Test Bank for Dental Radiography Principles and Techniques, 5th Edition, Joen Iannucci, Laura Howerton

TEST BANK For Dental Radiography:
x x x x x




Principles and Techniques 6th Edition
x x x x x




by Joen Iannucci & Laura Jansen Howerton
x x x x x x x




Chapters 1 - 35 | Complete
x x x x x x

,Chapter 01: Radiation History
x x x


Iannucci: Dental Radiography, 6th Edition
x x x x




MULTIPLE CHOICE x




1. Radiation is defined as x x x


a. a form of energy carried by waves or streams of particles.
x x x x x x x x x x


b. a beam of energy that has the power to penetrate substances and record image
x x x x x x x x x x x x x


shadows on a receptor.
x x x x


c. a high-energy radiation produced by the collision of a beam of electrons with a
x x x x x x x x x x x x x


metal target in an x-ray tube.
x x x x x x


d. a branch of medicine that deals with the use of x-rays.
x x x x x x x x x x




ANSWER: A x


Radiation is a form of energy carried by waves or streams of particles. An x-ray is a beam of
x x x x x x x x x x x x x x x x x x


energy that has the power to penetrate substances and record image shadows on a receptor.
x x x x x x x x x x x x x x x


X-radiation is a high-energy radiation produced by the collision of a beam of electrons with a
x x x x x x x x x x x x x x x


metal target in an x-ray tube. Radiology is a branch of medicine that deals with the use of
x x x x x x x x x x x x x x x x x x


x-rays.

DIF: Recall REF: Page 2 OBJ: 1 xxx x x


TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
x x x x x x x x


MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics
x x x x x x x x x x x x


and radiobiology
x x




2. A radiograph is defined as
x x x x


a. a beam of energy that has the power to penetrate substances and record image
x x x x x x x x x x x x x


shadows on a receptor.
x x x x


b. a picture on film produced by the passage of x-rays through an object or body.
x x x x x x x x x x x x x x


c. the art and science of making radiographs by the exposure of an image receptor to
x x x x x x x x x x x x x x


x-rays. x


d. a form of energy carried by waves or a stream of particles.
x x x x x x x x x x x




ANSWER: B x


An x-ray is a beam of energy that has the power to penetrate substances and record image
x x x x x x x x x x x x x x x x


shadows on a receptor. A radiograph is a picture on film produced by the passage of x-rays
x x x x x x x x x x x x x x x x x


through an object or body. Radiography is the art and science of making dental images by the
x x x x x x x x x x x x x x x x x


exposure of a receptor to x-rays. Radiation is a form of energy carried by waves or streams
x x x x x x x x x x x x x x x x x


of particles.
x x




DIF: Comprehension REF: Page 2 OBJ: 1 xxx x x


TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
x x x x x x x x x


MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics
x x x x x x x x x x x x


and radiobiology
x x




3. Your patient asked you why dental images are important. Which of the following is the
x x x x x x x x x x x x x x


correct response?
x x


a. An oral examination with dental images limits the practitioner to what is seen
x x x x x x x x x x x x


clinically. x


b. All dental diseases and conditions produce clinical signs and symptoms.
x x x x x x x x x

, c. Dental images are not a necessary component of comprehensive patient care.
x x x x x x x x x x


d. Many dental diseases are typically discovered only through the use of dental
x x x x x x x x x x x


images.
x




ANSWER: D x


An oral examination without dental images limits the practitioner to what is seen clinically.
x x x x x x x x x x x x x


Many dental diseases and conditions produce no clinical signs and symptoms. Dental images
x x x x x x x x x x x x x


are a necessary component of comprehensive patient care. Many dental diseases are typically
x x x x x x x x x x x x x


discovered only through the use of dental images.
x x x x x x x x




DIF: Application REF: Page 2 OBJ: 2 xxx x x


TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
x x x x x x x x


MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
x x x x x x x x x x




4. The x-ray was discovered by
x x x x


a. Heinrich Geissler x


b. Wilhelm Roentgen x


c. Johann Hittorf x


d. William Crookes x




ANSWER: B x


Heinrich Geissler built the first vacuum tube in 1838. Wilhelm Roentgen discovered the
x x x x x x x x x x x x


x-ray on November 8, 1895. Johann Hittorf observed in 1870 that discharges emitted from
x x x x x x x x x x x x x


the negative electrode of a vacuum tube traveled in straight lines, produced heat, and
x x x x x x x x x x x x x x


resultedin a greenish fluorescence. William Crookes discovered in the late 1870s that
x x x x x x x x x x x x x


cathode rays were streams of charged particles.
x x x x x x x




DIF: Recall REF: Page 2 OBJ: 4 xxx x x


TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
x x x x x x x x


MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
x x x x x x x x x x




5. Who exposed the first dental radiograph in the United States using a live person?
x x x x x x x x x x x x x


a. Otto Walkoff x


b. Wilhelm Roentgen x


c. Edmund Kells x


d. Weston Price x




ANSWER: C x


Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm Roentgen
x x x x x x x x x x x x x


was a Bavarian physicist who discovered the x-ray. Edmund Kells exposed the first dental
x x x x x x x x x x x x x x


radiograph in the United States using a live person. Price introduced the bisecting technique
x x x x x x x x x xxx x x x x


in 1904.
x x




DIF: Recall REF: Page 4 OBJ: 5 xxx x x


TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
x x x x x x x x


MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
x x x x x x x x x x




6. Current fast radiographic film requires
x x x x % less exposure time than the initial exposure
x x x x x x x


times used in 1920.
x x x x


a. 33
b. 98
c. 73

, d. 2
ANSWER: D x


Current fast radiographic film requires 98% less exposure time than the initial exposure times
x x x x x x x x x x x x x


used in 1920.
x x x




DIF: Comprehension REF: Page 5 OBJ: 6 xxx x x


TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
x x x x x x x x x


MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
x x x x x x x x x x




7. Who modified the paralleling technique with the introduction of the long-cone technique?
x x x x x x x x x x x


a. C. Edmund Kells
x x


b. Franklin W. McCormack x x


c. F. Gordon Fitzgerald
x x


d. Howard Riley Raper x x




ANSWER: C x


C. Edmund Kells introduced the paralleling technique in 1896. Franklin W. McCormack
x x x x x x x x x x x


reintroduced the paralleling technique in 1920. F. Gordon Fitzgerald modified the
x x x x x x x x x x x


parallelingtechnique with the introduction of the long-cone technique. This is the technique
x x x x x x x x x x x x x


currently used. Howard Riley Raper modified the bisecting technique and introduced the
x x x x x x x x x x x x


bite-wing technique in 1925.
x x x x




DIF: Recall REF: Page 4 OBJ: 7 xxx x x


TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
x x x x x x x x


MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
x x x x x x x x x x




8. Which of the following is an advantage of digital imaging?
x x x x x x x x x


a. Increased patient radiation exposure x x x


b. Increased patient comfort x x


c. Increased speed for viewing images x x x x


d. Increased chemical usage x x




ANSWER: C x


Patient exposure is reduced with digital imaging. Digital sensors are more sensitive to x-rays
x x x x x x x x x x x x x


than film. Digital sensors are rigid and bulky, causing decreased patient comfort. The image
x x x x x x x x x x x x x x


from digital sensors is uploaded directly to the computer and monitor without the need for
x x x x x x x x x x x x x x x


chemical processing. This allows for immediate interpretation and evaluation. The image
x x x x x x x x x x x


fromdigital sensors is uploaded directly to the computer and monitor without the need for
x x x x x x x x x x x x x x x


chemicalprocessing.
x x




DIF: Comprehension REF: Page 6 OBJ: 7 xxx x x


TOP: CDA, RHS, I.B.2. Demonstrate basic knowledge of digital
x x x x x x x x x


radiography
x


MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
x x x x x x x x x x




9. Which discovery was the precursor to the discovery of x-rays?
x x x x x x x x x


a. Beta particles x


b. Alpha particles x


c. Cathode rays x


d. Radioactive materials x




ANSWER: C x