not include premolars. Premolars are part of the permanent teeth set, which begin to appear around the age of 6 years.
Given that the boy had twenty teeth, it indicates he had a complete set of primary teeth. Therefore, the teeth that were absent are the premolars.