6 - Dental abnormalities Flashcards
Tutorial
1
Q
What is another term for supernumerary?
A
Hyperdontia
2
Q
What is a distodens?
A
Supernumerary distal to last tooth of the series
3
Q
What is the correct term for a tooth which is upside down?
A
Inverted
4
Q
What is the difference between gemination and fusion?
A
- gemination develops from the same tooth germ
- fusion is two separate tooth germs joining together
5
Q
What is a radiographic indicator of gemination versus fusion?
A
More likely to be gemination if other incisor is present
6
Q
What is taurodontism?
A
Pulp chamber large and furcation is apically placed
7
Q
Describe the radiographic appearance of amelogenesis imperfecta.
A
- thin radiopaque enamel
- spacing
8
Q
Describe the radiographic appearance of dentinogenesis imperfecta.
A
- bulbous short crowns
- progressive sclerosis of canals
- short roots
9
Q
What condition is dentinogenesis imperfecta associated with?
A
Osteogenesis imperfecta
10
Q
Describe the radiographic appearance of enamel pearls.
A
Small radiopaque circles on the CEJ/root surface
