Principles and Techniques 6th Edition
by Joen Iannucci & Laura Jansen Howerton
Chapters 1 - 35 | Complete
,Chapterl201:l2Radiationl2History
Iannucci:l2Dentall2Radiography,l26thl2Edition
MULTIPLEl2CHOICE
1. Radiationl2isl2definedl2as
a. al2forml2ofl2energyl2carriedl2byl2wavesl2orl2streamsl2ofl2particles.
b. al2beaml2ofl2energyl2thatl2hasl2thel2powerl2tol2penetratel2substancesl2andl2recor
dl2image2lshadowsl2onl2al2receptor.
c. al2high-
energyl2radiationl2producedl2byl2thel2collisionl2ofl2al2beaml2ofl2electronsl2withl2
a2lmetall2targetl2inl2anl2x-rayl2tube.
d. al2branchl2ofl2medicinel2thatl2dealsl2withl2thel2usel2ofl2x-rays.
ANSWER:l 2 A
Radiationl2isl2al2forml2ofl2energyl2carriedl2byl2wavesl2orl2streamsl2ofl2particles.l2Anl2x-
rayl2isl2al2beaml2of2lenergyl2thatl2hasl2thel2powerl2tol2penetratel2substancesl2andl2recordl2image
l2shadowsl2onl2al2receptor.
X-radiationl2isl2al2high-
energyl2radiationl2producedl2byl2thel2collisionl2ofl2al2beaml2ofl2electronsl2withl2a2lmetall2targetl
2inl2anl2x-rayl2tube.l2Radiologyl2isl2al2branchl2ofl2medicinel2thatl2dealsl2withl2thel2usel2of
x-rays.
DIF: Recall REF:l2l2l2Pagel22 OBJ:l 2 1
TOP:l 2 CDA,l2RHS,l2III.B.2.l2Describel2thel2characteristicsl2ofl2x-radiation
MSC:l 2 NBDHE,l22.0l2Obtainingl2andl2Interpretingl2Radiographsl2|l2NBDHE,l22.1l2Principlesl2ofl2radio
physics2landl2radiobiology
2. Al2radiographl2isl2definedl2as
a. al2beaml2ofl2energyl2thatl2hasl2thel2powerl2tol2penetratel2substancesl2andl2recor
dl2image2lshadowsl2onl2al2receptor.
b. al2picturel2onl2filml2producedl2byl2thel2passagel2ofl2x-raysl2throughl2anl2objectl2orl2body.
c. thel2artl2andl2sciencel2ofl2makingl2radiographsl2byl2thel2exposurel2ofl2anl2imagel2re
ceptorl2to2lx-rays.
d. al2forml2ofl2energyl2carriedl2byl2wavesl2orl2al2streaml2ofl2particles.
ANSWER:l 2 B
Anl2x-
rayl2isl2al2beaml2ofl2energyl2thatl2hasl2thel2powerl2tol2penetratel2substancesl2andl2recordl2imag
el2shadowsl2onl2al2receptor.l2 Al2radiographl2isl2al2picturel2onl2filml2producedl2byl2thel2passage
l2ofl2x-
raysl2throughl2anl2objectl2orl2body.l2Radiographyl2isl2thel2artl2andl2sciencel2ofl2makingl2dentall
2imagesl2byl2the2lexposurel2ofl2al2receptorl2tol2x-
rays.l 2 Radiationl2isl2al2forml2ofl2energyl2carriedl2byl2wavesl2orl2streamsl2ofl2particles.
DIF: Comprehension REF:l2l2l2Pagel22
OBJ:l212lTOP:l 2 CDA,l2RHS,l2III.B.2.l2Describel2thel2characteristic
sl2ofl2x-radiation
MSC:l 2 NBDHE,l22.0l2Obtainingl2andl2Interpretingl2Radiographsl2|l2NBDHE,l22.1l2Principlesl2ofl2radio
physics2landl2radiobiology
3. Yourl2patientl2askedl2youl2whyl2dentall2imagesl2arel2important.l2Whichl2ofl2thel2followi
ngl2isl2the2lcorrectl2response?
a. Anl2orall2examinationl2withl2dentall2imagesl2limitsl2thel2practitionerl2tol2whatl
, 2isl2seen2lclinically.
b. Alll2dentall2diseasesl2andl2conditionsl2producel2clinicall2signsl2andl2symptoms.
, c. Dentall2imagesl2arel2notl2al2necessaryl2componentl2ofl2comprehensivel2patientl2care.
d. Manyl2dentall2diseasesl2arel2typicallyl2discoveredl2onlyl2throughl2thel2usel2of
l2dental2limages.
ANSWER:l 2 D
Anl2orall2examinationl2withoutl2dentall2imagesl2limitsl2thel2practitionerl2tol2whatl2isl2seenl2clini
cally.l2Manyl2dentall2diseasesl2andl2conditionsl2producel2nol2clinicall2signsl2andl2symptoms.l2D
entall2images2larel2al2necessaryl2componentl2ofl2comprehensivel2patientl2care.l2Manyl2dentall2dis
easesl2arel2typicallyl2discoveredl2onlyl2throughl2thel2usel2ofl2dentall2images.
DIF: Application REF:l2l2l2Pagel22 OBJ:l 2 2
TOP:l 2 CDA,l2RHS,l2III.B.2.l2Describel2thel2characteristicsl2ofl2x-radiation
MSC:l 2 NBDHE,l22.0l2Obtainingl2andl2Interpretingl2Radiographsl2|l2NBDHE,l22.5l2General
4. Thel2x-rayl2wasl2discoveredl2by
a. Heinrichl2Geissler
b. Wilhelml2Roentgen
c. Johannl2Hittorf
d. Williaml2Crookes
ANSWER:l 2 B
Heinrichl2Geisslerl2builtl2thel2firstl2vacuuml2tubel2inl21838.l 2 Wilhelml2Roentgenl2discoveredl2t
he
x-
rayl2onl2Novemberl28,l21895.l2Johannl2Hittorfl2observedl2inl21870l2thatl2dischargesl2emittedl2f
roml2thel2negativel2electrodel2ofl2al2vacuuml2tubel2traveledl2inl2straightl2lines,l2producedl2heat
,l2andl2resulted2linl2al2greenishl2fluorescence.l2Williaml2Crookesl2discoveredl2inl2thel2latel2187
0sl2thatl2cathodel2raysl2werel2streamsl2ofl2chargedl2particles.
DIF: Recall REF:l2l2l2Pagel22 OBJ:l 2 4
TOP:l 2 CDA,l2RHS,l2III.B.2.l2Describel2thel2characteristicsl2ofl2x-radiation
MSC:l 2 NBDHE,l22.0l2Obtainingl2andl2Interpretingl2Radiographsl2|l2NBDHE,l22.5l2General
5. Whol2exposedl2thel2firstl2dentall2radiographl2inl2thel2Unitedl2Statesl2usingl2al2livel2person?
a. Ottol2Walkoff
b. Wilhelml2Roentgen
c. Edmundl2Kells
d. Westonl2Price
ANSWER:l 2 C
Ottol2Walkoffl2wasl2al2Germanl2dentistl2whol2madel2thel2firstl2dentall2radiograph.l2Wilhelml2R
oentgen2lwasl2al2Bavarianl2physicistl2whol2discoveredl2thel2x-
ray.l2 Edmundl2Kellsl2exposedl2thel2firstl2dentall2radiographl2inl2thel2Unitedl2Statesl2usingl2al2li
vel2person.l2l2l2Pricel2introducedl2thel2bisectingl2techniquel2inl21904.
DIF: Recall REF:l2l2l2Pagel24 OBJ:l 2 5
TOP:l 2 CDA,l2RHS,l2III.B.2.l2Describel2thel2characteristicsl2ofl2x-radiation
MSC:l 2 NBDHE,l22.0l2Obtainingl2andl2Interpretingl2Radiographsl2|l2NBDHE,l22.5l2General
6. Currentl2fastl2radiographicl2filml2requires
%l2lessl2exposurel2timel2thanl2thel2initiall2exposure2ltimesl2usedl2inl21920.
a. 33
b. 98
c. 73