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NEET MDS Quiz - Practice Test

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Dental Anatomy - 3 Questions

1
Dental Anatomy
9 months of age, is the usual eruption time for
1. primary mandibular canines
2. primary maxillary canines
3. primary maxillary first molars
4. primary lower lateral incisors

📝 Explanation:

9 months of age, is the usual eruption time for primary lower lateral incis

2
Dental Anatomy
The primary canine is usually exfoliated between the ages of 1. 5 and 6 years 2. 10 and 11 years 3. l3 and l4years 4. 8 and 9years

📝 Explanation:

The primary canine is usually exfoliated between the ages of 10 and 11 years

3
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.

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