CH 31 and 32 Vocabulary Flashcards Preview

Dental Assisting > CH 31 and 32 Vocabulary > Flashcards

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

Ala

the winged flare of the nostril

2

Cone Cut

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

Elongation

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

4

Foreshortening

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

5

Horizontal angulation

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

6

Overlapping

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

Perpendicular

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

8

Position Indicating Device (PID)

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

9

Tragus

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

10

Vertical angulation

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

11

Ala-tragus line

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

12

Anteroposterior plane

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

13

Edentulous

Without teeth

14

Frankfort plane

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

15

Intensifying screen

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

16

Lateral

From side

17

Midsagittal plane

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