Test Bank-Style Study Guide for Dental Radiography: Principles and Techniques (6th Edition, 2025/2026 Update) by Joen Iannucci & Laura Jansen Howerton – Chapters 1–35 MCQs & A+ Exam Prep

TEST BANK For Dental Radiography:
Principles and Techniques 6th Edition
by Joen Iannucci & Laura Jansen Howerton
Chapters 1 - 35 | Complete




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,ChapterC01:CRadiationCHistory
Iannucci:CDentalCRadiography,C6thCEdition


MULTIPLECCHOICE

1. RadiationCisCdefinedCas
a. aCformCofCenergyCcarriedCbyCwavesCorCstreamsCofCparticles.
b. aCbeamCofCenergyCthatChasCtheCpowerCtoCpenetrateCsubstancesCandCrecordCim
ageCshadowsConCaCreceptor.
c. aChigh-
energyCradiationCproducedCbyCtheCcollisionCofCaCbeamCofCelectronsCwithCaCmet
alCtargetCinCanCx-rayCtube.
d. aCbranchCofCmedicineCthatCdealsCwithCtheCuseCofCx-rays.




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ANSWER:C A
RadiationCisCaCformCofCenergyCcarriedCbyCwavesCorCstreamsCofCparticles.CAnCx-
rayCisCaCbeamCofCenergyCthatChasCtheCpowerCtoCpenetrateCsubstancesCandCrecordCimageCshad
owsConCaCreceptor.
X-radiationCisCaChigh-
energyCradiationCproducedCbyCtheCcollisionCofCaCbeamCofCelectronsCwithCaCmetalCtargetCinCanC
x-rayCtube.CRadiologyCisCaCbranchCofCmedicineCthatCdealsCwithCtheCuseCof
x-rays.

DIF: Recall REF:CCCPageC2 OBJ:C 1
TOP:C CDA,CRHS,CIII.B.2.CDescribeCtheCcharacteristicsCofCx-radiation
MSC:C NBDHE,C2.0CObtainingCandCInterpretingCRadiographsC|CNBDHE,C2.1CPrinciplesCofCradiophysic
sCandCradiobiology

2. ACradiographCisCdefinedCas
a. aCbeamCofCenergyCthatChasCtheCpowerCtoCpenetrateCsubstancesCandCrecordCim
ageCshadowsConCaCreceptor.
b. aCpictureConCfilmCproducedCbyCtheCpassageCofCx-raysCthroughCanCobjectCorCbody.
c. theCartCandCscienceCofCmakingCradiographsCbyCtheCexposureCofCanCimageCrecepto
rCtoCx-rays.
d. aCformCofCenergyCcarriedCbyCwavesCorCaCstreamCofCparticles.
ANSWER:C B
AnCx-
rayCisCaCbeamCofCenergyCthatChasCtheCpowerCtoCpenetrateCsubstancesCandCrecordCimageCshad
owsConCaCreceptor.C ACradiographCisCaCpictureConCfilmCproducedCbyCtheCpassageCofCx-
raysCthroughCanCobjectCorCbody.CRadiographyCisCtheCartCandCscienceCofCmakingCdentalCimag
esCbyCtheCexposureCofCaCreceptorCtoCx-
rays.C RadiationCisCaCformCofCenergyCcarriedCbyCwavesCorCstreamsCofCparticles.

DIF: Comprehension REF:CCCPageC2
OBJ:C1CTOP:C CDA,CRHS,CIII.B.2.CDescribeCtheCcharacteristicsCof
Cx-radiation

MSC:C NBDHE,C2.0CObtainingCandCInterpretingCRadiographsC|CNBDHE,C2.1CPrinciplesCofCradiophysic
sCandCradiobiology

3. YourCpatientCaskedCyouCwhyCdentalCimagesCareCimportant.CWhichCofCtheCfollowingCisC
theCcorrectCresponse?
a. AnCoralCexaminationCwithCdentalCimagesClimitsCtheCpractitionerCtoCwhatCisCse
enCclinically.
b. AllCdentalCdiseasesCandCconditionsCproduceCclinicalCsignsCandCsymptoms.

, c. DentalCimagesCareCnotCaCnecessaryCcomponentCofCcomprehensiveCpatientCcare.
d. ManyCdentalCdiseasesCareCtypicallyCdiscoveredConlyCthroughCtheCuseCofCden
talCimages.
ANSWER:C D
AnCoralCexaminationCwithoutCdentalCimagesClimitsCtheCpractitionerCtoCwhatCisCseenCclinically.C
ManyCdentalCdiseasesCandCconditionsCproduceCnoCclinicalCsignsCandCsymptoms.CDentalCimages
CareCaCnecessaryCcomponentCofCcomprehensiveCpatientCcare.CManyCdentalCdiseasesCareCtypicall

yCdiscoveredConlyCthroughCtheCuseCofCdentalCimages.

DIF: Application REF:CCCPageC2 OBJ:C 2
TOP:C CDA,CRHS,CIII.B.2.CDescribeCtheCcharacteristicsCofCx-radiation
MSC:C NBDHE,C2.0CObtainingCandCInterpretingCRadiographsC|CNBDHE,C2.5CGeneral

4. TheCx-rayCwasCdiscoveredCby
a. HeinrichCGeissler




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b. WilhelmCRoentgen
c. JohannCHittorf
d. WilliamCCrookes
ANSWER:C B
HeinrichCGeisslerCbuiltCtheCfirstCvacuumCtubeCinC1838.C WilhelmCRoentgenCdiscoveredCthe
x-
rayConCNovemberC8,C1895.CJohannCHittorfCobservedCinC1870CthatCdischargesCemittedCfromCt
heCnegativeCelectrodeCofCaCvacuumCtubeCtraveledCinCstraightClines,CproducedCheat,CandCresult
edCinCaCgreenishCfluorescence.CWilliamCCrookesCdiscoveredCinCtheClateC1870sCthatCcathodeCr
aysCwereCstreamsCofCchargedCparticles.

DIF: Recall REF:CCCPageC2 OBJ:C 4
TOP:C CDA,CRHS,CIII.B.2.CDescribeCtheCcharacteristicsCofCx-radiation
MSC:C NBDHE,C2.0CObtainingCandCInterpretingCRadiographsC|CNBDHE,C2.5CGeneral

5. WhoCexposedCtheCfirstCdentalCradiographCinCtheCUnitedCStatesCusingCaCliveCperson?
a. OttoCWalkoff
b. WilhelmCRoentgen
c. EdmundCKells
d. WestonCPrice
ANSWER:C C
OttoCWalkoffCwasCaCGermanCdentistCwhoCmadeCtheCfirstCdentalCradiograph.CWilhelmCRoentg
enCwasCaCBavarianCphysicistCwhoCdiscoveredCtheCx-
ray.C EdmundCKellsCexposedCtheCfirstCdentalCradiographCinCtheCUnitedCStatesCusingCaCliveCpers
on.CCCPriceCintroducedCtheCbisectingCtechniqueCinC1904.

DIF: Recall REF:CCCPageC4 OBJ:C 5
TOP:C CDA,CRHS,CIII.B.2.CDescribeCtheCcharacteristicsCofCx-radiation
MSC:C NBDHE,C2.0CObtainingCandCInterpretingCRadiographsC|CNBDHE,C2.5CGeneral

6. CurrentCfastCradiographicCfilmCrequires
%ClessCexposureCtimeCthanCtheCinitialCexposureCtimesCusedCinC1920.
a. 33
b. 98
c. 73

, d. 2
ANSWER:C D
CurrentCfastCradiographicCfilmCrequiresC98%ClessCexposureCtimeCthanCtheCinitialCexposureCti
mesCusedCinC1920.

DIF: Comprehension REF:CCCPageC5
OBJ:C6CTOP:C CDA,CRHS,CIII.B.2.CDescribeCtheCcharacteristicsCof
Cx-radiation

MSC:C NBDHE,C2.0CObtainingCandCInterpretingCRadiographsC|CNBDHE,C2.5CGeneral

7. WhoCmodifiedCtheCparallelingCtechniqueCwithCtheCintroductionCofCtheClong-coneCtechnique?
a. C.CEdmundCKells
b. FranklinCW.CMcCormack
c. F.CGordonCFitzgerald
d. HowardCRileyCRaper




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ANSWER:C C
C.CEdmundCKellsCintroducedCtheCparallelingCtechniqueCinC1896.CFranklinCW.CMcCormackCr
eintroducedCtheCparallelingCtechniqueCinC1920.CF.CGordonCFitzgeraldCmodifiedCtheCparallelin
gCtechniqueCwithCtheCintroductionCofCtheClong-
coneCtechnique.CThisCisCtheCtechniqueCcurrentlyCused.CHowardCRileyCRaperCmodifiedCtheCbi
sectingCtechniqueCandCintroducedCtheCbite-wingCtechniqueCinC1925.

DIF: Recall REF:CCCPageC4 OBJ:C 7
TOP:C CDA,CRHS,CIII.B.2.CDescribeCtheCcharacteristicsCofCx-radiation
MSC:C NBDHE,C2.0CObtainingCandCInterpretingCRadiographsC|CNBDHE,C2.5CGeneral

8. WhichCofCtheCfollowingCisCanCadvantageCofCdigitalCimaging?
a. IncreasedCpatientCradiationCexposure
b. IncreasedCpatientCcomfort
c. IncreasedCspeedCforCviewingCimages
d. IncreasedCchemicalCusage
ANSWER:C C
PatientCexposureCisCreducedCwithCdigitalCimaging.CDigitalCsensorsCareCmoreCsensitiveCtoCx-
raysCthanCfilm.CDigitalCsensorsCareCrigidCandCbulky,CcausingCdecreasedCpatientCcomfort.CTheCi
mageCfromCdigitalCsensorsCisCuploadedCdirectlyCtoCtheCcomputerCandCmonitorCwithoutCtheCnee
dCforCchemicalCprocessing.CThisCallowsCforCimmediateCinterpretationCandCevaluation.CTheCima
geCfromCdigitalCsensorsCisCuploadedCdirectlyCtoCtheCcomputerCandCmonitorCwithoutCtheCneedCf
orCchemicalCprocessing.

DIF: Comprehension REF:CCCPageC6
OBJ:C7CTOP:C CDA,CRHS,CI.B.2.CDemonstrateCbasicCknowledgeCofCdi
gitalCradiography
MSC:C NBDHE,C2.0CObtainingCandCInterpretingCRadiographsC|CNBDHE,C2.5CGeneral

9. WhichCdiscoveryCwasCtheCprecursorCtoCtheCdiscoveryCofCx-rays?
a. BetaCparticles
b. AlphaCparticles
c. CathodeCrays
d. RadioactiveCmaterials
ANSWER:C C