Dental Anomolies Flashcards
missing teeth major differential
also called?
Ectodermal dysplasia
hypodontia, oligodontia, anodontia
macrodontia disease mechanism
cause unknown - but vascualr abnormalities
see macrodontia on one side?
bilaterally – more likely congenital / unknonw cause
if one area - could be significant
has transposition been reported in primary teeth?
no
fusion vs gemination difference
fusion – one less tooth
number of teeth is decreased by one with this
concrescence
fusion of roots together by the cementum
gemination
looks like fusion but when count number of teeth – will remain normal
NORMAL NUMBER OF TEETH
main way to recognoze dilaceration
bullseye – ROOT apex curves and then can see either buccal or lingually the opening
*dens invaginatis
ingrwoing of enamel into pulp space
common location is lateral incisor
more severe where deforamties in crown of tooth
- dens in dente
spectrum of dens invaginatus
dens invaginiatis < in dente < dialted odontoma
dialted odontoma
associated with third molar
most common appearance of AI
hypoplastic type
Dentinogenesis and OI appears? *
bulbous crown
narrow roots
cervical constriction!!
root canals absent or thin
Dentin Dysplasia * type I
radicualr
type II of dentin dysplasia *
coronal
bulcous crowns
Dentinogen Imperfecta
narrow roots
DI