Techniques 6th Edition by Joen Iannucci & Laura
Jansen Howerton Chapters 1 - 35 | Complete
,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 imageshadows on a receptor.
c. a high-energy radiation produced by the collision of a beam of electrons
with ametal target in an x-ray tube.
d. a branch of medicine that deals with the use of x-rays.
ANSWER: A
Radiation is a form of energy carried by waves or streams of particles. An x-ray is a
beam ofenergy 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 ametal 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
radiophysicsand radiobiology
2. A radiograph is defined as
a. a beam of energy that has the power to penetrate substances and
record imageshadows 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 tox-rays.
d. a form of energy carried by waves or a stream of particles.
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 theexposure 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
radiophysicsand radiobiology
3. Your patient asked you why dental images are important. Which of the
following is thecorrect response?
a. An oral examination with dental images limits the practitioner to what
is seenclinically.
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
dentalimages.
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 imagesare 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
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 resultedin 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