TEST BANK Dental Radiography: Principles and Techniques 6TH

TEST BANK Dental Radiography: Principles and Techniques 6TH

EDITION by Joen Iannucci & Laura Jansen Howerton Chapters 1 - 35 | Complete||2024/2025.

Chapter 01: Radiation History

MULTIPLE CHOICE

• Radiation is defined as
• a form of energy carried by waves or streams of particles.
• a beam of energy that has the power to penetrate substances and record image

shadows on a receptor.

• a high-energy radiation produced by the collision of a beam of electrons with a metal

target in an x-ray tube.

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

ANS: 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

• A radiograph is defined as
• a beam of energy that has the power to penetrate substances and record image

shadows on a receptor.

• a picture on film produced by the passage of x-rays through an object or body.
• the art and science of making radiographs by the exposure of an image receptor to x-

rays.

• a form of energy carried by waves or a stream of particles.

ANS: 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

• Your patient asked you why dental images are important. Which of the following is the correct

response?

• An oral examination with dental images limits the practitioner to what is seen

clinically.

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

• Dental images are not a necessary component of comprehensive patient care.
• Many dental diseases are typically discovered only through the use of dental

images.

ANS: 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

• The x-ray was discovered by
• Heinrich Geissler
• Wilhelm Roentgen
• Johann Hittorf
• William Crookes

ANS: 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

• Who exposed the first dental radiograph in the United States using a live person?
• Otto Walkoff
• Wilhelm Roentgen
• Edmund Kells
• Weston Price

ANS: 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

• Current fast radiographic film requires % less exposure time than the initial exposure

times used in 1920.

• 33
• 98
• 73