CH 31 and 32 Vocabulary Flashcards Preview

Dental Assisting > CH 31 and 32 Vocabulary > Flashcards

Flashcards in CH 31 and 32 Vocabulary Deck (17)
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1
Q

Ala

A

the winged flare of the nostril

2
Q

Cone Cut

A

An error created when only part of an image is seen on a radiograph due to improper alignment of the PID with the film.

3
Q

Elongation

A

A vertical angulation error that occurs when there is insufficient vertical angulation of the PID to the film.

4
Q

Foreshortening

A

A vertical angulation error that occurs when there is excessive vertical angulation of the PID to the film.

5
Q

Horizontal angulation

A

Proper alignment of the PID in a side-to-side or back-and-forth direction.

6
Q

Overlapping

A

A horizontal angulation error that occurs when the x-ray beam is not at 90 degrees to the tooth and film packet and images from two adjacent structures are superimposed on top of each other.

7
Q

Perpendicular

A

Intersecting at or forming a right angle to the tooth and film packet, crating a corner. (opposite of parallel)

8
Q

Position Indicating Device (PID)

A

A cylinder affixed to the tube head that is used to align the xray with the film in the patients mouth.

9
Q

Tragus

A

The prominence of tissue located toward the middle opening of the ear.

10
Q

Vertical angulation

A

Proper alignment of the PID in an up and down direction.

11
Q

Ala-tragus line

A

Line that runs from the winged flare of the nostril (ala) to the opening of the ear (tragus)

12
Q

Anteroposterior plane

A

A forward-backward plane that is aligned with a specific landmark.

13
Q

Edentulous

A

Without teeth

14
Q

Frankfort plane

A

A horizontal line from the upper margin on the ear to the lower margin of the eye orbit.

15
Q

Intensifying screen

A

Screen used to expose sheet film to the light when activated by radiation

16
Q

Lateral

A

From side

17
Q

Midsagittal plane

A

A horizontal line perpendicular to the floor, divides the body into 2 equal parts; right and left halves.