TEST BANK For Dental Radiography:
Principles and Techniques 6th Edition
by Joen Iannucci & Laura Jansen Howerton
Chapters 1 - 35 | Complete
,Chapter 01: Radiation History
Iannucci: Dental Radiography, 6th 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.
ANSWER: 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
2. A radiograph is defined as
a. a beam of energy that has the power to penetrate substances and record image
shadows on a receptor.
b. a picture on film produced by the passage of x-rays through an object or body.
c. the art and science of making radiographs by the exposure of an image receptor to
x-rays.
d. a form of energy carried by waves or a stream of particles.
ANSWER: B
An x-ray is a beam of energy that has the power to penetrate substances and record image
shadows on a receptor. A radiograph is a picture on film produced by the passage of x-rays
through an object or body. Radiography is the art and science of making dental images by the
exposure of a receptor to x-rays. Radiation is a form of energy carried by waves or streams
of particles.
DIF: Comprehension 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
3. Your patient asked you why dental images are important. Which of the following is the
correct response?
a. An oral examination with dental images limits the practitioner to what is seen
clinically.
b. All dental diseases and conditions produce clinical signs and symptoms.
c. Dental images are not a necessary component of comprehensive patient care.
d. Many dental diseases are typically discovered only through the use of dental
, images.
ANSWER: D
An oral examination without dental images limits the practitioner to what is seen clinically.
Many dental diseases and conditions produce no clinical signs and symptoms. Dental images
are a necessary component of comprehensive patient care. Many dental diseases are typically
discovered only through the use of dental images.
DIF: Application REF: Page 2 OBJ: 2
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
4. The x-ray was discovered by
a. Heinrich Geissler
b. Wilhelm Roentgen
c. Johann Hittorf
d. William Crookes
ANSWER: B
Heinrich Geissler built the first vacuum tube in 1838. Wilhelm Roentgen discovered the
x-ray on November 8, 1895. Johann Hittorf observed in 1870 that discharges emitted from
the negative electrode of a vacuum tube traveled in straight lines, produced heat, and resulted
in a greenish fluorescence. William Crookes discovered in the late 1870s that cathode rays
were streams of charged particles.
DIF: Recall REF: Page 2 OBJ: 4
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
5. Who exposed the first dental radiograph in the United States using a live person?
a. Otto Walkoff
b. Wilhelm Roentgen
c. Edmund Kells
d. Weston Price
ANSWER: C
Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm Roentgen
was a Bavarian physicist who discovered the x-ray. Edmund Kells exposed the first dental
radiograph in the United States using a live person. Price introduced the bisecting technique
in 1904.
DIF: Recall REF: Page 4 OBJ: 5
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
6. Current fast radiographic film requires % less exposure time than the initial exposure
times used in 1920.
a. 33
b. 98
c. 73
d. 2
ANSWER: D
Current fast radiographic film requires 98% less exposure time than the initial exposure times
used in 1920.
, DIF: Comprehension REF: Page 5 OBJ: 6
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
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
ANSWER: 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
fparallelingftechnique 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 fPage f4 OBJ: 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
ANSWER: 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 ffromfdigital fsensors fis fuploaded fdirectly fto fthe fcomputer fand fmonitor fwithout
fthe fneed ffor fchemicalfprocessing.
DIF: Comprehension REF: f f fPage f6 OBJ: f7
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
ANSWER: f C
Beta fparticles fare ffast fmoving felectrons femitted ffrom fthe fnucleus fof fradioactive fatoms
fand farefnot fassociated fwith fx-rays. fAlpha fparticles fare femitted ffrom fthe fnuclei fof fheavy
fmetals fand farefnot fassociated fwith fx-rays. fWilhelm fRoentgen fwas fexperimenting fwith
fcathode frays fwhen fhe fdiscovered fx-rays. fRadioactive fmaterials fare fcertain funstable fatoms
for felements fthat fare fin fthe fprocess fof fspontaneous fdisintegration for fdecay.
DIF: Comprehension REF: f f fPage f3 OBJ: f4
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
Principles and Techniques 6th Edition
by Joen Iannucci & Laura Jansen Howerton
Chapters 1 - 35 | Complete
,Chapter 01: Radiation History
Iannucci: Dental Radiography, 6th 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.
ANSWER: 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
2. A radiograph is defined as
a. a beam of energy that has the power to penetrate substances and record image
shadows on a receptor.
b. a picture on film produced by the passage of x-rays through an object or body.
c. the art and science of making radiographs by the exposure of an image receptor to
x-rays.
d. a form of energy carried by waves or a stream of particles.
ANSWER: B
An x-ray is a beam of energy that has the power to penetrate substances and record image
shadows on a receptor. A radiograph is a picture on film produced by the passage of x-rays
through an object or body. Radiography is the art and science of making dental images by the
exposure of a receptor to x-rays. Radiation is a form of energy carried by waves or streams
of particles.
DIF: Comprehension 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
3. Your patient asked you why dental images are important. Which of the following is the
correct response?
a. An oral examination with dental images limits the practitioner to what is seen
clinically.
b. All dental diseases and conditions produce clinical signs and symptoms.
c. Dental images are not a necessary component of comprehensive patient care.
d. Many dental diseases are typically discovered only through the use of dental
, images.
ANSWER: D
An oral examination without dental images limits the practitioner to what is seen clinically.
Many dental diseases and conditions produce no clinical signs and symptoms. Dental images
are a necessary component of comprehensive patient care. Many dental diseases are typically
discovered only through the use of dental images.
DIF: Application REF: Page 2 OBJ: 2
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
4. The x-ray was discovered by
a. Heinrich Geissler
b. Wilhelm Roentgen
c. Johann Hittorf
d. William Crookes
ANSWER: B
Heinrich Geissler built the first vacuum tube in 1838. Wilhelm Roentgen discovered the
x-ray on November 8, 1895. Johann Hittorf observed in 1870 that discharges emitted from
the negative electrode of a vacuum tube traveled in straight lines, produced heat, and resulted
in a greenish fluorescence. William Crookes discovered in the late 1870s that cathode rays
were streams of charged particles.
DIF: Recall REF: Page 2 OBJ: 4
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
5. Who exposed the first dental radiograph in the United States using a live person?
a. Otto Walkoff
b. Wilhelm Roentgen
c. Edmund Kells
d. Weston Price
ANSWER: C
Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm Roentgen
was a Bavarian physicist who discovered the x-ray. Edmund Kells exposed the first dental
radiograph in the United States using a live person. Price introduced the bisecting technique
in 1904.
DIF: Recall REF: Page 4 OBJ: 5
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
6. Current fast radiographic film requires % less exposure time than the initial exposure
times used in 1920.
a. 33
b. 98
c. 73
d. 2
ANSWER: D
Current fast radiographic film requires 98% less exposure time than the initial exposure times
used in 1920.
, DIF: Comprehension REF: Page 5 OBJ: 6
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
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
ANSWER: 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
fparallelingftechnique 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 fPage f4 OBJ: 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
ANSWER: 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 ffromfdigital fsensors fis fuploaded fdirectly fto fthe fcomputer fand fmonitor fwithout
fthe fneed ffor fchemicalfprocessing.
DIF: Comprehension REF: f f fPage f6 OBJ: f7
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
ANSWER: f C
Beta fparticles fare ffast fmoving felectrons femitted ffrom fthe fnucleus fof fradioactive fatoms
fand farefnot fassociated fwith fx-rays. fAlpha fparticles fare femitted ffrom fthe fnuclei fof fheavy
fmetals fand farefnot fassociated fwith fx-rays. fWilhelm fRoentgen fwas fexperimenting fwith
fcathode frays fwhen fhe fdiscovered fx-rays. fRadioactive fmaterials fare fcertain funstable fatoms
for felements fthat fare fin fthe fprocess fof fspontaneous fdisintegration for fdecay.
DIF: Comprehension REF: f f fPage f3 OBJ: f4
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
