Test Bank For Dental Radiography Principles And Techniques,( 6th Edition 2024), By Joen Iannucci ,Laura Howerton||ALL CHAPTERS INCLUDED||CORRECT ANSWERS WITH RATIONALES

TEST BANK For Dental Radiography:
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Principles and Techniques 6th Edition
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by Joen Iannucci & Laura Jansen Howerton
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Chapters 1 - 35 | Complete
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,Chapter 01: Radiation History
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Iannucci: Dental Radiography, 6th Edition
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MULTIPLE CHOICE gh




1. Radiation is defined as gh gh gh



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
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gh imageshadows on a receptor. hg gh gh gh



c. a high-energy radiation produced by the collision of a beam of electrons
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gh with ametal 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 gh



Radiation is a form of energy carried by waves or streams of particles. An x-ray is a beam
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ofenergy that has the power to penetrate substances and record image shadows on a
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receptor.
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X-radiation is a high-energy radiation produced by the collision of a beam of electrons with
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ametal target in an x-ray tube. Radiology is a branch of medicine that deals with the use of
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x-rays.

DIF: Recall REF: Page 2 OBJ: 1 gh gh g h gh g h



TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of
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radiophysicsa nd 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
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imageshadows 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
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tox-rays. gh hg



d. a form of energy carried by waves or a stream of particles.
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ANSWER: B gh



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-
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rays through an object or body. Radiography is the art and science of making dental images
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by theexposure of a receptor to x-rays. Radiation is a form of energy carried by waves
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or streams of particles.
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DIF: Comprehension REF: Page 2 OBJ: gh gh g h gh



1TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of
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radiophysicsa nd radiobiology
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3. Your patient asked you why dental images are important. Which of the following is
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thecorrect response?
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a. An oral examination with dental images limits the practitioner to what is
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seenclinically.
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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
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gh dentalimages. hg




ANSWER: D gh



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
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imagesare a necessary component of comprehensive patient care. Many dental diseases are
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typically discovered only through the use of dental images.
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DIF: Application REF: Page 2 OBJ: 2 gh gh g h gh g h



TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
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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 gh



b. Wilhelm Roentgen gh



c. Johann Hittorf gh



d. William Crookes gh




ANSWER: B gh



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
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the negative electrode of a vacuum tube traveled in straight lines, produced heat, and
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resultedin a greenish fluorescence. William Crookes discovered in the late 1870s that
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cathode rays were streams of charged particles.
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DIF: Recall REF: Page 2 OBJ: 4 gh gh g h gh g h



TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
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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 gh



b. Wilhelm Roentgen gh



c. Edmund Kells gh



d. Weston Price gh




ANSWER: g h C
Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm
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Roentgenwas a Bavarian physicist who discovered the x-ray. Edmund Kells exposed the
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first dental radiograph in the United States using a live person. Price introduced the
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bisecting technique in 1904.
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DIF: Recall REF: Page 4 OBJ: 5 gh gh g h gh g h



TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
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6. Current fast radiographic film requires
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exposuretimes used in 1920.
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a. 33
b. 98
c. 73

, d. 2

ANSWER: D gh



Current fast radiographic film requires 98% less exposure time than the initial exposure
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timesused in 1920.
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DIF: Comprehension REF: Page 5 OBJ: gh gh g h gh



6TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
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7. Who modified the paralleling technique with the introduction of the long-cone technique?
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a. C. Edmund Kells gh gh



b. Franklin W. McCormack gh gh



c. F. Gordon Fitzgerald gh gh



d. Howard Riley Raper gh gh




ANSWER: C gh



C. Edmund Kells introduced the paralleling technique in 1896. Franklin W. McCormack
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reintroduced the paralleling technique in 1920. F. Gordon Fitzgerald modified the
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parallelingtechnique with the introduction of the long-cone technique. This is the
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technique currently used. Howard Riley Raper modified the bisecting technique and
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introduced the bite-wing technique in 1925.
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DIF: Recall REF: Page 4 OBJ: 7 gh gh g h gh g h



TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
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8. Which of the gh gh gh following is an advantage of digital imaging? gh gh gh gh gh gh



a. Increased gh patient radiation exposure gh gh



b. Increased gh patient comfort gh



c. Increased gh speed for viewing images gh gh gh



d. Increased gh chemical usage gh




ANSWER: C gh



Patient exposure is reduced with digital imaging. Digital sensors are more sensitive to x-
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rays than film. Digital sensors are rigid and bulky, causing decreased patient comfort. The
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image from digital sensors is uploaded directly to the computer and monitor without the
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need for chemical processing. This allows for immediate interpretation and evaluation. The
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image fromdigital sensors is uploaded directly to the computer and monitor without the
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need for chemicalprocessing.
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DIF: Comprehension REF: Page 6 OBJ: 7 gh gh g h gh gh



TOP: CDA, RHS, I.B.2. Demonstrate basic knowledge of digital
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radiography
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
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9. Which discovery was the precursor to the discovery of x-rays?
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a. Beta particles gh



b. Alpha particles gh



c. Cathode rays gh



d. Radioactive materials gh




ANSWER: C gh