Ar
ch
TEST BANK - Dental Radiography:
Do
Principles and Techniques 6th Edition by
c
Joen Iannucci & Laura J. Howerton
VERIFIED CORRECT ANSWERS
WITH RATIONALES| CHAPTERS 1-35
1
, Ar
c
Chapter 01: Radiation History
h
MULTIPLE CHOICE
Do
1. Radiation is defined as
c
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.
CORRECT ANSWER> 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.
CORRECT ANSWER> 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
2
, Ar
c
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics and
h
radiobiology
Do
3. Your patient asked you why dental images are important. Which of the following is the correct
c
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.
CORRECT ANSWER> 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
CORRECT ANSWER> 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
3
, Ar
c
5. Who exposed the first dental radiograph in the United States using a live person?
h
a. Otto Walkoff
Do
b. Wilhelm Roentgen
c
c. Edmund Kells
d. Weston Price
CORRECT ANSWER> 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
CORRECT ANSWER> 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
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
4
ch
TEST BANK - Dental Radiography:
Do
Principles and Techniques 6th Edition by
c
Joen Iannucci & Laura J. Howerton
VERIFIED CORRECT ANSWERS
WITH RATIONALES| CHAPTERS 1-35
1
, Ar
c
Chapter 01: Radiation History
h
MULTIPLE CHOICE
Do
1. Radiation is defined as
c
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.
CORRECT ANSWER> 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.
CORRECT ANSWER> 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
2
, Ar
c
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics and
h
radiobiology
Do
3. Your patient asked you why dental images are important. Which of the following is the correct
c
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.
CORRECT ANSWER> 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
CORRECT ANSWER> 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
3
, Ar
c
5. Who exposed the first dental radiograph in the United States using a live person?
h
a. Otto Walkoff
Do
b. Wilhelm Roentgen
c
c. Edmund Kells
d. Weston Price
CORRECT ANSWER> 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
CORRECT ANSWER> 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
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
4
