OXNARD, Calif., March 19, 2012 (GLOBE NEWSWIRE) -- This week, researchers at the University of Witten/Herdecke in North Rhine-Westphalia, Germany released a clinical study indicating that the sterilization protocol for dental bib holders is inconsistent and can result in the presence of germs, microorganisms and pseudomonas on bib chains and holders. The study examined a total of 30 metal and plastic bib holders and found bacteria present on more than half of them.
"The analyses of the bacterial load showed that 70 percent of all re-usable bib holders were contaminated with germs. The predominant colony types identified were staphylococci and streptococci. But on several bib chains we also found various bacterial rods, pseudomonas, fungi and other types of cocci," said the lead investigator of the study and scientific director at the University of Witten/Herdecke, professor Stefan Zimmer, M.P.H.D., Ph.D. "Although the bacteria found in this study were all non-pathogenic bacteria, in principle re-usable bib holders can cross contaminate dental patients."
The bacteria found on the bib holders in the University of Witten/Herdecke study do not usually cause disease in healthy people, but they can be a threat to immune-suppressed patients, and young children and the elderly who also often have compromised immune systems. Bacteria from an unsterilized bib holder can enter the body when a patient touches the bib holder or their neck after a dental visit, and then rubs an eye or touches their mouth. Cross-contamination can also occur:
- when a bib chain is splattered with saliva, plaque, blood and spray from the mouth.
- when a bib chain catches onto hair and accumulate with the wearer's sweat, make-up and neck acne.
- if the dental worker applies a dirty bib chain with their gloved hands before the examination or cleaning.
"Four clinical studies have demonstrated that the dental bib holder is a risk point in dental office cross contamination. Since dental teams are not adequately cleaning, disinfecting or sterilizing the bib holders, the dental community must step forward and establish a method where an aseptic product is offered to every patient as a standard practice," said Michael Durda, vice president of clinical affairs at DUX Dental headquarters in Oxnard, Calif.
Multiple Studies Show Infectious Bacteria Regularly Present on Bib Holders
Three other U.S. studies have found unacceptable levels of microbial contamination on dental bib holders, including pseudomonas, E. coli and S. aureus (the most common cause of staph infection).
In a supplement to the March 2011 issue of Dimensions of Dental Hygiene titled "Infection Control Update," Dr. John Molinari, an international expert in the areas of infection control and infectious disease in dentistry, referenced a study he conducted that looked at the presence and composition of bacterial contaminants on patient bib chains before and after patient care appointments. His results showed that microbial contamination was present on both metal and coiled plastic bib chains after use during patient care, with the highest bacteria levels found on bib chains that were not cleaned between patient uses.
Noel Kelsch, RDHAP, a Registered Dental Hygienist and former President of the California Dental Hygienists' Association, conducted a study on various types of dental chains and clips. Her findings, which were published in RDH Magazine, showed that on average dental bib chains had five times the levels of viable bacteria and fungus than the limit established by the Environmental Protection Agency (EPA) for safe drinking water (500 CFU/mL). Disposable clips and holders opened fresh for each patient, were free from contaminants and posed no cross-contamination threats.
Kelsch's findings echoed a study published by the University of North Carolina at Chapel Hill's School of Dentistry Oral Microbiology Lab that found bib chains and clips are potential sources of contamination. In sampling 50 bib clips from various hygiene and dental operations, researchers discovered one in five bib clips were contaminated with "significant microorganisms," according to Dental Health Magazine.
About DUX Dental
DUX Dental has been manufacturing and distributing the highest level of dental products worldwide for more than 50 years. Based in the coastal city of Oxnard, Calif., with additional manufacturing and distribution facilities in Europe, DUX Dental is home to a world-class team of innovators who produce and service a portfolio of hundreds of dental products and supplies. DUX Dental is well-known for its series of industry firsts including Zone Temporary Cement, Identic™ Alginate and Bib-eze™ disposable bib holders, as well as its award-winning PeelVue+ sterilization pouches. Visit www.duxdental.com or contact duxoffice(at)duxdental(dot)com for more information about DUX Dental products.
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CONTACT:Carla Vallone Poravoce PR for DUX Dental Carla.Vallone@PortavocePR.com Direct: 760-814-8194
