Radiology M3 - R5 : Radiography techniques Flashcards Preview

Dentistry Module 3 > Radiology M3 - R5 : Radiography techniques > Flashcards

Flashcards in Radiology M3 - R5 : Radiography techniques Deck (23)
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1
Q

what are the three types of intra-oral X rays

A

periapical

bitewing - horizontal + vertical

Occlusal - maxilla and mandible

2
Q

what are the three types of Extra oral radiograpgh

A

Dental panoramic tomogram - DPT

lateral Cephalgram

Posterior - Anterior mandibe

3
Q

which radiograpghy technique would you use to detect - apical inflammation/infection

A

periapical

4
Q

which radiograpghy technique would you use to detect - periodontal problems

A

periapical

5
Q

which radiograpghy technique would you use to detect - trauma fractures to tooth/surrounding bone

A

periapical

6
Q

which radiograpghy technique would you use to detect - presence/position of unerupted teeth

A

periapical

7
Q

which radiograpghy technique would you use to detect - tooth morphology pre extraction

A

periapical

8
Q

which radiograpghy technique would you use to detect - endodontics

A

periapical

9
Q

which radiograpghy technique would you use to detect - pre/post apical surgery

A

periapical

10
Q

which radiograpghy technique would you use to detect - evaluation of implants

A

periapical

11
Q

name this technique being used

A

parralleling technique

12
Q

in the parlleling technique what is used to facilitate positioning

A

uses holders to facilitate positioning

13
Q

in the paralleling technique where would the receptor be located

A

parallel to the tooth

14
Q

name this technique

A

bisected angle

  • operator dependant
  • not reproducable
  • can be done without a holder
15
Q

holders consist of three parts what are they

A
  1. bite block - retain the receptor
  2. an indicator arm/rod - fits in to the bite block
  3. an aiming ring - slides on the arm to establish alignment of collimator with receptor
16
Q

there are two types of holders what are they

A

anterior and posterior

blue = anterior

yellow = posterior

17
Q

receptor tooth relationship - the long axis of the film should be parallel to what

A

the tooth

18
Q

what will occur if a radiograpgh is taken when the tooth and receptor are not parallel vertically

A

distortion of image occurs

19
Q

what does the image indicate

A

image shows elongation has occured. this is due to the vertical axis of the tooth and the receptor not being parallel.

20
Q

what does this image show

A

poor angulation has resulted in elongation

21
Q

what does this image show

A

poor angulation resulting in fore-shortening

22
Q

what would you look for to determine left and right on a radiograph

A

orientation dot

23
Q
A