History

Question 1

Manufactured a miniature version of the X-ray tube placed inside the head of an X-ray machine and immersed oil

Answer 1

Victor X-ray corporation of Chicago

Question 2

Made the first dental radiograph in the US using a skull

Answer 2

W.J. Morton

Question 3

Exposed the first dental radiograph in the US using a live patient

Answer 3

Carl Edmund KELLS

Question 5

Built the first vacuum tube

Answer 5

Johann Heinrich Wilhelm Geissler

Question 6

Electrical engineer who developed the first hot cathode X-ray tube in 1913

Answer 6

William Coolidge

Question 8

Made the first dental radiograph

Answer 8

Otto walkoff

Question 9

Published the first paper on the dangers associated with radiation

Answer 9

William Herbert Rollins

Question 11

Father of modern dental radiography

Answer 11

F. Gordon Fitzgerald

Question 12

First to expose a panoramic radiograph (intraoral)

Answer 12

Hisatugu numata

Question 13

Established the first collage course in radiography for dental students

Answer 13

Howard Riley Raper

Question 14

Develop first dental x-Ray unit

Answer 14

William Herbert Rollins

Question 16

Authored one of the first dental radiography textbook

Answer 16

Howard Riley raper

Question 17

This became the prototype for all modern X-ray tube

Answer 17

Coolidge’s X-ray tube

Question 18

Introduced an X-ray machine with improved features in 1933

Answer 18

General Electric

Question 19

Date where dental X-ray packets consisted of glass photographic plate or film cut into small pieces and hand wrapped in black paper and rubber

Answer 19

1896- 1913

Question 21

Introduced bisecting technique in 1904

Answer 21

Weston price

Question 22

First dental x-Ray machine

Answer 22

Victor X-ray corporation of Chicago

Question 23

When does x-rays discovered?

Answer 23

November 8, 1895

Question 24

Introduced the Paralleling technique

Answer 24

Carl Edmund KELLS

Question 26

Redefined the bisecting technique

Answer 26

Howard Riley Raper

Question 27

Father of panoramic radiography (extraoral)

Answer 27

Yrjo Paatero

Question 28

Manufactured the first prewrapped intraoral film in 1913

Answer 28

Eastman Kodak company

Question 29

Discovery of X-ray

Answer 29

Roentgen (1895)

Question 30

What do you call the first vacuum tube ?

Answer 30

Geissler Tube

Question 31

Discovered that cathode Rays could penetrate a thin window of aluminum foil built into the wall of the glass tubes and cause fluorescent screens to glow

Answer 31

Philip Eduard Anton Von Lenard

Question 32

Introduction of long cone paralleling technique

Answer 32

F. Gordon Fitzgerald

Question 33

He observed that the discharges emitted from the negative electrode of the tube traveled in straight
Iines, produced heat and resulted in greenish fluorescence

Answer 33

Johann Wilhelm Hittorf

Question 34

Discovered that the cathode Rays were streams of charged paticles

Answer 34

William crookes

Question 35

First machine made film packets

Answer 35

Eastman Kodak company

Question 36

Father of x-Rays

Answer 36

Wilhelm Conrad Roentgen

Question 39

Pioneers in DENTAL X-RADIATION

Answer 39

WALKOFF, MORTON, KELLS, ROLLINS, WOERT, RAPER

Question 40

First variable kilovoltage dental X-ray machine

Answer 40

General Electric

Question 41

Introduced the CATHODE RAYS

Answer 41

Johann Wilhelm Hittorf

Question 42

Used the vacuum tube to study fluorescence

Answer 42

Johann Wilhelm Hittorf

Question 43

When does D, E and F speed film introduced, respectively ?

Answer 43

1955, 1981, 2000

Question 44

When does the digital radiography been introduced in France?

Answer 44

1987

Question 46

Introduced the bitewing technique

Answer 46

Howard Riley Raper

Question 47

First to use film in intraoral radiography

Answer 47

Frank van WOERT