Test bank for dental radiography principles and techniques 5th edition joen iannucci laura howerton

TEST BANK For Dental Radiography:
b b b b b




Principles and Techniques 6th Edition
b b b b b




by Joen Iannucci & Laura Jansen Howerton
b b b b b b b




Chapters 1 - 35 | Complete
b b b b b b

,Chapter 01: Radiation History
b b b




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




MULTIPLE CHOICE b




1. Radiation is defined as b b b




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




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




shadows on a receptor.
b b b b




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




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




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




ANSWER: A b




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




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




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




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




x-rays.

DIF: Recall REF: Page 2 OBJ: 1 bbb b b




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




MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysicsand
b b b b b b b b b b b b b




radiobiology
b




2. A radiograph is defined as
b b b b




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




shadows on a receptor.
b b b b




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




c. the art and science of making radiographs by the exposure of an image receptor tox-
b b b b b b b b b b b b b b b




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




ANSWER: B b




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




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




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




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




particles.
b




DIF: Comprehension REF: Page 2 OBJ: 1 bbb b b




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




MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysicsand
b b b b b b b b b b b b b




radiobiology
b




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




correct response?
b b




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




clinically.
b




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

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




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




images.
b




ANSWER: D b




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




dental diseases and conditions produce no clinical signs and symptoms. Dental imagesare a
b b b b b b b b b b b b b b




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




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




DIF: Application REF: Page 2 OBJ: 2 bbb b b




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




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




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




a. Heinrich Geissler b




b. Wilhelm Roentgen b




c. Johann Hittorf b




d. William Crookes b




ANSWER: B b




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




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




negative electrode of a vacuum tube traveled in straight lines, produced heat, and resultedin a
b b b b b b b b b b b b b b b b




greenish fluorescence. William Crookes discovered in the late 1870s that cathode rays were
b b b b b b b b b b b b b




streams of charged particles.
b b b b




DIF: Recall REF: Page 2 OBJ: 4 bbb b b




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




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




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




a. Otto Walkoff b




b. Wilhelm Roentgen b




c. Edmund Kells b




d. Weston Price b




ANSWER: C b




Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm Roentgenwas a
b b b b b b b b b b b b b b b




Bavarian physicist who discovered the x-ray. Edmund Kells exposed the first dental radiograph in
b b b b b b b b b b b b b b




the United States using a live person. Price introduced the bisecting technique in 1904.
b b b b b b b bbb b b b b b b




DIF: Recall REF: Page 4 OBJ: 5 bbb b b




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




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




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




times used in 1920.
b b b b




a. 33
b. 98
c. 73

, d. 2
ANSWER: D b




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




used in 1920.
b b b




DIF: Comprehension REF: Page 5 OBJ: 6 bbb b b




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




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




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




a. C. Edmund Kells b b




b. Franklin W. McCormack b b




c. F. Gordon Fitzgerald
b b




d. Howard Riley Raper b b




ANSWER: C b




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




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




technique with the introduction of the long-cone technique. This is the technique currently used.
b b b b b b b b b b b b b b




Howard Riley Raper modified the bisecting technique and introduced the bite-wing technique in
b b b b b b b b b b b b b




1925.
b




DIF: Recall REF: Page 4 OBJ: 7 bbb b b




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




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




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




a. Increased patient radiation exposure b b b




b. Increased patient comfort b b




c. Increased speed for viewing images b b b b




d. Increased chemical usage b b




ANSWER: C b




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




film. Digital sensors are rigid and bulky, causing decreased patient comfort. The image from
b b b b b b b b b b b b b b




digital sensors is uploaded directly to the computer and monitor without the need for chemical
b b b b b b b b b b b b b b b




processing. This allows for immediate interpretation and evaluation. The image fromdigital
b b b b b b b b b b b b




sensors is uploaded directly to the computer and monitor without the need for chemical
b b b b b b b b b b b b b b




processing.
b




DIF: Comprehension REF: Page 6 OBJ: 7 bbb b b




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




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




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




a. Beta particles b




b. Alpha particles b




c. Cathode rays b




d. Radioactive materials b




ANSWER: C b