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PRINCIPLES AND TECHNIQUES, 5TH EDITION, JOEN
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IANNUCCI, LAURA HOWERTON FULL TESTBANK
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ALL CHAPTERS INCLUDED|| LATEST AND
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COMPLETE UPDATE 2025 GRADED A+
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TESTBANK
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TEST BANK FOR DENTAL RADIOGRAPHY PRINCIPLES AND
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TECHNIQUES, 5TH EDITION, JOEN IANNUCCI, LAURA
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HOWERTON FULL TESTBANK ALL CHAPTERS INCLUDED||
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LATEST AND COMPLETE UPDATE 2025 GRADED A+
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Chapter 01: Radiation History f f f
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1. Radiation is defined as ff ff ff
a. a form of energy carried by waves or streams of particles.
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b. a beam of energy that has the power to penetrate substances and record image
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shadows on a receptor.
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c. a high-energy radiation produced by the collision of a beam of electrons with a metal
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target in an x-ray tube.
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d. a branch of medicine that deals with the use of x-rays.
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ANSWER- A f f
Radiation is a form of energy carried by waves or streams of particles. An x-ray is a beam of
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energy that has the power to penetrate substances and record image shadows on a receptor.
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X-radiation is a high-energy radiation produced by the collision of a beam of electrons with a
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metal target in an x-ray tube. Radiology is a branch of medicine that deals with the use of
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x-rays.
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics
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and radiobiology
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2. A radiograph is defined as
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a. a beam of energy that has the power to penetrate substances and record image
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shadows on a receptor.
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b. a picture on film produced by the passage of x-rays through an object or body.
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c. the art and science of making radiographs by the exposure of an image receptor to x-rays.
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d. a form of energy carried by waves or a stream of particles.
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ANSWER- B f f
An x-ray is a beam of energy that has the power to penetrate substances and record image
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shadows on a receptor. A radiograph is a picture on film produced by the passage of x-rays
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through an object or body. Radiography is the art and science of making dental images by the
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exposure of a receptor to x-rays. Radiation is a form of energy carried by waves or streams of
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particles.
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characteristics of x-radiation
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics
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and radiobiology
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3. Your patient asked you why dental images are important. Which of the following is the
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correct response?
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a. An oral examination with dental images limits the practitioner to what is seen clinically.
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b. All dental diseases and conditions produce clinical signs and symptoms.
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c. Dental images are not a necessary component of comprehensive patient care.
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d. Many dental diseases are typically discovered only through the use of dental images.
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ANSWER- D f f
An oral examination without dental images limits the practitioner to what is seen clinically.
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Many dental diseases and conditions produce no clinical signs and symptoms. Dental images are
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a necessary component of comprehensive patient care. Many dental diseases are typically
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discovered only through the use of dental images.
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
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4. The x-ray was discovered by
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a. Heinrich Geissler ff
b. Wilhelm Roentgen ff
c. Johann Hittorf ff
d. William Crookes ff
ANSWER- B f f
Heinrich Geissler built the first vacuum tube in 1838. Wilhelm Roentgen discovered the
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x-ray on November 8, 1895. Johann Hittorf observed in 1870 that discharges emitted from the
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negative electrode of a vacuum tube traveled in straight lines, produced heat, and resulted in a
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greenish fluorescence. William Crookes discovered in the late 1870s that cathode rays were
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streams of charged particles.
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
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5. Who exposed the first dental radiograph in the United States using a live person?
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a. Otto Walkoff ff
b. Wilhelm Roentgen ff
c. Edmund Kells ff
d. Weston Price ff
ANSWER- C f f
Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm Roentgen
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was a Bavarian physicist who discovered the x-ray. Edmund Kells exposed the first dental
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radiograph in the United States using a live person. Price introduced the bisecting technique in
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1904.
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