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Radiography > Radiography > Flashcards

Radiography Flashcards

1
Q

Define Radiation

A

Energy carried by waves or streams of particles

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2
Q

Define X-radiation

A

High energy radiation produced by the collision of a beam of electrons with a metal target in an X-ray tube (fast waves)
X-radiation produces x-rays (photons)

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3
Q

Define X-ray/photons

A

A beam of energy that has the power to penetrate substances and record image shadows on photographic films

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4
Q

Define Radiology

A

The science or study of radiation as used in medicine; a branch of medical studies that deals with the use of x-rays, radioactive substances, and other forms of radiant energy in the diagnosis and treatment of disease

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5
Q

Define Radiograph

A

A visible photographic record on film produced by the passage of x-rays through an object or body; also called x-ray film

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6
Q

Acceptable names for radiographic images

A

X-ray films
Radiographs
Dental Radiographs

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7
Q

Define Dental Radiograph

A

A photographic image produced on film by the passage of x-rays through teeth and related structures

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8
Q

Define Radiography

A

The art and science of making radiographs by the exposure of film to x-rays

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9
Q

Define Dental Radiography

A

The production of radiographs of the teeth and adjacent structures by the exposure of film to x-rays

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10
Q

Define Dental Radiographer

A

A person who positions, exposes, and processes x-ray film

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11
Q

Define Image

A

A picture or likeness of an object

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12
Q

Define Image Receptor

A

A recording medium; examples include x-ray film, phosphor plate, or digital sensor

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13
Q

Define Imaging, Dental

A

The creation of digital, print, or film representations of anatomic structures for the purpose of diagnosis

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14
Q

Why are Dental Images so important?

A

Dental images enable to dental professional to identify many conditions that may otherwise go undetected and to see conditions that cannot be identified clinically
Many dental diseases and conditions have no clinical signs or symptoms

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15
Q

Name 3 Uses of Dental Images

A 
Detect lesions
Confirm or classify suspected disease
Localize lesions or foreign objects
Provide information during dental procedures
Evaluate growth and development
Illustrate changes secondary to caries, periodontal disease, trauma
Document the condition of a patient
Aid in developing a treatment plan
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16
Q

Who discovered x-rays and how?

A

Wilhelm Conrad Roentgen, he was experimenting with vacuum tubes and fluorescent screens and noticed the screens were glowing even though they were several feet from the tube. After replacing the fluorescent screens with photographic plates, he was able to permanently capture images.

17
Q

Who was Heinrich Geissler?

A

Built the first vacuum tube, his tubes were used in the making of neon lighting

18
Q

Who was Johann Hittorf?

A

Used the vacuum tube to study fluorescence, was also the first scientist to calculate the electric capacity of ions

19
Q

Who was William Crookes?

A

Discovered that cathode rays were streams of charged particles. Made many discoveries with tubes, including one that led to the discovery of TV tubes

20
Q

Who was Philip Lenard?

A

Discovered that cathode rays could penetrate a thin window made of aluminum foil. It is thought that he may have discovered x-rays if he had used more sensitive fluorescent screens

21
Q

Who was Otto Walkhoff?

A

Made the first dental radiograph by exposing his own mouth on a radiographic plate for 25 minutes and using mannequins

22
Q

Who was W.J. Morton?

A

Made the first radiograph using a skull. In team with Thomas Edison, gave warning of the adverse effects of x-rays.

23
Q

Who was C. Edmund Kells?

A

Exposed the first dental radiograph in the US using a living person. Later developed cancerous tumours in his fingers, hands and his arm from working with x-rays everyday
Also introduced paralleling technique

24
Q

Who was William H. Rollands?

A

Developed the first dental x-ray UNIT

25
Q

Who was Frank Van Woert?

A

First to use film in intraoral radiography

26
Q

Who was Howard Riley Raper?

A

Established the first college course in radiography for dental students
Redefined original bisecting technique and introduced the bite-wing technique

27
Q

Who was Eastman Kodak?

A

Manufactured prewrapped intraoral film, before that, hand-wrapped photographic glass or film were used. Light cannot pass through film packs but x-rays can

28
Q

Who was Weston Price?

A

Invented the bisecting technique

Radiography (25 decks)

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