Chapter 1 Flashcards
A form of energy carried by waves or a stream of particles.
radiation
A high-energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube.
X-radiation
A beam of energy that has the power to penetrate substances and record image shadows on photographic film or digital sensors.
X-ray
The science or study of radiation as used in medicine; a branch of medical science that deals with the use of x-rays, radioactive substances, and other forms of radiant energy in the diagnosis and treatment of disease.
Radiology
A two-dimensional representation of a three-dimensional object. In practice, often called an “x-ray”; this is not correct. X-ray (also x ray) is a term that refers to a beam of energy.
radiograph
A photographic image produced on an image receptor by the passage of x-rays through teeth and related structures.
Dental radiograph
The art and science of making radiographs by the exposure of film to x-rays.
radiography
The production of radiographs of teeth and adjacent structures by the exposure of an image receptor to x-rays.
dental radiography
Any person who positions, exposes, and processes dental x-ray image receptors.
dental radiographer
A picture or likeness of an object.
image
Creation of digital, print, or film representations of teeth and surrounding structures.
dental image
A recording medium; may be a digital sensor, a PSP plate or film.
receptor
T/F. -graphy indicates an art or science. -ology is a branch of learning.
true.
What is the importance of dental images?
necessary component of patient care
allows detection of conditions not seen clinically
detection detection detection
What are the EIGHT uses of dental images?
- to DETECT diseases and conditions of teeth and bone
- to CONFIRM or CLASSIFY disease
- to LOCALIZE lesions or foreign objects
- to PROVIDE INFO during dental procedures
- to EVALUATE growth and development
- to ILLUSTRATE changes due to disease or trauma
- to DOCUMENT a condition of patient at point in time
- to AID in development of treatment plan
When and who discovered x-rays?
Wilhelm Roentgen in 1895
Who took the first dental radiograph in 1896?
Otto Walkoff
Who exposed the first dental radiograph in the US using a living person in 1896?
Edmund Kells
Who introduced the bisecting technique in 1904?
Weston Price
When and who took the first dental radiograph in the US of the skull?
W.J. Morton
Who wrote the first paper on the dangers of x-radiation?
W.H. Rollins in 1901
Who created the first x-ray tube?
W.D. Coolidge in 1913
Who introduced the bitewing technique in 1925?
HR Raper
When was the concept of rotational panoramics proposed?
1933
Who introduced the paralleling technique?
FG Fitzgerald in 1947
When was panoramic radiography introduced?
1948
When was d-speed, e-speed and f-speed film introduced?
1955
1981
2000
When was dental xeroradiography introduced?
1978
When did oral and maillofacial radiology become a specialty in dentistry?
1999
When, what and how long was the first radiograph?
1895 (Roentgen)
human hand
exposure time was 15 minutes
When was the first pre-wrapped dental films mades?
1913 by Eastman Kodak Company
When was the first dental x-ray machine made?
1923 by Victor X-ray Corp, Chicago
When was the intraoral digital radiography introduced?
1987
When was the cone-beam computed tomography (cbct) introduced?
1998
When was the first variable-kilovoltage dental x-ray machine made?
1957 by General Electric
T/F. Digital imaging requires MORE radiation because the digital sensor is LESS sensitive to x-rays than dental film.
False, Digital imaging requires LESS radiation because the digital sensor is MORE sensitive to x-rays than dental film.
T/F. Exposure time is 50% - 90% less than what is required for film.
True.
Exposure time for digital imaging is ___ seconds compared to ___ seconds with film.
0.05s; 0.02s
