Radiology Roulette Flashcards
What color are dental Caries clinically?
Chalky White
*also brown
What is the best Radiograph to use for Interproximal Caries in the Anterior?
Posterior?
Periapicals
Bitewings
3 very Radiopaque hard tissues in Pano:
Very Radiolucent soft tissue in Pano:
Cranial Bone, Cortical Bone, Teeth
Airway
A minimum of ____% demineralization must occur before it shows up on Radiographs
55-60%
T/F
Incipient caries can be seen on Radiographs
False
How far into the Dentin does Caries have to be before we see it clinically?
1/2
Incipient caries are ____ thickness of Enamel
Moderate caries are _____ thickness of Enamel and do not involve the ______
Advanced Caries are _____ distance to Pulp Cavity
Severe Caries are _____ distance to Pulp Cavity
less than 1/2
more than 1/2
less than 1/2 (Enamel + Dentin)
more than 1/2
Clinically, Severe Caries appears as a _______
Cavitation
3 limitations of Radiographs for a Perio diagnosis:
Superimposition
No soft tissue of periodontium
Cemento-enamel Junction used as landmark for measuring bone loss
Cemento-enamel Junction (CEJ) can’t be used as diagnostic in imagery if what has occurred?
Supraeruption
Image limitations for Perio: radiographs ____ dimensional
Details lost due to _______
Radiographs don’t demonstrate ______ disease (need 55-60% demineralization)
Radiographs don’t show ______
CEJ not valid if ______ has occurred
2
superimposition
incipient
soft tissue
supraeruption
What image is best to show the bone height?
Vertical or Horizontal Bitewings
The Crest of Bone is normally ____ mm below the CEJ
1-2 mm
A little bit of inflammation will cause moderate deposition/resorption, causing…
Lots’ of inflammation will cause lots of Deposition/Resorption, causing…
Radiolucencies
Radiopacities
Deposition of Bone in Perio disease will lead to what?
Body laying down bone (sclerosis)
*radiopaque
Apical perio will cause _____, which will create _____ on an image
sclerosis
radiopacities
Localized Aggressive Perio will present how radiographically?
Usually seen in _____ decade
Happens to what 2 teeth?
____ bone loss and minimal amounts of _____
Vertical Defects
2nd
Mn 1M, CI’s
rapid, plaque
LAP (Localized Aggressive Perio) is known for what type of Bone Loss?
Vertical
***localized and vertical
Uncontrolled Diabetes will result in what on a radiograph?
Alveolar bone loss
*“bone loss and destruction of alveolar bone”
Supernumerary teeth are more likely to occur in what Dentition?
Where?
Permanent
Mx incisors (mesiodens)
Supernumerary teeth occur in ___% of the pop. and are 2x more common in _____ (gender)
1-4%
males
What syndrome should you associate with Supernumerary Teeth?
Name 2 more:
Gardner’s Syndrome
Cleidocranial Dysplasia, pykodysostosis
Most common missing teeth
and then…
and then…
and then…
3rd molars
2nd premolars
Mx LI
Mn CI
Larger than normal teeth, rarely affects entire dentition
Macrodontia
Macrodontia in the Molars is usually increased ____ dimension
Centrals?
M/D
M/D and coronal/apical
Single tooth attempts to divide (normal tooth count if treated as one)
Gemination
Union of two adjacent teeth:
Fusion
Roots of 2 or more primary or permanent teeth are fused by Cementum
Concrescence
Disturbance is the tooth formation that produces a sharp bend or curve in the tooth anywhere in the Crown or Root:
Dilaceration
Tooth inside a Tooth:
Risk of what?
Dens Invaginatus
pulpal inflammation
Extra enamel tubercle, usually located in the Central Occlusal Area
Dens Evaginatus
Elongated body and short Roots, with pulp chamber extending apically throughout
Taurodontism
T/F
Taurodontism can happen to any tooth
True
T/F
Clinically, the distinguishing features of Taurodontism are NOT visible
True
**short “bull” roots
T/F
Taurodontism occurs with greater frequency w/ Trisomy 21, AI, and Klinefelters
True
T/F
There is Tx for Taurodontism
False