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International Journal of Computerized Dentistry

Year 2000
Volume 3 , Issue 4

Pages: 259 - 267

Infection Control Procedures Used in Conjunction with Computed Dental Radiography

J S Hubar/D M Gardiner

Infection control guidelines for dental radiography have been modified since 1986, when the American Dental Association and the Centers for Disease Control and Prevention supported the concept of universal blood and body fluid precautions. With the introduction of computed digital radiography, hardware manufacturers recommend that the alternative infection control techniques are necessary to prevent potential damage to the digital x-ray sensors placed inside the patientís mouth. Thirty first-year dental hygiene students were asked to insert and remove a Schick CDR number 2 size intraoral digital x-ray sensor into modified Rinn XCP bitewing bite blocks and a modified Rinn Snap-a-ray five times with each of the recommended infection control covers. Reduced rates of cross contamination are possible if the plastic barrier envelope has an additional latex finger cot stretched over it and the x-ray sensor. Sole usage of a latex finger cot will result in a reduced incidence of contamination, but still not to acceptable levels. However, a plastic barrier envelope placed over the x-ray sensor and over the modified XCP bite block together or a covered sensor in a Snap-a-ray under normal conditions does not result in a perforation and is least likely to result in cross contamination.


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