Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
Radiation |
A form of energy carried by waves or a stream of particles. |
|
|
X-radiation |
A high energy radiation produced by the collision of a beam of electrons with a metal target in an xray tube. |
|
|
X-ray |
A beam of energy that has the power to penetrate substances and record image shadows on photographic film or digital sensors. |
|
|
Radiology |
The science or study of radiation as used in medicine. |
|
|
Radiograph |
A two-dimensional representation of a 3D object. |
|
|
Dental Radiograph |
A photographic image produced on an image by the passage of x-rays through teeth and related structures. |
|
|
Radiography |
The art and science of making radiographs by the exposure of film to xrays. |
|
|
Dental Radiography |
The production of radiographs of the teeth and adjacent structures by the exposure of an image receptor to xrays. |
|
|
Dental Radiographer |
Any person who positions, exposes, and processes dental xray image receptors. |
|
|
Importance of Dental Radiographs |
Necessary component in patient care. Enable professionals to identify conditions that may go undetected clinically. Obtain information about teeth and supporting bone. |
|
|
Uses of Radiographs |
Detect lesions, diseases. And conditions of teeth and surrounding structures. Confirm/classify suspected disease. Localize lesions of foreign objects. Provide info during procedures. Evaluate growth/development. Changes to caries, disease, trauma. Document condition of patient. Aid in development of treatment plan. |
|
|
Wilhelm Conrad Roentgen |
Physicist. Discovered xrays. Experimented with production of cathode rays. Used vacuum tube, electrical current, and special screens covered with material that glowed when exposed to radiation. Rays causing screens to glow were named xrays. Exposed wife's hand for 15 minutes. Xrays aka Roentgen rays. Radiology aka Roentgenology. Radiographs aka Roentgengraphs. |
|
|
Heinrich Geissler |
Built first vacuum tube. -sealed glass tube from which most of the air has been vacuumed from. Modified by a number of scientists. |
|
|
Johann Wilhelm Hittorf |
German physicist. Used vacuum tube to study fluorescence. Observed discharges emitted from the negative cathode of the tube traveled in straight lines, produces heat, and resulted in green fluorescence. Discharge = cathode rays. |
|
|
William Crookes |
An English chemist that redesigned the vacuum tube. Discovered that cathode rays were streams of charged particles. |
|
|
Philip Lenard |
Discovered cathode rays could penetrate a thin window of aluminum foil in the walls of glass tube station and causes fluorescent screens to glow. Aluminum was made thicker fluorescent screens would not glow. |
|
|
Otto Walkhoff |
German dentist. Made first dental Radiograph. Photographic plate wrapped in the black paper and rubber in his mouth -25 minutes. |
|
|
W.J. Morton |
New York physician. Made first U.S. Radiograph using a skull. Lectured on usefulness of radiographs. Made first whole body Radiograph 3x6 feet of film. |
|
|
C. Edmund Kells |
New Orleans dentist- first practical use of radiographs in dentistry. Exposed first in U.S. on living person. Exposed hands to xrays for several years. Overexposed and caused cancer in hands. Eventually lost fingers, hands, then arms. Introduced paralleling technique. |
|
|
William H. Rollins |
Developed first xray unit. Burned hands from overexposure. Published paper on dangers of radiation. |
|
|
Frank Van Wert |
First to use film in intraoral radiography. |
|
|
Howard Riley |
Established first college course in radiology for dental students. |
|
|
William D. Coolidge |
Developed first cathode xray tube, high vacuum tube that contained a tungsten filament. Prototype for all modern tubes. Later tube was immersed in oil, which is the precursor to modern xray units. |
|
|
Eastman Kodak Company |
1913 - manufactured prewrapped intraoral films. |
|
|
Fast Films = |
Shorter exposure time. |
|
|
Weston Price |
Introduced bisecting technique. |
|
|
Howard Riley Raper |
redefined bisecting technique.Introduced bitewing technique - one of the first radiology textbooks. |
|
|
F. Gordon Fitzgerald |
Introduced the long cone paralleling technique. |
|
|
Hisatuga Numata |
First to expose a pan (extraoral technique) |
|
|
Yrjo Paatero |
Experimented with slit beam radiography with intensifying screens. |
