week five Flashcards
(20 cards)
unilocular lesion corticated boarders
lesion with a thin well demarcated radiopaque rim of bone, benign and slow growing
unilocular lesion noncorticated borders
lesion without a thin radiopaque rim of bone at the periphery appears fuzzy and poorly defined
multilocular radiolucent lesion
lesion that has multiple compartments of radiolucency like soap bubbles
edentulous zone
area without teeth
what is the normal width of the pdl
0.5 mm
focal opacity
well defined localized radiopaque lesion
target lesion
well defined localized radiopaque area surround by a uniform radiolucent halo
multifocal confluent pattern
multiple radiopacities that appear to overlap or flow together
what does an irregular radiopacity represent
malignant condition
ground glass opacity
bone appears to be pebbled, like an orange peel
what does a mixed lucent-opaque lesion represent
calcifying tumors
pulpal sclerosis
a diffuse calcification of the pulp chamber and pulp canals of teeth results in pulp cavity of decreased size
pulpal obliteration
production of secondary dentin due to any type of trauma, appears to not have pulp chamber or canals
pulp stones
round, ovoid or cylindrical calcifications found in the pulp chamber or canal
what is the cause of a periapical cyst and what would it look like on an x ray
results from pulpal death and necrosis and it is a round radiolucency at the apex of a tooth
what is the cause of a periapical granuloma and what would it look like on an x ray
pulpal death and necrosis and is the most common localized mass of chronically inflamed granulation tissue, widening of the periodontal ligament space
what is normal alveolar crest
1.5 - 2 mm
how much loss for slight
1 - 2 mm
how much loss of moderate
3 - 4 mm
how much loss for severe
5 mm or greater