ch.1 intro/ history
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| define radiation | a form of energy carried by waves or a stream of particles
🗑
|
||||
| define x-radiation | high energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube
🗑
|
||||
| define x-ray | abeam of energy that has the power to penetrate substances and record image shows on photograpic film
🗑
|
||||
| define radiology | science or study of radiation
🗑
|
||||
| define dental radiograph | photographic image produced on film by the passage of x-rays through teeth and related structures
🗑
|
||||
| define dental radiographer | any person that positions, exposes, and processes dental x-ray film
🗑
|
||||
| 6 important reasons for dental radiographs | 1detect lesions 2 localize lesions/ foreign objects 3provide info during procedures (rct) 4evaluate growth & development 5 illustrate changes secondary to caries, perio & trauma 6document the condition of pt at specific point in time
🗑
|
||||
| discovered x-rays give: name, career, date discovered, object used for 1st film | Wilhelm Roentgen, bavarian physicist, 11/8/1895, wife's hand for 15 min
🗑
|
||||
| why did Roentgen give name x-ray | b/c x refers to the unknown as in math
🗑
|
||||
| Otto Walkhoff: career, what contribution to dentistry related to x-rays | german dentist, took first dental radiograph on self in 1896- took 25min
🗑
|
||||
| Dr. Kells contribution to x-ray technology | credited for first practical use of dental fillms, exposed hands to nemerous x-rays every day for years, lost fingers, hands, then arm
🗑
|
||||
| Dr. Rollins contribution to x-ray tech | 1901 developed first dental x-ray unit, radiation burn on his arm resulted in study of radiation protection, first wrapped dental film
🗑
|
||||
| William Collidge contribute to x-ray tech | electrical engineer developed first hot cathode x-ray tube w/ tungsten filament, first prototype for modern x-ray tubes, hs prototype revolutionezed the generation of x-rays
🗑
|
||||
| Victor X-Ray Corp first dental x-ray machine produced in yr/ type | 1923 tube head with oil introduced
🗑
|
||||
| GE contribution to x-ray unit | 1933introduced improved version of Victor X-ray machine immersed in oil, has been little change since then
🗑
|
||||
| GE introduces new feature 1957 | variable kilovoltage
🗑
|
||||
| 1966 new feature for tubehead | recessed long-beam tubehead introduced
🗑
|
||||
| film hx: 1896-1913 | glass photographic plates hand wrapped
🗑
|
||||
| film hx: 1913 | Kodak introduced pre-wrapped film
🗑
|
||||
| film hx: 1920 | machine produced pre-wrapped film
🗑
|
||||
| technique hx: 1904 technique, improved by dentist in 1925 | bisect technique
🗑
|
||||
| technique hx: introduced by Kells in 1896, improved in 1920, improved again w/ long cone in 1947 | paralleling technique
🗑
|
||||
| panoramic film introduced where/ when | Japan/ 1933
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
ShellyA&P
Popular Laboratory Science sets