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 ap




1. Radiation is defined as ap ap ap



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. ap ap ap ap



c. A high- ap



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



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



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 o
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n a receptor.
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X-radiation is a high- ap ap ap



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 ap a p



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 sa
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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 i
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mage shadows on a receptor. ap ap ap ap



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 r
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ecepto r tox-rays. ap ap



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



An x- ap



ray is a beam of energy that has the power to penetrate substances and record image shado
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ws 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 imag
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es 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 ap



OBJ: 1TOP: CDA, RHS, III.B.2. Describe the characteristics of ap ap a p ap ap ap ap ap ap a



x-radiation
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MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysic sa
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nd radiobiology
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3. Your patient asked you why dental images are important. Which of the following is t
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hecorrect response? ap



a. An oral examination with dental images limits the practitioner to what is se
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enclinically. ap



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 t
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alimages.
ANSWER: D a p



An oral examination without dental images limits the practitioner to what is seen clinically. Ma
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ny dental diseases and conditions produce no clinical signs and symptoms. Dental images are a
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pnecessary component of comprehensive patient care. Many dental diseases are typicall y di
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scovered only through the use of dental images.ap ap ap ap ap ap ap




DIF: Application REF: Page 2 OBJ: 2 ap a p



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 ap



b. Wilhelm Roentgen ap



c. Johann Hittorf ap



d. William Crookes ap




ANSWER: B a p



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
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the negative electrode of a vacuum tube traveled in straight lines, produced heat, and resulted in
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a greenish fluorescence. William Crookes discovered in the late 1870s that cathode rays we
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re streams of charged particles.
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DIF: Recall REF: Page 2 OBJ: 4 ap a p



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 ap



b. Wilhelm Roentgen ap



c. Edmund Kells ap



d. Weston Price ap




ANSWER:C C a p



Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm Roentg en w
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as 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
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on. Price introduced the bisecting technique in 1904. ap ap ap ap ap ap




DIF: Recall REF: Page 4 OBJ: 5 ap a p



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 ap ap ap ap



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

, d. 2
ANSWER: D a p



Current fast radiographic film requires 98% less exposure time than the initial exposure ti mesu
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sed in 1920. ap ap




DIF: Comprehension REF: Page 5 ap



OBJ: 6TOP: CDA, RHS, III.B.2. Describe the characteristics of
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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 ap ap



b. Franklin W. McCormack ap ap



c. F. Gordon Fitzgerald ap ap



d. Howard Riley Raper ap ap




ANSWER: C a p



C. Edmund Kells introduced the paralleling technique in 1896. Franklin W. McCormack r ei
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ntroduced the paralleling technique in 1920. F. Gordon Fitzgerald modified the parallelin gte
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chnique with the introduction of the long-ap ap ap ap ap ap



cone technique. This is the technique currently used. Howard Riley Raper modified the bi se
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cting technique and introduced the bite-wing technique in 1925.
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DIF: Recall REF: Page 4 OBJ: 7 ap a p



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 ap ap ap



b. Increased patient comfort ap ap



c. Increased speed for viewing images ap ap ap ap



d. Increased chemical usage ap ap




ANSWER: C a p



Patient exposure is reduced with digital imaging. Digital sensors are more sensitive t
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o x- a p



rays than film. Digital sensors are rigid and bulky, causing decreased patient comfort. The i m
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age from digital sensors is uploaded directly to the computer and monitor without the nee
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d for chemical processing. This allows for immediate interpretation and evaluation. The ima g
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e fromdigital sensors is uploaded directly to the computer and monitor without the need
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f or chemicalprocessing.
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DIF: Comprehension REF: Page 6 ap



OBJ: 7 TOP: CDA, RHS, I.B.2. Demonstrate basic knowledge of di
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gital 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 ap



b. Alpha particles ap



c. Cathode rays ap



d. Radioactive materials ap




ANSWER: C a p