Assessing viral retention and elimination in rotary dental instruments
Article Abstract:
Wiping dental handpieces with a disinfectant and flushing disinfectant through the internal lines appears to significantly reduce the chances of herpes simplex virus (HSV) transmission. HSV may be transmitted from non-sterilized instruments to dental personnel or to other patients. To determine the degree of HSV contamination and the effectiveness of disinfection, anti-retraction valves were added to dental handpieces and the internal lines were flushed with either a disinfectant (glutaraldehyde) or saline. Five dental handpieces were exposed to HSV in a controlled laboratory setting. All handpieces still had HSV growth when left untreated. Some virus growth remained when the instruments were wiped with disinfectant and their lines flushed with saline. Viruses vanished only when all surfaces were wiped with disinfectant and alcohol and the internal lines were flushed with glutaraldehyde disinfectant. There was no apparent benefit from having added the anti-retraction valves.
Publication Name: Journal of the American Dental Association
Subject: Health
ISSN: 0002-8177
Year: 1995
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Infection control recommendations for the dental office and the dental laboratory
Article Abstract:
The American Dental Association makes recommendations for infection control in dental offices and laboratories. Recommendations are based on the recommendations of the Centers for Disease Control and Prevention and other publications. Dental health care workers should be vaccinated against hepatitis B. Infection control procedures should be used with all patients. Detailed recommendations are made about the following: barrier techniques, including gloves, clothing, masks or face shields, and eyewear; techniques to limit contamination via droplets or spatter; handwashing; handling of needles and sharp instruments; handling and sterilization or disinfection of instruments, equipment, surfaces, and materials such as X-ray films and molds that go in the patient's mouth; and disposal of waste materials. Detailed recommendations are also made for handling materials and disposal of waste in dental laboratories.
Publication Name: Journal of the American Dental Association
Subject: Health
ISSN: 0002-8177
Year: 1996
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Dental unit waterlines: approaching the year 2000
Article Abstract:
Biofilm is a layer of microorganisms that form inside the tubing used in dental waterlines. This happens because all water contains microorganisms to a certain extent. Although biofilm is relatively stable, microorganisms can slough off and be carried through the water. These microorganisms are not generally hazardous for most people, but they can be for people with weakened immune systems. Products to prevent biofilm include independent water systems that are separate from municipal supplies, chemical treatment, filters, and sterile water delivery systems.
Publication Name: Journal of the American Dental Association
Subject: Health
ISSN: 0002-8177
Year: 1999
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