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Test Bank for Dental Radiography Principles and Techniques 4th Edition by Haring
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Test Bank for Dental Radiography Principles and Techniques 4th Edition by Haring
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Iannucci: Dental Radiography, 4th Edition
Chapter 01: Radiation History
Test Bank
MULTIPLE CHOICE
- 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 photographic film. |
| 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. |
ANS: A
| Feedback | |
| A | Radiation is a form of energy carried by waves or streams of particles. |
| B | An x-ray is a beam of energy that has the power to penetrate substances and record image shadows on photographic film. |
| C | 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. |
| D | Radiology is a branch of medicine that deals with the use of x-rays. |
PTS: 1 REF: Page 2, Basic Terminology
- A radiograph is defined as:
| A. | A beam of energy that has the power to penetrate substances and record image shadows on photographic film. |
| 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 film to x-rays. |
| D. | A form of energy carried by waves or a stream of particles. |
ANS: B
| Feedback | |
| A | An x-ray is a beam of energy that has the power to penetrate substances and record image shadows on photographic film. |
| B | A radiograph is a picture on film produced by the passage of x-rays through an object or body. |
| C | Radiography is the art and science of making radiographs by the exposure of film to x-rays. |
| D | Radiation is a form of energy carried by waves or streams of particles. |
PTS: 1 REF: Page 3, Basic Terminology
- Which of the following statements is true regarding the importance of dental radiographs?
| A. | An oral examination with dental radiographs limits the practitioner to what is seen clinically. |
| B. | All dental diseases and conditions produce clinical signs and symptoms. |
| C. | Dental radiographs are not a necessary component of comprehensive patient care. |
| D. | Many dental diseases are typically discovered only through the use of dental radiographs. |
ANS: D
| Feedback | |
| A | An oral examination without dental radiographs limits the practitioner to what is seen clinically. |
| B | Many dental diseases and conditions produce no clinical signs and symptoms. |
| C | Dental radiographs are a necessary component of comprehensive patient care. |
| D | Many dental diseases are typically discovered only through the use of dental radiographs. |
PTS: 1 REF: Page 3, Importance of Dental Radiographs
- The x-ray was discovered by:
| A. | Heinrich Geissler | C. | Johann Hittorf |
| B. | Wilhelm Roentgen | D. | William Crookes |
ANS: B
| Feedback | |
| A | Heinrich Geissler built the first vacuum tube in 1838. |
| B | Wilhelm Roentgen discovered the x-ray on November 8, 1895. |
| C | 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. |
| D | William Crookes discovered in the late 1870s that cathode rays were streams of charged particles. |
PTS: 1 REF: Page 3, Roentgen and the Discovery of X-Rays
- 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 |
ANS: C
| Feedback | |
| A | Otto Walkoff was a German dentist who made the first dental radiograph. |
| B | Wilhelm Roentgen was a Bavarian physicist who discovered the x-ray. |
| C | Edmund Kells exposed the first dental radiograph in the United States using a live person. |
| D | Weston Price introduced the bisecting technique in 1904. |
PTS: 1 REF: Page 5, Pioneers in Dental X-Radiation
- William Rollins:
| A. | Established the first college course in radiography for dental students. |
| B. | Was the first to use film in intraoral radiography. |
| C. | Developed the first dental x-ray unit. |
| D. | Developed the first hot cathode x-ray tube. |
ANS: C
| Feedback | |
| A | Howard Riley Raper developed the first college course in radiography for dental students. |
| B | Frank Van Woert was the first dentist to use film in intraoral radiography. |
| C | William Rollins developed the first dental x-ray unit. |
| D | William D. Coolidge developed the first hot cathode x-ray tube. |
PTS: 1 REF: Page 5, Pioneers in Dental X-Radiation
- The variable kilovoltage x-ray machine was introduced in:
| A. | 1895 | C. | 1923 |
| B. | 1913 | D. | 1957 |
ANS: D
| Feedback | |
| A | Wilhelm Roentgen discovered the x-ray in 1895. |
| B | William Coolidge developed the first hot cathode x-ray tube in 1913. |
| C | A miniature version of the x-ray tube was placed inside the head of an x-ray machine and immersed in oil by the Victor X-Ray Corporation in 1923. |
| D | The variable kilovoltage x-ray machine was introduced in 1957. |
PTS: 1 REF: Page 6, Table 1-1 Highlights in the History of Dental Radiography
- Current fast radiographic film requires less than ____ % of the initial exposure times used in 1920.
| A. | 25 | C. | 5 |
| B. | 10 | D. | 2 |
ANS: D
| Feedback | |
| A | The exposure time has been reduced to less than 2% of what it was in 1920. |
| B | The exposure time has been reduced to less than 2% of what it was in 1920. |
| C | The exposure time has been reduced to less than 2% of what it was in 1920. |
| D | Current fast radiographic film requires less than 2% the initial exposure times used in 1920. |
PTS: 1 REF: Page 5-6, History of Dental X-Ray Film
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