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Test Bank for Dental Radiography Principles and Techniques, 6th Edition by Iannucci and Howerton
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Test Bank for Dental Radiography Principles and Techniques, 6th Edition by Iannucci and Howerton
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Test Bank for Dental Radiography Principles and Techniques, 6thEdition by Iannucci and Howerton
,Chapter 01: Radiation History
Iannucci: Dental Radiography, 6th Edition
MULTIPLE CHOICE
1. Radiation is defined as
a. a form of energy carried by waves or
streams of particles.
b. a beam of energy that has the power to
penetrate substances and record image
shadows on a receptor.
c. a high-energy radiation produced by the
collision of a beam of electrons with a
metal target in an x-ray tube.
d. a branch of medicine that deals with the
use of x-rays.
RIGHT ANS> A
REASON: Radiation is a form of energy carried by waves or streams of particles. An x-
ray is a beam of energy that has the power to penetrate substances and record image
shadows on a receptor. X-radiation is a high-energy radiation produced by the collision of
a beam of electrons with a metal target in an x-ray tube. Radiology is a branch of
medicine that deals with the use of x-rays.
DIF: Recall REF: Page 2 OBJECTIVE: 1
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of
radiophysics and radiobiology
2. A radiograph is defined as
a. a beam of energy that has the power to
penetrate substances and record image
shadows on a receptor.
b. a picture on film produced by the passage
of x-rays through an OBJECTIVEect or
body.
c. the art and science of making radiographs
by the exposure of an image receptor to x-
rays.
d. a form of energy carried by waves or a
stream of particles.
RIGHT ANS> B
REASON: An x-ray is a beam of energy that has the power to penetrate substances and
record image shadows on a receptor. A radiograph is a picture on film produced by the
passage of x- rays through an OBJECTIVEect or body. Radiography is the art and science
of making dental images by the exposure of a receptor to x-rays. Radiation is a form of
energy carried by waves or streams of particles.
,DIF: Comprehension REF: Page 2
OBJECTIVE: 1 TOP: CDA, RHS, III.B.2. Describe the
characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of
radiophysics and radiobiology
3. Your hospital patient asked you why dental images are important.
Which of the following is the correct response?
a. An oral examination with dental images
limits the practitioner to what is seen
clinically.
b. All dental diseases and conditions produce
clinical signs and symptoms.
c. Dental images are not a necessary
component of comprehensive hospital
patient care.
d. Many dental diseases are typically
discovered only through the use of dental
images.
RIGHT ANS> D
REASON: An oral examination without dental images limits the practitioner to what is
seen clinically. Many dental diseases and conditions produce no clinical signs and
symptoms. Dental images are a necessary component of comprehensive hospital patient
care. Many dental diseases are typically discovered only through the use of dental images.
DIF: Application REF: Page 2 OBJECTIVE: 2
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
4. The x-ray was discovered by
a. Heinrich Geissler
b. Wilhelm Roentgen
c. Johann Hittorf
d. William Crookes
RIGHT ANS> B
REASON: Heinrich Geissler built the first vacuum tube in 1838. Wilhelm Roentgen
discovered the x-ray on November 8, 1895. Johann Hittorf observed in 1870 that
discharges emitted from the negative electrode of a vacuum tube traveled in straight
lines, produced heat,
and resulted in a greenish fluorescence. William Crookes discovered in the late 1870s that
cathode rays were streams of charged particles.
DIF: Recall REF: Page 2 OBJECTIVE: 4
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
, 5. Who exposed the first dental radiograph in the United States using a live person?
a. Otto Walk off
b. Wilhelm Roentgen
c. Edmund Kells
d. Weston Price
RIGHT ANS> C
REASON: Otto Walk off was a German dentist who made the first dental radiograph.
Wilhelm Roentgen was a Bavarian physicist who discovered the x-ray. Edmund Kells
exposed the first dental radiograph in the United States using a live person. Price
introduced the bisecting technique in 1904.
DIF: Recall REF: Page 4 OBJECTIVE: 5
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
6. Current fast radiographic film requires % less exposure time than the
initial exposure times used in 1920.
a. 33
b. 98
c. 73
d. 2
RIGHT ANS> D
REASON: Current fast radiographic film requires 98% less exposure time than the initial
exposure times used in 1920.
DIF: Comprehension REF: Page 5
OBJECTIVE: 6 TOP: CDA, RHS, III.B.2. Describe the
characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
7. Who modified the paralleling technique with the introduction of the long-
cone technique?
a. C. Edmund Kells
b. Franklin W. McCormack
c. F. Gordon Fitzgerald
d. Howard Riley Raper
RIGHT ANS> C
REASON: Edmund Kells introduced the paralleling technique in 1896. Franklin W.
McCormack reintroduced the paralleling technique in 1920. F. Gordon Fitzgerald
modified the paralleling technique with the introduction of the long-cone technique. This
is the technique currently used. Howard Riley Raper modified the bisecting technique
and introduced the bite-wing technique in 1925.
DIF: Recall REF: Page 4 OBJECTIVE: 7
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
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