Radio

Question 1

Radiographs can help do what? (5)

Answer 1

Calculus
Perio disease
Severity
Prognosis
Outcome

Question 2

Minor bone loss detectable? Soft tissue?

Answer 2

No, and underestimates bone loss

No soft tissue

Question 3

Which has best measure of bone in radiograph images?

Answer 3

bitewing, less angulation

Question 4

Horizontal vs vertical bitewing?

Answer 4

vertical for more bone loss or even PA if really bad

Question 5

Right angulation for radiographs?

Answer 5

1. show tips of molars with no occlusal surface
2. enamel caps/pulp chambers distinct
3. interproximal spaces open
4. proximal contact not overlapping

Question 6

If you angle more, will you see more or less bone loss?

Answer 6

Smaller than actual

Question 7

Can see soft tissue in pan?

Answer 7

yes a little

Question 8

How to ID canine in radiograph?

Answer 8

longer root than PM, incisors

Question 9

How to ID PM in radiographs?

Answer 9

tip of max 2PM will be leaning against sinus

Question 10

Radiograph alwasy taken from?

Answer 10

THE OUTSIDE

Question 11

Crest of bone supposed to be at what level normally on teeth?

Answer 11

1.5-2mm apical to `CEJ

Question 12

Crest of bone will be parallel to what?

Answer 12

CEJ of neihboring teeth

Question 13

Correct angulation for contact pt?

Answer 13

lateral part of probe against contact

Tip at middle of interproximal

Question 14

Why wont you see B-L or interproximal bone loss on radiograph?

Answer 14

bc interproximal is mostly spongy bone and the cortical bone may be intact.

Question 15

Horizontal vs vertical bone loss

Answer 15

depends on shape of remaining bone
Horizontal is parallel to CEJ line
vertical/angled is not

Question 16

Where is bone loss 1/3 measured from?

Answer 16

from normal point to apex, not to CEJ

Question 17

When describing bone loss, use what?

Answer 17

%

Question 18

fuzziness in radiograph means?

Answer 18

concave bone loss b/c area with bone is superimposed on area without. Intrabony defect.

Question 19

circumferential defect will appear as?

Answer 19

well defined radiolucency

Question 20

Calculus appears as?

Answer 20

triangles sticking out from teeth, or a “line” on anterior mandibular teeth