Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q5259433> ?p ?o }
Showing triples 1 to 46 of
46
with 100 triples per page.
- Q5259433 subject Q7012318.
- Q5259433 subject Q8373675.
- Q5259433 subject Q8373802.
- Q5259433 abstract "Dental Radiographs are commonly called x-rays. Dentists use radiographs for many reasons: to find hidden dental structures, malignant or benign masses, bone loss, and cavities.A radiographic image is formed by a controlled burst of X-ray radiation which penetrates oral structures at different levels, depending on varying anatomical densities, before striking the film or sensor. Teeth appear lighter because less radiation penetrates them to reach the film. Dental caries, infections and other changes in the bone density, and the periodontal ligament, appear darker because X-rays readily penetrate these less dense structures. Dental restorations (fillings, crowns) may appear lighter or darker, depending on the density of the material.The dosage of X-ray radiation received by a dental patient is typically small (around 0.150 mSv for a full mouth series, according to the American Dental Association website), equivalent to a few days' worth of background environmental radiation exposure, or similar to the dose received during a cross-country airplane flight (concentrated into one short burst aimed at a small area). Incidental exposure is further reduced by the use of a lead shield, lead apron, sometimes with a lead thyroid collar. Technician exposure is reduced by stepping out of the room, or behind adequate shielding material, when the X-ray source is activated.Once photographic film has been exposed to X-ray radiation, it needs to be developed, traditionally using a process where the film is exposed to a series of chemicals in a dark room, as the films are sensitive to normal light. This can be a time-consuming process, and incorrect exposures or mistakes in the development process can necessitate retakes, exposing the patient to additional radiation. Digital x-rays, which replace the film with an electronic sensor, address some of these issues, and are becoming widely used in dentistry as the technology evolves. They may require less radiation and are processed much more quickly than conventional radiographic films, often instantly viewable on a computer. However digital sensors are extremely costly and have historically had poor resolution, though this is much improved in modern sensors.It is possible for both tooth decay and periodontal disease to be missed during a clinical exam, and radiographic evaluation of the dental and periodontal tissues is a critical segment of the comprehensive oral examination. The photographic montage at right depicts a situation in which extensive decay had been overlooked by a number of dentists prior to radiographic evaluation".
- Q5259433 thumbnail ToothMontage3.jpg?width=300.
- Q5259433 wikiPageExternalLink FAQ.
- Q5259433 wikiPageExternalLink digital-radiography.
- Q5259433 wikiPageWikiLink Q1002512.
- Q5259433 wikiPageWikiLink Q103246.
- Q5259433 wikiPageWikiLink Q1059765.
- Q5259433 wikiPageWikiLink Q1225030.
- Q5259433 wikiPageWikiLink Q133772.
- Q5259433 wikiPageWikiLink Q155925.
- Q5259433 wikiPageWikiLink Q1584160.
- Q5259433 wikiPageWikiLink Q1627831.
- Q5259433 wikiPageWikiLink Q172605.
- Q5259433 wikiPageWikiLink Q182895.
- Q5259433 wikiPageWikiLink Q189218.
- Q5259433 wikiPageWikiLink Q210521.
- Q5259433 wikiPageWikiLink Q245341.
- Q5259433 wikiPageWikiLink Q34777.
- Q5259433 wikiPageWikiLink Q448692.
- Q5259433 wikiPageWikiLink Q4730615.
- Q5259433 wikiPageWikiLink Q5058675.
- Q5259433 wikiPageWikiLink Q5063292.
- Q5259433 wikiPageWikiLink Q5283631.
- Q5259433 wikiPageWikiLink Q540092.
- Q5259433 wikiPageWikiLink Q5428968.
- Q5259433 wikiPageWikiLink Q542946.
- Q5259433 wikiPageWikiLink Q6293.
- Q5259433 wikiPageWikiLink Q691640.
- Q5259433 wikiPageWikiLink Q691653.
- Q5259433 wikiPageWikiLink Q7012318.
- Q5259433 wikiPageWikiLink Q7208.
- Q5259433 wikiPageWikiLink Q743868.
- Q5259433 wikiPageWikiLink Q7929187.
- Q5259433 wikiPageWikiLink Q8373675.
- Q5259433 wikiPageWikiLink Q8373802.
- Q5259433 wikiPageWikiLink Q839483.
- Q5259433 wikiPageWikiLink Q841267.
- Q5259433 wikiPageWikiLink Q905815.
- Q5259433 wikiPageWikiLink Q9212.
- Q5259433 wikiPageWikiLink Q938196.
- Q5259433 comment "Dental Radiographs are commonly called x-rays. Dentists use radiographs for many reasons: to find hidden dental structures, malignant or benign masses, bone loss, and cavities.A radiographic image is formed by a controlled burst of X-ray radiation which penetrates oral structures at different levels, depending on varying anatomical densities, before striking the film or sensor. Teeth appear lighter because less radiation penetrates them to reach the film.".
- Q5259433 label "Dental radiography".
- Q5259433 depiction ToothMontage3.jpg.