What are radiographic techniques?
What are radiographic techniques?
Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object. To create an image in conventional radiography, a beam of X-rays is produced by an X-ray generator and is projected toward the object.
What are the different techniques of intraoral radiography?
Two types of exposure techniques may be used for intraoral periapical radiography: the paralleling and the bisecting angle technique (Figures 1 and 2). With the paralleling technique, the tooth and the sensor are both kept on a parallel planes.
How many types of radiography are there?
There are three types of diagnostic radiographs taken in today’s dental offices — periapical (also known as intraoral or wall-mounted), panoramic, and cephalometric. Periapical radiographs are probably the most familiar, with images of a few teeth at a time captured on small film cards inserted in the mouth.
What is the principle of radiography?
It is based on the principle that radiation is absorbed and scattered as it passes through an object. If there are variations in thickness or density (e.g. due to defects) in an object, more or less radiation passes through and affects the film exposure. Flaws show up on the film, usually as dark areas.
What is lat xray?
Lateral X-ray: An X-ray taken from the side of the patient.
What is AP xray?
AP, X-ray: An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front.
What is the function of radiography?
Description. It is used to diagnose or treat patients by recording images of the internal structure of the body to assess the presence or absence of disease, foreign objects, and structural damage or anomaly. During a radiographic procedure, an x-ray beam is passed through the body.
Why is radiography test required?
Radiographic testing provides a permanent record in the form of a radiograph and provides a highly sensitive image of the internal structure of the material. The amount of energy absorbed by the object depends on its thickness and density. Energy not absorbed by the object causes exposure of the radiographic film.
How do you test for radiography?
Radiographic Testing (RT) is a non-destructive testing (NDT) method which uses either x-rays or gamma rays to examine the internal structure of manufactured components identifying any flaws or defects. In Radiography Testing the test-part is placed between the radiation source and film (or detector).
Is digital radiography a mature method of radiography?
Apart from the developments in conventional radiography, primarily regarding X-ray equipment and films, the 2007 issue describes the now mature methods of digital radiography using radiation-sensitive plate- and panel detectors, including digitisation of traditional film.
What is the industrial radiography booklet?
The first issue of “Industrial Radiography” was published by Agfa in the sixties, for educational and promotional purposes. Some improved editions have been released since, providing information on the latest image forming radiographic techniques. The booklet has been published in a number of languages and has been very much in demand.
What is the best book on radiography testing and image processing?
Basics of Radiography Testing and Image Processing2 Basics of Radic and Image B.Venkatraman*, Uwe E ‘graphy Testing Processing M.Menaka* and *Indira Gandhi Centre for ** BAM, Berl Preconference Workshop — 18 Atomic Research , India lin,Germany WCNDT, Durban, April 14, 2012
What are the rules of taking a dental radiograph?
Two basic rules of taking dental radiographs are: 1. The central beam should pass through the area to be examined; 2. The Xrayfilm should be placed in position so as to record the image with minimal or no distortion. Using the XCP will help you follow these two rules.
