Radiology History

Question 1

Who Discovery of x-rays? What year?

Answer 1

W. C. Roentgen / 1895

Question 2

First dental radiograph
What year?

Answer 2

O. Walkhoff / 1896

Question 3

First dental radiograph in United
States (skull)

Answer 3

W. J. Morton / 1896

Question 4

First dental radiograph in United
States (living patient)

Answer 4

C. E. Kells / 1896

Question 5

First paper on dangers of
x-radiation

Answer 5

W. H. Rollins / 1901

Question 6

Introduction o bisecting
te chnique

Answer 6

1904 W. A. Price

Question 7

First dental text

Answer 7

1913 H. R. Raper

Question 8

First prewrapped dental f lms

Answer 8

1913 Eastman Kodak Company

Question 9

First x-ray tube

Answer 9

1913 W. D. Coolidge

Question 10

First machine-made f lm packets

Answer 10

1920 Eastman Kodak Company

Question 11

First dental x-ray machine

Answer 11

1923 Victor X-Ray Corp, Chicago

Question 12

Introduction o bite-wing te chnique

Answer 12

1925 H. R. Raper

Question 13

Concept o rotational panoramics proposed

Answer 13

1933

Question 14

Introduction o long-cone paralleling technique

Answer 14

1947 F. G. Fitzgerald

Question 15

Introduction of panoramic radiography

Answer 15

1948

Question 16

Introduction of D-speed f lm (Kodak Ultra-speed)

Answer 16

1955

Question 17

First variable-kilovoltage dental x-ray machine

Answer 17

1957 General Electric

Question 18

Introduction o dental xeroradiography

Answer 18

1978

Question 19

Introduction o E-speed f lm (Kodak Ektaspeed)

Answer 19

1981

Question 20

Introduction o intraoral digital imaging in France

Answer 20

1987

Question 21

Dental tomography scanners become available

Answer 21

1989

Question 22

Introduction o Kodak Ektaspeed Plus flm

Answer 22

1994

Question 23

Introduction o digital sensor or panoramic unit

Answer 23

1995

Question 24

Introduction o cone-beam computed tomography (CBCT)
For dental use

Answer 24

1998

Question 25

Cone-beam CT scanners available
in Europe

Answer 25

1999

Question 26

Oral and m axillo acial radiology
becomes a specialty in dentistry

Answer 26

1999

Question 27

Introduction o F-speed f lm
(Kodak/Carestream Dental
IN S IG H T)

Answer 27

2000

Question 28

Cone-beam CT scanners available
in the United States

Answer 28

2001