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Journal of Dental Research
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CRITICAL REVIEWS IN ORAL BIOLOGY & MEDICINE

Implications for Creutzfeldt-Jakob Disease (CJD) in Dentistry: a Review of Current Knowledge

J.T. Walker1,*, J. Dickinson1, J.M. Sutton1, P.D. Marsh1,2 and N.D.H. Raven1

1 TSE Research Group, Centre for Emergency Preparedness and Response, HPA, Porton Down, Salisbury SP4 0JG, UK; and
2 Leeds Dental Institute, Leeds, LS2 9LU, UK

Correspondence: * corresponding author, jimmy.walker{at}hpa.org.uk

This review explores our current understanding of the risks of (variant) Creutzfeldt-Jakob disease transmission via dental practice, and whether they merit the rigorous enforcement of improved standards of instrument cleaning and decontamination. The recognition of prions as novel infectious agents in humans has caused significant concern among the public and medical professionals alike. Creutzfeldt-Jakob disease (CJD) in humans has been shown to be transmissible via several routes, including transplantation, contaminated medical products, and via neurosurgery. While the likelihood of transmission via dentistry is undoubtedly very low, this may be amplified considerably by unknown risk factors, such as disease prevalence (particularly in the UK), altered tissue distribution of vCJD, and the failure of decontamination processes to address the inactivation of prions adequately. Since current diagnostic techniques are unable to detect PrPSc in human dental tissues, there is limited evidence for the presence of infectivity. Given these uncertainties, the control of risk by reinforced and improved decontamination practices seems the most appropriate response.

Key Words: cross-infection • infection control • vCJD • dentistry • decontamination • prion • TSE • dental instruments

Journal of Dental Research, Vol. 87, No. 6, 511-519 (2008)
DOI: 10.1177/154405910808700613
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