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NEET MDS Quiz - Practice Test
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Practice Test

Dental Anatomy - 3 Questions

1
Dental Anatomy
In an average child the mixed dentition period is from
1. 10 years to 25 years
2. 4 yrs to 12 yrs
3. 8 yrs to 17 yrs
4. 6 yrs to 13 years

📝 Explanation:

In an average child the mixed dentition period is from 6 yrs to 13 y

2
Dental Anatomy
When extracting a primary maxillary incisor in which the root has been partially resorbed because of pres sure from its developing succe daneous tooth, which aspect of the remaining primary root will usually be longest and attached most securely to the gingiva?
1. Facial
2. Mesial
3. Lingual
4. Distal

📝 Explanation:

In the case of primary teeth, the roots are often resorbed as the permanent teeth develop. The facial aspect of the root tends to be the last area to undergo resorption due to its position and the way the succedaneous tooth exerts pressure. The facial root surface is generally more stable and remains attached to the gingiva longer than the other aspects, making it the longest and most securely attached during extraction.

3
Dental Anatomy
How many root canals does a madibular first molar normally have
1. 2
2. 3
3. 4
4. 5

📝 Explanation:

madibular first molar normally have 3 root canals

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