15 Questions
Which term refers to a high-energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube?
X-radiation
What is the purpose of dental images in patient care?
To detect disease
What is a radiograph?
A two-dimensional representation of a three-dimensional object
Which component is NOT a main component of an extraoral x-ray machine?
Receptor holder
What is the purpose of a bite-block in dental imaging?
To separate the anterior teeth
Which device is used to help position the PID in relation to the tooth and receptor?
Beam alignment device
What is the purpose of a collimating device in dental imaging?
To restrict the size of the x-ray beam
Which physicist discovered x-rays?
Wilhelm Conrad Roentgen
Which company manufactured the first prewrapped intraoral films in 1913?
Eastman Kodak Company
What did Roentgen name his discovery?
X-rays
When did the first machine-made periapical film packets become available?
1920
Who made the first dental radiograph?
Otto Walkhoff
What technique did F. Gordon Fitzgerald revive in 1947?
Long-cone paralleling technique
What did C. Edmund Kells contribute to dentistry?
First practical use of radiographs
What does the control panel in a typical intraoral dental x-ray machine consist of?
On-off switch, exposure button, and control device for kilovoltage
Study Notes
X-rays and Dental Imaging
- X-rays are a high-energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube.
- Dental images are used in patient care to diagnose and treat dental problems, monitor treatment progress, and detect diseases.
Components of an X-ray Machine
- The main components of an extraoral x-ray machine do not include a developing tank.
- A bite-block is used to position the patient's jaw during dental imaging.
- A positioning device (PID) is used to help position the x-ray receptor in relation to the tooth.
- A collimating device is used to restrict the x-ray beam to the size of the receptor, reducing radiation exposure.
History of Dental Radiography
- Wilhelm Conrad Roentgen discovered x-rays in 1895.
- Roentgen named his discovery "X-rays" because he did not know what they were.
- The Eastman Kodak Company manufactured the first prewrapped intraoral films in 1913.
- The first machine-made periapical film packets became available in 1913.
- Dr. Otto Walkhoff made the first dental radiograph in 1896.
- In 1947, F.Gordon Fitzgerald revived the technique of panoramic radiography.
- C.Edmund Kells contributed to dentistry by being the first to use dental radiographs in practice.
X-ray Machine Control Panel
- The control panel in a typical intraoral dental x-ray machine consists of a timer, a kVp and mA selector, and an exposure button.
Test your knowledge of the history and advancements in dental radiography! Learn about the evolution of film technology and how it has revolutionized the field of dentistry. Discover the improvements in exposure time and film quality, and see how far we've come in capturing accurate dental images.
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