By National Council on Radiation Protection
ISBN-10: 0929600819
ISBN-13: 9780929600819
ISBN-10: 1429479914
ISBN-13: 9781429479912
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Sample text
RADIATION PROTECTION IN DENTAL FACILITIES aware of these limitations in selecting and maintaining panoramic equipment or prescribing panoramic examinations. Otherwise, the limited diagnostic information obtained from the panoramic image may necessitate additional imaging. Periapical views alone may be adequate. Panoramic x-ray machines shall be capable of operating at exposures appropriate for high-speed (400 or greater) rare-earth screen-film systems or digital image receptors of equivalent or greater speed.
Hands are washed before and after wearing gloves. 2 WASTE MANAGEMENT / 51 infectious materials, including saliva, in dental procedures (ADA, 1996; CDC, 2003; OSHA, 2001). Either protective eyewear and masks or chin-length face shields are used during unusual radiographic procedures when splash or spatter is anticipated. Protective glasses need to have solid side-shields (ADA, 1996; CDC, 2003; OSHA, 2001). Since oral radiographic procedures generally do not result in splash or spatter, the use of these items may not be routinely required.
However, the limit applicable 30 / 3. RADIATION PROTECTION IN DENTAL FACILITIES Fig. 3. Operator exposure as a function of position in room relative to patient and primary beam. View from above for a left molar bitewing. The heavy line in the polar coordinate plot indicates dose by its distance from the center of the plot. Maximum dose is in the exit beam. The recommended positions for minimum exposures (crosses) are at 45 degrees from the exit beam. Note that most scattered radiation is backward (de Haan and van Aken, 1990).
Radiation Protection in Dentistry by National Council on Radiation Protection
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