Anatomy and Development

Question 1

Which primary tooth does not resemble any other tooth?

Answer 1

Mandibular first primary molar.

Question 2

Enamel rods in gingival third extend where in primary teeth?

Answer 2

Oclusally from DEJ

Question 3

Where is the primate space in relations to canines?

Answer 3

Mesial to max canines

Distal to man canines

Question 4

What is flush, class I and class II occlusion?

Answer 4

Flush=End to end canine
Class I= Mesial step canine
Class II= Distal step canine

Question 5

How much spacing in the primary teeth is a predictor of no chances of crowding?

Answer 5

6 mm and above

Question 6

What is rega-fede disease?

Answer 6

Traumatic ulceration of ventral surface of tongue usually associated with natal teeth.

Question 7

Which tooth is a smaller version of permanent max first molar?

Answer 7

Primary max second molar.

Question 8

primary Occlusion should be in normal alignment by what age? When roots are fully formed?

Answer 8

Occlusion shortly after age of 2.

Roots formed by age 3.

Question 9

Mixed dentition age range?

Answer 9

6-13 years old.

Question 10

What are the 4 types of amelogenesis imperfecta?

Answer 10

1. Hypoplastic: Insufficient enamel formation
2. Hypomaturation: Poor mineralization of enamel
3. Hypocalcified: Matrix poorly calcified
4. Hypomaturation-hypoplastic.

Question 11

What are the 3 types of dentinogenesis imperfecta?

Answer 11

1. Occurs in osteogenesis imperfecta.
2. Hereditary opalescent dentin
3. Shell tooth appearance.