test bank for dental radiography principles and te
dental radiography principles and techniques 5th
dental radiography principles
5th edition joen iannucci laura howerton
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Test Bank For Dental Radiography
Principles And Techniques, 5th
Edition, Joen Iannucci, Laura
Howerton
A+
,Chapter 01: Radiation History
Iannucci: Dental Radiography, 5th 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.
ANS: A
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 OBJ: 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 object 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.
ANS: B
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 object 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 OBJ: 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 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 patient care.
d. Many dental diseases are typically discovered only through the use of
dental images.
ANS: D
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 patient care. Many dental diseases are typically
discovered only through the use of dental images.
DIF: Application REF: Page 2 OBJ: 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
ANS: B
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 OBJ: 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 Walkoff
b. Wilhelm Roentgen
c. Edmund Kells
d. Weston Price
ANS: C
Otto Walkoff 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 OBJ: 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
ANS: D
Current fast radiographic film requires 98% less exposure time than the initial exposure times
used in 1920.
DIF: Comprehension REF: Page 5 OBJ: 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
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