n n n n
HY AND TECHNIQUES 6th EDITION BY J
n n n n n n
OEN M IANNUCCI chapters 1-35
n n n n
,Chaptern01:nRadiationnHistory
Iannucci:nDentalnRadiography,n6thnEdition
MULTIPLEnCHOICE
1. n Radiationnisn definednas
a. anformnofnenergyncarriednbynwavesnornstrea
msnofnparticles.
b. anbeamnofnenergynthatnhasnthenpowerntonpen
etraten substancesn andn recordn image
shadowsnonn an receptor.
c. anhigh-
energynradiationnproducednbynthencollisionn
ofnanbeamnofnelectronsnwithnanmetalntargetni
nnannx-rayntube.
d. an branchnofnmedicinen thatndealsnwithnthe
usen ofnx-rays.
ANS:n A
Radiationnisnanformnofnenergyncarriednbynwavesnornstreamsnofnparticles.nAnnx-
raynisnanbeamnofnenergynthatnhasnthenpowerntonpenetratensubstancesnandnrecordnimagenshado
wsnonnanreceptor.nX-radiationnisnanhigh-
energynradiationnproducednbynthencollisionnofnanbeamnofnelectronsnwithnanmetaln targetn innann
x-rayntube.n Radiologynisnan branchn ofnmedicinenthatndealsnwithnthenusenofnx-rays.
DIF: Recall REF:n n Pagen2 OBJ:n 1
TOP:nCDA,nRHS,n III.B.2.nDescribenthencharacteristicsnofnx-radiation
MSC:nNBDHE,n2.0nObtainingnandnInterpretingnRadiographsn|nNBDHE,n2.1nPrinciplesnofnradiophysi
csnandnradiobiology
2. Anradiographn isndefinedn as
a. anbeamnofnenergynthatnhasnthenpowernton
penetratensubstancesnandnrecordnimagen
shadowsnonnanreceptor.
b. anpicturenonnfilmnproducednbynthenpassageno
fnx-raysnthroughnannobjectnornbody.
c. thenartnandnsciencenofnmakingnradiographsn
bynthenexposurenofnannimagenreceptorntonx-
nrays.
d. anformnofnenergyncarriednbynwavesnornanstre
amnofnparticles.
ANS:n B
Annx-
raynisnanbeamnofnenergynthatnhasnthenpowerntonpenetratensubstancesnandnrecordnimagenshado
wsnonnanreceptor.nAnradiographnisnanpicturenonnfilmnproducednbynthenpassagenofnx-
nraysnthroughnannobjectnornbody.nRadiographynisnthenartnandnsciencenofnmakingndentalnimage
snbynthenexposurenofnanreceptorntonx-
rays.nRadiationnisnanformnofnenergyncarriednbynwavesnornstreamsnofnparticles.
, DIF: Comprehension REF:n Pagen2
OBJ:n1nTOP:nCDA,nRHS,nIII.B.2.nDescribenthencharacteristicsnofnx-
radiation
MSC:nNBDHE,n2.0nObtainingnandnInterpretingnRadiographsn|nNBDHE,n2.1nPrinciplesnofnradiophysi
csnandnradiobiology
3. Yournpatientnaskednyounwhyndentalnimagesnarenimportant.nWhichnofnthenf
ollowingnisnthencorrectnresponse?
a. Annoralnexaminationnwithndentalnimagesnli
mitsnthenpractitionerntonwhatnisnseennclinical
ly.
b. Allndentalndiseasesnandnconditionsnproducen
clinicalnsignsnandnsymptoms.
c. Dentalnimagesnarennotnannecessaryncompon
entnofncomprehensivenpatientncare.
d. Manyndentalndiseasesnarentypicallyndiscove
rednonlynthroughnthenusenofndentalnimages.
ANS:n D
Annoralnexaminationnwithoutndentalnimagesnlimitsnthenpractitionerntonwhatnisnseennclinically.
nManyndentalndiseasesnandnconditionsnproducennonclinicalnsignsnandnsymptoms.nDentalnimag
esnarenannecessaryncomponentnofncomprehensivenpatientncare.nManyndentalndiseasesnarentypi
callyndiscoverednonlynthroughnthenusenofndentalnimages.
DIF: Application REF:n n Pagen2 OBJ:n 2
TOP:nCDA,nRHS,n III.B.2.nDescribenthencharacteristicsnofnx-radiation
MSC:nNBDHE,n2.0nObtainingn andn InterpretingnRadiographsn|nNBDHE,n 2.5nGeneral
4. Then x-raynwasndiscoverednby
a. HeinrichnGeissler
b. WilhelmnRoentgen
c. JohannnHittorf
d. WilliamnCrookes
ANS:n B
HeinrichnGeisslernbuiltnthenfirstnvacuumntubeninn1838.nWilhelmnRoentgenndiscoverednthen
x-
raynonnNovembern8,n1895.nJohannnHittorfnobservedninn1870nthatndischargesnemittednfromn
thennegativenelectrodenofnanvacuumntubentraveledninnstraightnlines,nproducednheat,
andnresultedninnangreenishnfluorescence.nWilliamnCrookesndiscoveredninnthenlaten1870snthatn
cathodenraysnwerenstreamsnofnchargednparticles.
DIF: Recall REF:n n Pagen2 OBJ:n 4
TOP:nCDA,nRHS,nIII.B.2.nDescribenthencharacteristicsnofnx-radiation
MSC:nNBDHE,n2.0nObtainingn andn Interpretingn Radiographsn|nNBDHE,n2.5nGeneral