Types of Radiographs and Film Holders

Question 1

What are 2 examples of extraoral radiographs?

Answer 1

1. ) Panoramic (Pan)

2. ) Cephalometric (Ceph)

Question 2

Film packets come in what sizes?

Answer 2

0-4

Question 3

Children under 6 years old, should have what size film packets used for anterior/posterior, bitewing, and occlusal radiographs?

Answer 3

Anterior/Posterior: Size 0 or 1
Bitewing: Size 0
Occlusal: Size 2

Question 4

Children 6-12 years old, should have what size film packets used for anterior/posterior, bitewing, and occlusal radiographs?

Answer 4

Posterior: 0 or 2
Anterior: 0 or 1
Bitewing: 2
Occlusal: 2

Question 5

Adults should have what size film packets used for posterior periapicals, anterior periapicals when paralelling, anterior periapicals when bisecting, bitewings, and occlusals?

Answer 5

Posterior Periapical: 2
Anterior Periapical (Paralelling): 1 or 2
Anterior Periapical (Bisecting): 2
Bitewing: 2 or 3
Occlusal: 4

Question 6

What letter film speed is the fastest and has the shortest wave length?

Answer 6

F-Speed

Question 7

F-Speed can reduce patient exposure by what percentage?

Answer 7

60%

Question 8

What are 4 examples of film holders?

Answer 8

1. ) Snap-A-Ray (Bite block device)
2. ) Hemostat
3. ) Uni-Bite
4. ) Endo-ray II

Question 9

Name 2 times you may use a hemostat film holder.

Answer 9

1. ) Endodontic radiographs

2. ) When there is limited space

Question 10

Name 3 times you may use a Uni-Bite film holder.

Answer 10

When taking radiographs of:

1. ) Anterior
2. ) Posterior
3. ) Bitewings with paralleling

Question 11

What is the XCP used for?

Answer 11

Designed for use with paralleling and bisecting techniques.

Question 12

What 3 things does the XCP consist of?

Answer 12

1. ) Bite blocks
2. ) Extension rods
3. ) Locator ring

Question 13

What is the purpose of the locator ring in the XCP?

Answer 13

Helps align PID with film in the patients mouth.

Question 14

When used properly, what can the XCP reduce?

Answer 14

Cone cutting.

Question 15

Stable bite blocks are disposable. What are 2 reasons for using them?

Answer 15

1. ) For periapical exposures of the anterior and posterior areas of the oral cavity
2. ) For either paralleling or bisecting

Question 16

What 2 things are bitewing tabs made of?

Answer 16

1. ) Paper loops

2. ) Adhesive tabs

Question 17

What is the purpose for using bitewing tabs?

Answer 17

To stabilize interproximal bitewing films during exposure. These are helpful with children or patients with small mouths, or excess tori.

Question 18

What is a cassette?

Answer 18

A light tight envelope or metal frame which surrounds an extraoral film.

Question 19

What is the purpose of the black paper wrapping on an X-ray film packet?

Answer 19

Protect the film from light exposure.

Question 20

What are the 2 purposes of the lead foil sheet?

Answer 20

1. ) Shields film from scatter radiation

2. ) Reduces film fogging

Question 21

What is the double ended film holder that is used for anterior teeth?

Answer 21

Eezee-Grip

Question 22

The ADA classifies intraoral films by a number that combines what 2 things?

Answer 22

1. ) The type of film

2. ) The size of the film

Question 23

Periapical films classifications are generically represented by _______, where x is what?

Answer 23

1.x, and x is the size of the film

Question 24

Bitewing film classifications are generically represented by ______, where is w is what?

Answer 24

2.x, and x is the size of the film

Question 25

There is one type of standard occlusal film. What is the size represented as?

Answer 25

3.4

Question 26

What area of the tooth is the periapical film used to capture? There are 3 areas.

Answer 26

1. ) Apical or top area of the tooth 2. ) Nearby bone structures 3. ) Crown

Question 27

Periapical films come in 3 sizes. One size is for children, and 2 sizes are used for adults. Name the sizes used for each person, and corresponding areas of the mouth that they are used for.

Answer 27

1. ) Size 0 is used for children, posterior and anterior | 2. ) Size 1 and 2 are used for adults. Size 1 is used for anterior, and size 2 is used for posterior.

Question 28

Films come in sizes 1-4. What size is usually used for an occlusal film? What size can also be used.

Answer 28

Size 3 is usually used, but size 4 can also be used.

Question 29

What size film is used for both bitewings and vertical bitewings?

Answer 29

Size 2

Question 30

What are the 3 types of intraoral radiographs?

Answer 30

1. ) Bitewing 2. ) Periapical 3. ) Occlusal

Question 31

During a periapical X-ray, the entire tooth and root should be captured. How many millimeters of the periapical bone should be recorded?

Answer 31

At least 2mm

Question 32

What does CMX stand for?

Answer 32

Complete-Mouth