stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Radiology chapter 41 Flashcards | StudBud
Explore
/
Radiology chapter 41
Radiology chapter 41
46 terms
·
StudBud Administration
·
29 plays
Imported from external platform
Flashcards
46 cards
F
Practice quiz
P
Host live
L
Questions
46
Answers
1
The horizontal bitewing view is used for detecting:
interproximal caries.
unerupted third molar teeth.
devital abscessed teeth.
bone loss associated with advanced periodontal disease.
2
When taking radiographs using film, the white side of the film is always placed:
toward the teeth.
away from the teeth.
either away from or toward the teeth; it does not matter
right next to the teeth being radiographed.
3
Occlusal radiographs can be used for:
checking for infections at the apex of the teeth.
locating retained roots of extracted teeth
detecting decay.
checking bone levels between the teeth
4
When using a #2 film sensor for anterior views using the paralleling technique, the number of anterior images taken is:
seven
eight
six
four
5
An anterior set of images includes:
canines and premolars.
premolars and molars.
canines and incisors.
incisors and molars.
6
Radiographic images on an edentulous patient might be required for the detection of:
retained root tips, impacted teeth, and lesions.
a periapical abscess.
interproximal caries.
defective margins on crowns.
7
The exposure sequence for the posterior teeth should begin with the _____ right _____ view.
maxillary; premolar
maxillary; molar
mandibular; premolar
mandibular; molar
8
alignment of xray beam in horizontal&vertical planes formed by the long axis of teeth&film sensor placement is
paralleling
interproximal
angulation
perpendicular
9
What size of dental film is used for imaging the anterior region of the mouth with the paralleling technique
#1
#4
#3
#2
10
An intraoral full-mouth survey on an adult consists of _____ images
4 to 6
10 to 12
2 to 4
18 to 20
11
When taking a premolar bitewing image, the anterior edge of the film sensor should be placed:
on the distal half of the canine
on the distal half of the lateral incisor
in the middle of the first premolar
on the mesial surface of the second premolar.
12
To correct an elongated image on an x-ray view, the vertical angulation needs to be:
increased
lowered
flattened
decreased
13
The film sensor is placed in the mouth parallel to the crowns of both the maxillary and the mandibular teeth.
False
True
14
Horizontal angulation is:
correct when the central ray is parallel to the curvature of the arch
different when using the paralleling and bisecting techniques
the side-to-side angulation.
determined by the Stabe bite-block.
15
One reason the bisecting technique is used is:
allows the least amount of radiation to be used to produce a quality image
this technique provides the most accurate image.
recommended by the American Academy of Oral and Maxillofacial Radiology
when patients have small mouths or low palatal vaults.
16
The American Dental Association recommends that films be mounted:
with the concave portion of the dot facing up.
so the patient’s left side is on the viewer’s left side.
as if the viewer is standing on the patient’s tongue.
according to the labial mounting method.
17
Angulation of the PID is critical to ensure the central ray is perpendicular to bisector line in which techniques
Bisecting
Long-cone
Paralleling
Periapical
18
When using an x-ray sensor, it is important to always:
make sure the sensor is against the teeth being radiographed.
place cotton roll between the sensor&teeth being xrayed to protect sensor
place the sensor parallel to the incisal or occlusal edge of the teeth.
use the bisecting technique.
19
The film sensor is placed away from the teeth being exposed, more toward the middle of the mouth.
False
True
20
Insufficient vertical angulation can result in an image that is:
elongated
horizontally overlapped.
distorted
foreshortened
21
the film sensor must be placed directly against the teeth being exposed.
False
True
22
size #2 film sensor is used anterior films r in the _position&the posterior films/sensors are in the _position
horizontal; vertical
vertical; vertical
vertical; horizontal
horizontal; horizontal
23
When mounting radiographs, it is important to:
work under the safelight in the darkroom
label the mount with the patient’s name and date before mounting the films
wear nitrile gloves.
disinfect the radiographs with a surface disinfectant using spray wipe tech
24
To minimize image distortion, the:
central ray of xray beam must b directed parallel to long axis of tooth
film must be positioned perpendicular to the long axis of the tooth.
central ray of the x-ray beam must be directed parallel to the film.
film must be positioned parallel to the long axis of the tooth.
25
The identification dot on the film is always placed in the slot of the film holder.
True
False
26
Which technique can be used in situations such as a small mouth, shallow palate, or the presence of tori
Bisecting technique
Bitewing technique
Paralleling technique
Long-cone technique
27
If central ray of the xray beam isnt centered on the film sensor a partial image will result on the film sensor which is
elongated image.
herringbone image.
blurred image.
cone cut.
28
What is the usual number of posterior film sensor images taken in the parallel technique?
4
6
8
2
29
The number of bitewing films needed is based on the curvature of the arch and the:
size of the patient’s mouth.
age of the patient.
number of teeth present in the posterior areas.
number of periapical images taken.
30
The dental assistant exposing a periapical film sensor using the paralleling technique should always start with the:
upper teeth.
anterior teeth.
lower teeth.
molars
31
The bitewing view shows the:
mandibular canal.
whole tooth crown to apex and surrounding bone.
hamular notch distal to the maxillary third molar.
crowns and interproximal areas of the maxillary and mandibular teeth.
32
An intraoral full-mouth survey contains:
periapical images but not bitewing images.
neither periapical nor bitewing images.
both periapical and bitewing images.
bitewing images but not periapical images
33
The major difference between the paralleling technique and the bisecting technique is image receptor:
sensitivity
type
size
placement
34
periapical view show tooth frm occlusal surface/incisal edge to about ___mm beyond the apex to show the periapical bone
3 to 4
0 to 1
1 to 2
2 to 3
35
The correct sequence for creation of dental radiographic images is:
image receptor placement, processing, exposure
processing, image receptor placement, exposure.
exposure, image receptor placement, processing.
image receptor placement, exposure, processing.
36
The bisecting-angle instrument (BAI) uses _____ to determine the correct PID angulation.
dental dams
aiming rings
indicator arms
bite-blocks
37
When taking periapical x-rays, the patient’s head is _____ for maxillary films and _____ for the mandibular arch.
upright; upright
tilted back slightly; tilted back slightly
upright; tilted back slightly
tilted back slightly; upright
38
The number of x-ray views that makes a patient’s full-mouth series depends on the:
number of teeth present in the patient’s mouth.
presence of active periodontitis.
frequency of the insurance benefit.
history of interproximal caries.
39
For the patient with a hypersensitive gag reflex, the teeth that should be exposed last are:
maxillary premolars.
maxillary molars.
mandibular molars.
mandibular anteriors.
40
In adults, a size #___ intraoral film is used for the occlusal technique.
4
0
2
1
41
Incorrect horizontal angulation of the PID results in:
overlapped contact areas.
blurred images.
foreshortening
elongation
42
paralleling technique the central ray of the x-ray beam must b _to the film sensor& long axis of the tooth
parallel
perpendicular
intersecting
interproximal
43
The molar bitewing image should be centered over the:
second premolar.
first molar.
third molar.
second molar.
44
When using#1 film sensor for anterior images using paralleling technique_maxillary and _mandibular images are exposed
six; four
three; four
five; four
four; three
45
One technique for the management of the patient with an uncontrollable gag reflex is to:
place the image receptor for posterior images prior to anterior images.
use extraoral images.
slide sensor along the soft palate to minimize eliciting the gag reflex
position the film sensor slowly.
46
A radiographic mount should always be labeled with the:
patient’s name and the date the images were processed.
patient’s name.
operator’s name.
patient’s name and the date the images were exposed.
