,Chapter f01: fRadiation fHistory
Iannucci: fDental fRadiography, f6th fEdition
MULTIPLE fCHOICE
1. Radiation fis fdefined fas
a. a fform fof fenergy fcarried fby fwaves for fstreams fof fparticles.
b. a fbeam fof fenergy fthat fhas fthe fpower fto fpenetrate fsubstances fand frecord
image fshadows fon fa freceptor.
f
c. a fhigh-energy fradiation fproduced fby fthe fcollision fof fa fbeam fof felectrons fwith
a fmetal ftarget fin fan fx-ray ftube.
f
d. a fbranch fof fmedicine fthat fdeals fwith fthe fuse fof fx-rays.
ANS: f A
Radiation fis fa fform fof fenergy fcarried fby fwaves for fstreams fof fparticles. fAn fx-ray fis fa fbeam fof
fenergy fthat fhas fthe fpower fto fpenetrate fsubstances fand frecord fimage fshadows fon fa freceptor.
X-radiation fis fa fhigh-energy fradiation fproduced fby fthe fcollision fof fa fbeam fof felectrons fwith fa
fmetal ftarget fin fan fx-ray ftube. fRadiology fis fa fbranch fof fmedicine fthat fdeals fwith fthe fuse fof
x-rays.
DIF: Recall REF: f f Page f2 OBJ: f f 1
TOP: f CDA, fRHS, fIII.B.2. fDescribe fthe fcharacteristics fof fx-radiation
MSC: f NBDHE, f2.0 fObtaining fand fInterpreting fRadiographs f| fNBDHE, f2.1 fPrinciples fof fradiophysics
fand fradiobiology
2. A fradiograph fis fdefined fas
a. a fbeam fof fenergy fthat fhas fthe fpower fto fpenetrate fsubstances fand frecord
image fshadows fon fa freceptor.
f
b. a fpicture fon ffilm fproduced fby fthe fpassage fof fx-rays fthrough fan fobject for fbody.
c. the fart fand fscience fof fmaking fradiographs fby fthe fexposure fof fan fimage freceptor
to fx-rays.
f
d. a fform fof fenergy fcarried fby fwaves for fa fstream fof fparticles.
ANS: f B
An fx-ray fis fa fbeam fof fenergy fthat fhas fthe fpower fto fpenetrate fsubstances fand frecord fimage
fshadows fon fa freceptor. f A fradiograph fis fa fpicture fon ffilm fproduced fby fthe fpassage fof fx-
rays fthrough fan fobject for fbody. fRadiography fis fthe fart fand fscience fof fmaking fdental fimages
fby fthe fexposure fof fa freceptor fto fx-rays. f Radiation fis fa fform fof fenergy fcarried fby fwaves
for fstreams fof fparticles.
DIF: Comprehension REF: f Page f2 OBJ:
f 1 fTOP: f CDA, fRHS, fIII.B.2. fDescribe fthe fcharacteristics fof fx-radiation
MSC: f NBDHE, f2.0 fObtaining fand fInterpreting fRadiographs f| fNBDHE, f2.1 fPrinciples fof fradiophysics
fand fradiobiology
3. Your fpatient fasked fyou fwhy fdental fimages fare fimportant. fWhich fof fthe ffollowing fis
the fcorrect fresponse?
f
a. An foral fexamination fwith fdental fimages flimits fthe fpractitioner fto fwhat fis
seen fclinically.
f
b. All fdental fdiseases fand fconditions fproduce fclinical fsigns fand fsymptoms.
, c. Dental fimages fare fnot fa fnecessary fcomponent fof fcomprehensive fpatient fcare.
d. Many fdental fdiseases fare ftypically fdiscovered fonly fthrough fthe fuse fof
dental fimages.
f
ANS: f D
An foral fexamination fwithout fdental fimages flimits fthe fpractitioner fto fwhat fis fseen fclinically.
fMany fdental fdiseases fand fconditions fproduce fno fclinical fsigns fand fsymptoms. f Dental
fimages fare fa fnecessary fcomponent fof fcomprehensive fpatient fcare. fMany fdental fdiseases fare
ftypically fdiscovered fonly fthrough fthe fuse fof fdental fimages.
DIF: Application REF: f f Page f2 OBJ: f f 2
TOP: f CDA, fRHS, fIII.B.2. fDescribe fthe fcharacteristics fof fx-radiation
MSC: f NBDHE, f2.0 fObtaining fand fInterpreting fRadiographs f| fNBDHE, f2.5 fGeneral
4. The fx-ray fwas fdiscovered fby
a. Heinrich fGeissler
b. Wilhelm fRoentgen
c. Johann fHittorf
d. William fCrookes
ANS: f B
Heinrich fGeissler fbuilt fthe ffirst fvacuum ftube fin f1838. f f Wilhelm fRoentgen fdiscovered fthe
x-ray fon fNovember f8, f1895. f Johann fHittorf fobserved fin f1870 fthat fdischarges femitted
ffrom fthe fnegative felectrode fof fa fvacuum ftube ftraveled fin fstraight flines, fproduced fheat, fand
fresulted fin fa fgreenish ffluorescence. fWilliam fCrookes fdiscovered fin fthe flate f1870s fthat
fcathode frays fwere fstreams fof fcharged fparticles.
DIF: Recall REF: f f Page f2 OBJ: f f 4
TOP: f CDA, fRHS, fIII.B.2. fDescribe fthe fcharacteristics fof fx-radiation
MSC: f NBDHE, f2.0 fObtaining fand fInterpreting fRadiographs f| fNBDHE, f2.5 fGeneral
5. Who fexposed fthe ffirst fdental fradiograph fin fthe fUnited fStates fusing fa flive fperson?
a. Otto fWalkoff
b. Wilhelm fRoentgen
c. Edmund fKells
d. Weston fPrice
ANS: f C
Otto fWalkoff fwas fa fGerman fdentist fwho fmade fthe ffirst fdental fradiograph. f Wilhelm
fRoentgen fwas fa fBavarian fphysicist fwho fdiscovered fthe fx-ray. f Edmund fKells fexposed fthe
ffirst fdental fradiograph fin fthe fUnited fStates fusing fa flive fperson. f Price fintroduced fthe
fbisecting ftechnique fin f1904.
DIF: Recall REF: f f Page f4 OBJ: f f 5
TOP: f CDA, fRHS, fIII.B.2. fDescribe fthe fcharacteristics fof fx-radiation
MSC: f NBDHE, f2.0 fObtaining fand fInterpreting fRadiographs f| fNBDHE, f2.5 fGeneral
6. Current ffast fradiographic ffilm frequires f % fless fexposure ftime fthan fthe finitial fexposure
times fused fin f1920.
f
a. 33
b. 98
c. 73
, d. 2
ANS: f D
Current ffast fradiographic ffilm frequires f98% fless fexposure ftime fthan fthe finitial fexposure ftimes
fused fin f1920.
DIF: Comprehension REF: f Page f5 OBJ:
f 6 fTOP: f CDA, fRHS, fIII.B.2. fDescribe fthe fcharacteristics fof fx-radiation
MSC: f NBDHE, f2.0 fObtaining fand fInterpreting fRadiographs f| fNBDHE, f2.5 fGeneral
7. Who fmodified fthe fparalleling ftechnique fwith fthe fintroduction fof fthe flong-cone ftechnique?
a. C. fEdmund fKells
b. Franklin fW. fMcCormack
c. F. fGordon fFitzgerald
d. Howard fRiley fRaper
ANS: f C
C. fEdmund fKells fintroduced fthe fparalleling ftechnique fin f1896. fFranklin fW. fMcCormack
freintroduced fthe fparalleling ftechnique fin f1920. fF. fGordon fFitzgerald fmodified fthe
fparalleling ftechnique fwith fthe fintroduction fof fthe flong-cone ftechnique. fThis fis fthe
ftechnique fcurrently fused. fHoward fRiley fRaper fmodified fthe fbisecting ftechnique fand
fintroduced fthe fbite-wing ftechnique fin f1925.
DIF: Recall REF: f f Page f4 OBJ: f f 7
TOP: f CDA, fRHS, fIII.B.2. fDescribe fthe fcharacteristics fof fx-radiation
MSC: f NBDHE, f2.0 fObtaining fand fInterpreting fRadiographs f| fNBDHE, f2.5 fGeneral
8. Which fof fthe ffollowing fis fan fadvantage fof fdigital fimaging?
a. Increased fpatient fradiation fexposure
b. Increased fpatient fcomfort
c. Increased fspeed ffor fviewing fimages
d. Increased fchemical fusage
ANS: f C
Patient fexposure fis freduced fwith fdigital fimaging. fDigital fsensors fare fmore fsensitive fto fx-rays
fthan ffilm. fDigital fsensors fare frigid fand fbulky, fcausing fdecreased fpatient fcomfort. fThe fimage
ffrom fdigital fsensors fis fuploaded fdirectly fto fthe fcomputer fand fmonitor fwithout fthe fneed ffor
fchemical fprocessing. fThis fallows ffor fimmediate finterpretation fand fevaluation. fThe fimage ffrom
fdigital fsensors fis fuploaded fdirectly fto fthe fcomputer fand fmonitor fwithout fthe fneed ffor
fchemical fprocessing.
DIF: Comprehension REF: f Page f6 OBJ: f 7
fTOP: f CDA, fRHS, fI.B.2. fDemonstrate fbasic fknowledge fof fdigital
fradiography
MSC: f NBDHE, f2.0 fObtaining fand fInterpreting fRadiographs f| fNBDHE, f2.5 fGeneral
9. Which fdiscovery fwas fthe fprecursor fto fthe fdiscovery fof fx-rays?
a. Beta fparticles
b. Alpha fparticles
c. Cathode frays
d. Radioactive fmaterials
ANS: f C
