Understanding the X-Ray Technology

Tianqiong - Tuesday, October 17, 2017.
Enviado por ghisdjk

Digital dentistry techniques have grown in popularity in recent years with the advance of computers and other technologies such as digital sensors.

Digital radiography is a type of X-ray imaging in which the images are transposed digitally onto computers or other devices rather than being developed onto film. Instead of using electromagnetic radiation and chemical processing to record an X-ray onto film, digital versions use digital sensors to record images onto an image capture device, which then creates a digital image file.


This file can then be used by medical staff members, and the file can be attached to a patient’s medical notes for future reference. It can be printed to paper or slide material so can be used the same as any standard portable dental x rays unit, but without as much risk and usually at lower overall cost. The initial expenses with a digital system can be immense, but over time they usually pay for themselves.

These sorts of imaging devices are most commonly seen in hospitals, specialist medical practices, and dental offices. Dental imaging requires a slightly different process but the technology and basic concept are the same.

Electromagnetic radiation has been used in the medical profession for imaging and diagnostics for many years. X-radiation technology, known more simply as X-ray technology, allows accurate images to be captured of a person, animal, or thing’s internal composition. A generator uses strong electromagnetic light paired with a detector; most things, humans included, will naturally absorb some of the light, which is what allows the detector to map out images and specific locations.

Most of the earliest X-rays depended on photographic films to capture the images and make them readable. Digital detectors skip this step; rather than using light beamed through objects onto film, it allows for digital scanning and image interpretation. In terms of radiation the two are about the same initially, though digital versions typically have a shorter exposure time and as such tend to be more efficient.

There are usually two types of digital radiography. The first, known as indirect digital radiography, involves amorphous silicon (a-Si) flat panel detectors, and it works by converting X-ray images to light and channeling the image through an amorphous silicon photodiode layer that converts it to a digital signal. Thin film transistors (TFTs) then read this digital output, and it is turned into a data file that can be viewed by the X-ray technician. The technician checks that the X-ray is of a high quality and shows the desired body part clearly, then he or she forwards it electronically to a radiologist for interpretation. This is the most common form and is used for most medical imagery.

The use of lasers in dental care is also commonly included in the term digital dentistry, because controlling these devices involves digital signals. Diode lasers are commonly used, although other types, such as carbon dioxide gas lasers, are also used for some purposes. Dental lasers can be used for purposes such as drilling cavities, cosmetic procedures, and destroying diseased tissue.

Original source:https://www.oyodental.com/Understanding-%20the-X-Ray-Technology

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