TEST BANK FOR Dental Radiography: Principles and Techniques 6th Edition by Joen Iannucci, Laura Jansen Howerton ISBN: 978-0323695503 COMPLETE GUIDE WITH RATIONALES 100% VERIFIED A+ GRADE ASSURED!!!!NEW LATEST UPDATE!!!!

,Chapter 01: Radiation History
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Iannucci: Dental Radiography, 6th Edition
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MULTIPLE CHOICE d t




1. Radiation is defined as dt dt dt



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 i
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mage shadows on a receptor. dt dt dt dt



c. A high- dt



energy radiation produced by the collision of a beam of electrons with a metal target in an x-
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ray tube. dt



d. A branch of medicine that deals with the use of x-rays.
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ANSWER: A dt



Radiation is a form of energy carried by waves or streams of particles. An x-
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ray is a beam of energy that has the power to penetrate substances and record image shad ows on
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a receptor.
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X-radiation is a high- dt dt dt



Energy radiation produced by the collision of a beam of electrons with ametal target in an x-
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ray tube. Radiology is a branch of medicine that deals with the use of X-rays.
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DIF: Recall REF: Page 2 OBJ: 1 dt d t



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 radiophysic san
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d 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 i
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mage shadows on a receptor. dt dt dt dt



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 rec
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epto r tox-rays. dt dt



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



An x- dt



ray is a beam of energy that has the power to penetrate substances and record image shadows
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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 the exposure of a receptor to x-
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rays. Radiation is a form of energy carried by waves or streams of particles.
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DIF: Comprehension REF: Page 2 dt



OBJ: 1TOP: CDA, RHS, III.B.2. Describe the characteristics of dt dt d t dt dt dt dt dt dt dt



x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysic san
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d radiobiology
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3. Your patient asked you why dental images are important. Which of the following is th
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ecorrect response? dt



a. An oral examination with dental images limits the practitioner to what is se e
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nclinically. dt



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 den ta
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limages.
ANSWER: D d t



An oral examination without dental images limits the practitioner to what is seen clinically. Man
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y dental diseases and conditions produce no clinical signs and symptoms. Dental images are a n
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ecessary component of comprehensive patient care. Many dental diseases are typicall y disco
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vered only through the use of dental images.
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DIF: Application REF: Page 2 OBJ: 2 dt d t



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 dt



b. Wilhelm Roentgen dt



c. Johann Hittorf dt



d. William Crookes dt




ANSWER: B d t



Heinrich Geissler built the first vacuum tube in 1838. Wilhelm Roentgen discovered the x-
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ray on November 8, 1895. Johann Hittorf observed in 1870 that discharges emitted from th
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e negative electrode of a vacuum tube traveled in straight lines, produced heat, and resulted in a g
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reenish fluorescence. William Crookes discovered in the late 1870s that cathode rays were st
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reams of charged particles. dt dt dt




DIF: Recall REF: Page 2 OBJ: 4 dt d t



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



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 dt



b. Wilhelm Roentgen dt



c. Edmund Kells dt



d. Weston Price dt




ANSWER:C C d t



Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm Roentg en wa
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s a Bavarian physicist who discovered the x-
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ray. Edmund Kells exposed the first dental radiograph in the United States using a live pers o
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n. Price introduced the bisecting technique in 1904. dt dt dt dt dt dt




DIF: Recall REF: Page 4 OBJ: 5 dt d t



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 dt dt dt dt



% less exposure time than the initial exposuretimes used in 1920.
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a. 33
b. 98
c. 73

, d. 2
ANSWER: D d t



Current fast radiographic film requires 98% less exposure time than the initial exposure ti mesuse
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d in 1920.
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DIF: Comprehension REF: Page 5 dt



OBJ: 6TOP: CDA, RHS, III.B.2. Describe the characteristics of dt dt d t dt dt dt dt dt dt dt



x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
d t dt dt dt dt dt dt dt dt dt




7. Who modified the paralleling technique with the introduction of the long-cone technique?
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a. C. Edmund Kells dt dt



b. Franklin W. McCormack dt dt



c. F. Gordon Fitzgerald dt dt



d. Howard Riley Raper dt dt




ANSWER: C d t



C. Edmund Kells introduced the paralleling technique in 1896. Franklin W. McCormack r eint
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roduced the paralleling technique in 1920. F. Gordon Fitzgerald modified the parallelin gtechn
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ique with the introduction of the long-
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cone technique. This is the technique currently used. Howard Riley Raper modified the bi sect
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ing technique and introduced the bite-wing technique in 1925.
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DIF: Recall REF: Page 4 OBJ: 7 dt d t



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 following is an advantage of digital imaging?
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a. Increased patient radiation exposure dt dt dt



b. Increased patient comfort dt dt



c. Increased speed for viewing images dt dt dt dt



d. Increased chemical usage dt dt




ANSWER: C d t



Patient exposure is reduced with digital imaging. Digital sensors are more sensitive to
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x-
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rays than film. Digital sensors are rigid and bulky, causing decreased patient comfort. The i ma
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ge from digital sensors is uploaded directly to the computer and monitor without the nee d f
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or chemical processing. This allows for immediate interpretation and evaluation. The ima ge fr
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omdigital sensors is uploaded directly to the computer and monitor without the need f or c
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hemicalprocessing.

DIF: Comprehension REF: Page 6 dt



OBJ: 7 TOP: CDA, RHS, I.B.2. Demonstrate basic knowledge of di dt dt d t dt dt dt dt dt dt dt dt



gital radiography dt



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 dt



b. Alpha particles dt



c. Cathode rays dt



d. Radioactive materials dt




ANSWER: C d t