Intra Oral films Flashcards Preview

Radiology > Intra Oral films > Flashcards

Flashcards in Intra Oral films Deck (29):
1

What are image techniques?

detailed cheat sheets for each exposure

2

How long are adult exposures

0.094 seconds

3

how long are paediatric exposures

0.062 seconds

4

what are the purposes of a full mouth survey

decrease error, decrease patient exposures, identify when retakes are necessary

5

What are bitewings used for

for inter proximal surfaces of posterior teeth

6

What needs to be visible in mand and max of bitewings

alveolar crests

7

What colour is used for the RINN instrument for bitewings

RED

8

What needs to be shown in a premolar bitewing

2-3 mm of the distal of the canine

9

what needs to be shown in the molar bitewing

the distal of the last molar tooth

10

what is the purpose of bitewings

to evaluate dentition for caries and periodontal bone loss

11

In premolar bitewings, what does the beam need to be perpendicular to

the receptor and inter proximal surfaces

12

in a premolar bitewing, what tip will help to capture whats necessary

line up to the canine and the MB of the first molar

13

in a molar bitewing, what tip will help to capture whats necessary

line up to the MB of the 1st molar and the MB of the 2M or the 3M

14

What does a good periapical have

visual on the crown and 2-3 mm surrounding the apices of the imaged dentition and none to little overlapping go dental structures, least amount of distortion

15

What is the purpose of periapicals

evaluation of dentoalveolar structures for pathology

16

What colour RINN instrument is used for anterior periapicals

Blue

17

How many periapicals does the textbook recommend? Clinic manual?

5 per arch, 4 per arch

18

what size film is used for anterior peri-apicals and how is it placed in the mouth

size 1, placed vertically

19

In anterior peri-apicals, what technique is when the beam is perpendicular to the long axis of the tooth and the receptor

parallel technique

20

in anterior, peri-apicals, what technique is used when the receptor and the long axis of the tooth are in line with each other

parallel technique

21

How many teeth can an anterior peri- apical capture

usually 2teeth ( max central incisors), 1 for laterals, 1 for canines, can do and centrolaterals

22

what colour instrument is used for posterior periapicals

yellow

23

To get all the max dentition what should the focal points be? (2)

center on first molar, center on second molar

24

To get all the mand dentition what should the focal points be? (2

partly on 1 and 2 molar, centre on 2M

25

What does the topographical occlusal rad include

all the teeth

26

why is a bisected angle technique preferable

tooth is actual size

27

In which technique is there inherent distortion

parallel technique

28

Which angles are bisected in Bisected angle technique

long axis of the tooth and the receptor

29

In bisected angle technique what is the beam perpendicular to

the imaginary bisector