EXTRA film+

Question 1

Film: Base

Answer 1

transparent, blue tinted, .2mm thick

Question 2

Film: Emulsion

Answer 2

Gelatin + halide crystals

Question 3

Phosphors

Answer 3

embedded in intensifying screens for Extraoral film, stores energy to be released as light

Question 4

Film storage

Answer 4

50-70º, 30-50% humidity, check expiration, rotate stock

Question 5

Dark Room

Answer 5

light safe, 70º (too high = fogging), 50-70% humidity (too high = static electricity)

Question 6

Accelerator

Answer 6

[developer] sodium carbonate - activates, softens gelatin, provides alkaline environment

Question 7

Restrainer

Answer 7

[developer] potassium bromide - controls, prevents fogging

Question 8

Preservative

Answer 8

[developer] Sodium sulfate - prevents oxidation in air

Question 9

Fixing Agent

Answer 9

[fixer] sodium/ammonium thiosulfate - clears silver halide crystals

Question 10

Acidifier

Answer 10

[fixer] Sulfuric/acetic acid - neutralizes alkalinity from developer

Question 11

Hardener

Answer 11

[fixer] potassium alum - shrinks/hardens emulsion

Question 12

Preservative

Answer 12

[fixer] sodium sulfate

Question 13

Occlusal Projections

Answer 13

Topographical, Lateral, Pediatric, Cross Section

Question 14

Topographical OP

Answer 14

examines palate/anterior maxilla; or anteriors of mandible

Question 15

Lateral OP

Answer 15

left or right ; examines palatal roots of maxillary molars

Question 16

Pediatric

Answer 16

<5yo, examines anterior teeth of max or mand

Question 17

Cross Section

Answer 17

buccal/lingual aspects of mandible; or foreign bodies/salivary stones

Question 18

Localization Techniques

Answer 18

SLOB or right angle

Question 19

Right Angle Localization Technique

Answer 19

compare PA and Cross Sectional image

Question 20

Labial Mounting

Answer 20

raised dot, preferred method