radiology Flashcards
1
Q
teeth are wide and short
A
too far back
2
Q
teeth are thin and long
A
too far forward
3
Q
straight smile
A
chin up
4
Q
exaggerated smile
A
chin down
5
Q
how often take BWS
A
6-12 months normal pt
6-18 months adult, partially endentulous
6
Q
lingual mounting
A
raised dot is AWAY from the viewer
viewer look at from behind pt
7
Q
labial mounting
A
raised dot is TOWARD the viewer
viewer look at in front pt
recommended by ADA
8
Q
manual processing
A
developing, washing, fixing, washing and drying
9
Q
developing 5 mins at 68F
A
- reducing agent: hydroquinone or elon : reduces exposed silver halide crystal into black metallic silver
- alkalizer: sodium carbonate : softens film emulsion and speeds up action
- restrainer: potassium bromide: inhibits development of unexposed silver halide crystals
- preservative: sodium sulfite : prevents oxidation
10
Q
fixing 10 mins or 2x developing time
A
- fix agent: sodium thiosulfate: clears unexposed silver halide crystals
-hardener: potassium alum - shrinks and hardens emulsion - acidifier: acetic acid : keeps medium acidic and stops additional developemtn
-preservative: sodium sulfite - prevents oxidation
11
Q
inverted Y
A
mostly found supreior to the max canine apex
12
Q
zygomatic process
A
radiopaque
13
Q
nutrient canals
A
radiolucent
14
Q
mandibular canal
A
thick, radiolucent
15
Q
mental foramen
A
around premolars
16
Q
lingual foramen
A
radiolucent
