Week 1

Question 1

Radiation

Answer 1

energy carried by waves or particles

Question 2

X-Radiation

Answer 2

high energy radiation using electrons

Question 3

Safety: Distance

Answer 3

6ft

Question 4

Safety: Position

Answer 4

perpendicular or 90 - 135 degree angle to beam

Question 5

Safety: Sheilding

Answer 5

never hold or stabilize receptor/tubehead

Question 6

Bite-Wings: Examine

Answer 6

interproximal surfaces of teeth; caries, restorations, bone

Question 7

Radiopaque

Answer 7

light/white; enamel, bone, cementum

Question 8

Radiolucent

Answer 8

dark/black; pulp,

Question 9

Bite-Wing: CR Angulation

Answer 9

+5 or +10 degrees vertical angulation; perpendicular to tooth

Question 10

Pre-molar Image:

Answer 10

max & mand premolars + distal contact of both canines

Question 11

Molar Image:

Answer 11

max and mand molars + distal contact of both 2nd premolars

Question 12

Bite-Wing Errors: Overlapped

Answer 12

incorrect horizontal angulation. CR not directed through interproximal space

Question 13

Bite-Wing Errors: Distorted Image

Answer 13

incorrect vertical angulation. unequal bone distribution

Question 14

Bite-Wing Errors: Cone Cut

Answer 14

PID not directed at center of receptor.

Question 15

Wilhelm Roentgen

Answer 15

inventor of “x” (unknown) ray. accidental. wife’s hand as 1st image.