Radiology and Peri-radicular Region

Question 1

trabecula pattern of mandible?

Answer 1

thick
close together
horizontally aligned

Question 2

trabecula pattern of maxilla?

Answer 2

finer
more widely spread
no obvious alignment pattern

Question 3

most important features of periapical xray?

Answer 3

radiolucent line - space where periodontal ligament is
radiopaque = lamina dura
trabecula pattern and density of surrounding bone

Question 4

important features of the radiograph can be lost due to what?

Answer 4

contrast
resolution
superimposition
personal variation

Question 5

initial acute inflammation on an xray?

Answer 5

no apparent changes

or possible widening of periodontal ligament = perforation

Question 6

initial spread of inflammation on xray?

Answer 6

loss of lamina dura at apex

Question 7

further inflammatory spread on xray?

Answer 7

periapical bone loss

Question 8

initial chronic inflammation on xray?

Answer 8

no bone destruction seen

dense sclerotic bone periapically

Question 9

long standing chronic inflammation on xray?

Answer 9

circumbscribed, well defined, radiolucent area periapically and surrounding sclerotic bone

Question 10

what is radiolucency often seen as?

Answer 10

rarefying osteitis

Question 11

endodontics and radiography?

Answer 11

need to separate roots, may need to use bisected angle technique
multiple views at different stages of treatment