Ch.41

Question 1

When taking an x-ray the ___________ technique provides the most accurate image with the least amount of radiation exposure to the patient

Answer 1

Paralleling

Question 2

How many anterior x-rays are taken when using the paralleling technique with a size 2 film?

Answer 2

6

Question 3

When placing film the identification dot on the film is always placed in the ___________

Question 4

Why would the dentist have you take x-rays on an edentulous patient?

Answer 4

Detecting retained root tips, impacted teeth, and lesion

Question 5

What type of images help manage a patients gag relax?

Answer 5

Extraoral

Question 6

Using the ___________ technique, the central ray of the x-ray beam must be perpendicular to the film sensor and the long axis of the tooth

Answer 6

Paralleling

Question 7

The ___________ technique is used for the patient that has a small mouth, tori, or low palatial vaults

Answer 7

Bisecting

Question 8

What type of angulation differs according to whether the paralleling or bisecting technique is being used?

Answer 8

Vertical undulation

Question 9

What is the number of bitewing based on?

Answer 9

The number of teeth present in the posterior
The curvature of the arch

Question 10

What should the DA put on the patient’s radiograph mount before mounting the x-ray?

Question 11

The __________ x-ray is used for detecting interproximal decay

Answer 11

Bitewing

Question 12

Film must be positioned parallel to the long access of tooth to minimize image ____________.

Answer 12

Distortion

Question 13

When using the ___________ technique, the angulation of the PID is critical to ensure the central ray is perpendicular to the bisector line

Answer 13

Bisecting

Question 14

What type of tooth should the molar bitewing image centered over?

Answer 14

Second Molar

Question 15

The number of teeth present in the patients mouth determines the ____________

Answer 15

Number of x-rays to make a full mouth series

Question 16

How many posterior PA’s are taken in an FMX using the paralleling technique

Answer 16

8

Question 17

What does the bisecting, angle instrument (BA) use to determine the correct PID angluation?

Answer 17

Aiming Rings

Question 18

When taking x-rays on an adult patient the anterior films/sensors are in the _________ position and the posterior films/sensors are in the __________ position

Answer 18

Vertical : Horizontal

Question 19

What side of the film is placed towards the teeth?

Question 20

An adult FMX consist of ____________ to __________ images

Answer 20

18 to 20

Question 21

When taking an PA x-rays using the paralleling technique, where should the DA start?

Answer 21

With Anterior teeth

Question 22

What air causes overlapping in the contact areas of the bitewing x-ray

Answer 22

Incorrect, horizontal angulation

Question 23

Size 4 x-rays are used for taking a ___________ image on an adult

Answer 23

Occlusal

Question 24

What teeth should be exposed last if your patient has hyper sensitive, gag reflex

Answer 24

The maxillary molars

Question 25

Full mouth survey (FMX) contains both ___________ and ___________ images

Answer 25

Bitewing and periapical

Question 26

What is the best to start with interior teeth when taking PAs?

Answer 26

Patients are less likely to gag with an image receptor

Question 27

_______________ is the term used to describe the alignment of the central ray of the x-ray beam in the horizontal and vertical planes

Answer 27

Angulation

Question 28

When taking PAs x-rays, the patient’s head is upright for the ___________ films and tilted back slightly for the __________ arch

Answer 28

Maxillary and mandibular

Question 29

When taking a premolar bitewing image, you should get the distal edge of anterior _________

Answer 29

Canine