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NEET MDS Quiz - Practice Test

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Dental Anatomy - 3 Questions

1
Dental Anatomy
Malformation of the coronal portion of the permanent anterior teeth is most frequently encountered in the
1. maxillary central incisor
2. maxillary lateral incisor
3. maxillary canine
4. mandibular lateral incisor

📝 Explanation:

Maxillary lateral incisor agenesis:
This is the most common congenital absence of a permanent tooth in the maxillary anterior region, accounting for about 20% of all dental anomalies.

Coronal developmental invagination (DI):This is a common anomaly in the permanent maxillary lateral incisor, usually appearing as an accentuation of the lingual pit.It's often bilateral.

Peg-shaped crown:This is a common alteration in the maxillary lateral incisor.

2
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

3
Dental Anatomy
The smallest and most inaccessible root canal-in the maxillary second molar is the 1. faciolingual 2. mesiobuccal 3. lingual 4. distobuccal

📝 Explanation:

The smallest and most inaccessible root canal-in the maxillary second molar is the distobuccal

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