Question 1

Radiation is defined as:&#10;A) A form of energy carried by waves or streams of particles.&#10;B) A beam of energy that has the power to penetrate substances and record image shadows on photographic film.&#10;C) A high-energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube.&#10;D) A branch of medicine that deals with the use of x-rays.

Accepted Answer

Radiation is a form of energy that can be carried by waves or particles, as defined by the International Atomic Energy Agency. This form of energy can come in many different types such as light, heat, and electromagnetic radiation.

Answer: B
 Radiography is a technique that involves the use of X-rays to produce images of the internal structure of an object. This is accomplished by passing a beam of X-rays through the object and recording the shadows that are produced on a photographic film.

Answer: C
 X-rays are a type of high-energy radiation that is produced by the collision of a beam of electrons with a metal target inside an X-ray tube. This process produces X-rays that can be used for medical imaging, material testing, and many other applications.

Answer: D
 Radiology is the branch of medicine that deals with the use of X-rays and other forms of radiation for medical imaging and treatment. Radiologists are responsible for interpreting images produced by X-rays, CT scans, MRIs, and other medical imaging techniques.

Question 2

The x-ray was discovered by:&#10;A) Heinrich Geissler&#10;B) Wilhelm Roentgen&#10;C) Johann Hittorf&#10;D) William Crookes

Accepted Answer

The x-ray was discovered by Wilhelm Roentgen in 1895.

Question 3

The variable kilovoltage x-ray machine was introduced in:&#10;A) 1895&#10;B) 1913&#10;C) 1923&#10;D) 1957

Accepted Answer

1957

Question 4

A radiograph is defined as:&#10;A) A beam of energy that has the power to penetrate substances and record image shadows on photographic film.&#10;B) A picture on film produced by the passage of x-rays through an object or body.&#10;C) The art and science of making radiographs by the exposure of film to x-rays.&#10;D) A form of energy carried by waves or a stream of particles.

Accepted Answer

A radiograph is a picture on film produced by the passage of x-rays through an object or body. Options A, C, and D describe aspects related to radiography but do not fully capture the definition of a radiograph.

Question 5

Who exposed the first dental radiograph in the United States using a live person?&#10;A) Otto Walkoff&#10;B) Wilhelm Roentgen&#10;C) Edmund Kells&#10;D) Weston Price

Accepted Answer

Edmund Kells was a dentist and the first person to use radiographs on a live patient in the United States. He worked closely with the inventor of the X-ray, Wilhelm Roentgen, and was one of the earliest advocates for the use of radiography in dentistry.

Question 6

William Rollins:&#10;A) Established the first college course in radiography for dental students.&#10;B) Was the first to use film in intraoral radiography.&#10;C) Developed the first dental x-ray unit.&#10;D) Developed the first hot cathode x-ray tube.

Accepted Answer

William Rollins is credited with developing the first dental x-ray unit, contributing significantly to the field of dental radiography.

Question 7

Current fast radiographic film requires less than ____ % of the initial exposure times used in 1920.&#10;A) 25&#10;B) 10&#10;C) 5&#10;D) 2

Accepted Answer

Current fast radiographic film requires less than 2% of the initial exposure times used in 1920.

Question 8

Which of the following statements is true regarding the importance of dental radiographs?&#10;A) An oral examination with dental radiographs limits the practitioner to what is seen clinically.&#10;B) All dental diseases and conditions produce clinical signs and symptoms.&#10;C) Dental radiographs are not a necessary component of comprehensive patient care.&#10;D) Many dental diseases are typically discovered only through the use of dental radiographs.

Accepted Answer

Dental radiographs are important because many dental diseases may not have obvious clinical signs and symptoms. Dental radiographs allow for the detection of these conditions and assist in the development of a comprehensive treatment plan for the patient. An oral examination with dental radiographs provides a more complete picture of the patient's dental health.

Deck 1: Radiation History