Test Bank For Dental Radiography Principles And Techniques, 5th Edition, Joen Iannucci, Laura Howerton

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Test Bank For Dental Radiography Principles And
Techniques, 5th Edition, Joen Iannucci, Laura Howerton

,https://www.stuvia.com/




Chapter 01: Radiation History
Iannucci: Dental Radiography, 5th 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 image
shadows on a receptor.
c. a high-energy radiation produced by the collision of a beam of electrons with a
metal target in an x-ray tube.
d. a branch of medicine that deals with the use of x-rays.
ANS: A
Radiation is a form of energy carried by waves or streams of particles. An x-ray is a beam of
energy 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 a
metal 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 radiophysics
and radiobiology
t t




2. Aradiograph isdefined as
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a. abeamofenergythathasthepowertopenetratesubstancesand recordimage
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shadows on a receptor.
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b. apicture on film produced bythe passage of x-rays through an object or body.
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c. theartandscienceofmakingradiographsbythe exposureofanimage receptorto x-rays.
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d. aform of energycarried bywaves or a stream of particles.
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ANS: B t




An x-ray is a beam of energy that has the power to penetrate substances and record image shadows on
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a receptor. A radiograph is a picture on film produced bythe passage of x-rays throughanobjector
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body. Radiographyistheartandscienceofmakingdentalimagesbythe 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 OBJ: 1 t t t




TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
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MSC: NBDHE,2.0ObtainingandInterpretingRadiographs|NBDHE,2.1Principlesofradiophysics and
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radiobiology
t




3. Yourpatient asked you whydentalimages areimportant.Which ofthe followingisthe correct
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response?
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a. Anoralexaminationwithdentalimageslimitsthepractitionertowhatisseen
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clinically. t




b. Alldental diseases and conditionsproduceclinical signs and symptoms.
t t t t t t t t t

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c. Dentalimages arenot a necessarycomponent of comprehensive patient care. t t t t t t t t t t




d. Manydentaldiseases aretypicallydiscoveredonlythroughtheuseofdental t t t t t t t t t t t




images.
t




ANS: D t




An oral examination without dental images limits the practitioner to what is seen clinically. Many
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dentaldiseases andconditionsproduceno clinicalsignsandsymptoms. Dental images are a
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necessary component of comprehensive patient care. Many dental diseases are typically discovered
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only through the use of dental images.
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DIF: Application REF: Page 2 OBJ: 2 t t t t t




TOP: CDA,RHS, III.B.2.Describethecharacteristicsofx-radiation
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MSC: NBDHE,2.0ObtainingandInterpretingRadiographs|NBDHE,2.5General
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4. Thex-ray was discovered by
t t t t




a. HeinrichGeissler t




b. Wilhelm Roentgen t




c. Johann Hittorf t




d. WilliamCrookes t




ANS: B t




HeinrichGeissler built the first vacuum tubein 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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negativeelectrodeofavacuum tubetraveledinstraightlines,produced heat,and resulted in a
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greenish fluorescence. William Crookes discovered in the late 1870s that cathode rays were streams
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of charged particles.
t t t




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




TOP: CDA,RHS, III.B.2.Describethecharacteristicsofx-radiation
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MSC: NBDHE,2.0ObtainingandInterpretingRadiographs|NBDHE,2.5General
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5. Whoexposed the first dental radiograph in the United States usingalive person?
t t t t t t t t t t t t t




a. Otto Walkoff t




b. Wilhelm Roentgen t




c. Edmund Kells t




d. WestonPrice t




ANS: C t




OttoWalkoffwasaGermandentistwhomadethefirstdentalradiograph. WilhelmRoentgen was a
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Bavarian physicist who discovered the x-ray. Edmund Kells exposed the first dental radiograph in
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the United States using a live person. Price introduced the bisecting technique in 1904.
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DIF: Recall REF: Page 4 OBJ: 5 t t t t t




TOP: CDA,RHS, III.B.2.Describethecharacteristicsofx-radiation
t t t t t t t t




MSC: NBDHE,2.0ObtainingandInterpretingRadiographs|NBDHE,2.5 General
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6. Current fast radiographic film requires t t t t t %lessexposuretimethantheinitialexposure
t t t t t t t




times used in 1920.
t t t t




a. 33
b. 98
c. 73

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d. 2
ANS: D t




Currentfastradiographic filmrequires98%lessexposuretimethantheinitialexposuretimes used in
t t t t t t t t t t t t t t t




1920.
t




DIF: Comprehension REF: Page 5 OBJ: 6 t t t




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




MSC: NBDHE,2.0ObtainingandInterpretingRadiographs|NBDHE,2.5 General
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7. Who modified the parallelingtechnique with the introduction ofthe long-cone technique?
t t t t t t t t t t t




a. C. Edmund Kells t t




b. Franklin W. McCormack t t




c. F. Gordon Fitzgerald
t t




d. HowardRileyRaper t t




ANS: C t




C. Edmund Kells introduced the paralleling technique in 1896. Franklin W. McCormack
t t t t t t t t t t t




reintroducedtheparallelingtechniquein1920.F. GordonFitzgeraldmodifiedtheparalleling
t t t t t t t t t t t t




technique with the introduction of the long-cone technique. This is the technique currently used.
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Howard Riley Raper modified the bisecting technique and introduced the bite-wing technique in
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1925.
t




DIF: Recall REF: Page 4 OBJ: 7 t t t t t




TOP: CDA,RHS, III.B.2.Describethecharacteristicsofx-radiation
t t t t t t t t




MSC: NBDHE,2.0ObtainingandInterpretingRadiographs|NBDHE,2.5General
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8. Whichofthe followingis an advantageof digital imaging?
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a. Increasedpatient radiation exposure t t t




b. Increasedpatient comfort t t




c. Increased speed forviewingimages t t t t




d. Increasedchemicalusage t t




ANS: C t




Patient exposure is reduced with digital imaging. Digital sensors are more sensitive to x-rays than
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film. Digital sensors are rigid and bulky, causing decreased patient comfort. The image from digital
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sensors is uploaded directly to the computer and monitor without the need for chemicalprocessing.
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Thisallowsforimmediateinterpretationand evaluation.Theimagefrom digital sensors is uploaded
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directlyto the computer and monitor without theneed for chemical processing.
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DIF: Comprehension REF: Page 6 OBJ: 7 t t t




TOP: CDA,RHS,I.B.2.Demonstratebasicknowledgeofdigitalradiography
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MSC: NBDHE,2.0ObtainingandInterpretingRadiographs|NBDHE,2.5General
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9. Which discoverywas the precursor to the discoveryof x-rays?
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a. Betaparticles t




b. Alphaparticles t




c. Cathoderays t




d. Radioactivematerials t




ANS: C t