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