Comparative evaluation of the sensitometric properties of screen-film systems and conventional dental receptors for intraoral radiography
This investigation determined the sensitometric properties of 27 rare-earth screen-film combinations and compared them to E- and D-speed films and xeroradiography, the current standards for intraoral radiography. A series of exposures from base plus fog to film saturation were made to determine the Hurter and Driffield curve of each image receptor. The base plus fog, film saturation, speed, gamma, average gradient, and resolution were determined. When dental receptors and screen-film systems are compared on the basis of radiographic quality (contrast and resolution), many screen-film systems have similar resolution (greater than 10 line pairs/mm), significantly greater contrast (greater than 2.0), and a substantial speed advantage (greater than 10). Thus selected screen-film systems may be an alternative to conventional dental receptors for intraoral radiography.
- OSTI ID:
- 5033862
- Journal Information:
- Oral Surgery, Oral Medicine, Oral Pathology; (USA), Vol. 68:6; ISSN 0030-4220
- Country of Publication:
- United States
- Language:
- English
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BIOMEDICAL RADIOGRAPHY
IMAGE INTENSIFIERS
ORAL CAVITY
COMPARATIVE EVALUATIONS
DENTISTRY
QUALITY CONTROL
RADIATION DOSES
X RADIATION
CONTROL
DIAGNOSTIC TECHNIQUES
DIGESTIVE SYSTEM
DOSES
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
MEDICINE
NUCLEAR MEDICINE
RADIATIONS
RADIOLOGY
550602* - Medicine- External Radiation in Diagnostics- (1980-)