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Prions and the oral cavity.

A J Smith1, J Bagg, J W Ironside

  • 1Infection Research Group, Glasgow Dental Hospital & School, 378 Sauchiehall Street, Glasgow G2 3JZ, Scotland, UK. a.smith@dental.gla.ac.uk

Journal of Dental Research
|September 30, 2003
PubMed
Summary

Prion diseases, like variant Creutzfeldt-Jakob disease (vCJD), pose risks in dentistry due to resistant proteins. Understanding prion distribution in oral tissues is crucial for safe dental practices.

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Dental Medicine

Background:

  • Prion diseases, including variant Creutzfeldt-Jakob disease (vCJD), present a significant risk to healthcare workers.
  • Abnormal prion proteins are highly resistant to standard sterilization methods.
  • vCJD, linked to contaminated food, shows infectivity beyond the central nervous system.

Purpose of the Study:

  • To review the nature of prions.
  • To examine prion distribution within oral tissues.
  • To assess the implications for dental treatment and patient safety.

Main Methods:

  • Literature review of prion disease characteristics.
  • Analysis of studies on prion presence in oral tissues.
  • Evaluation of sterilization efficacy against prions.

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Main Results:

  • Prions are resistant to conventional sterilization, posing a risk in dental settings.
  • Significant prion infectivity exists outside the central nervous system, including oral tissues.
  • Asymptomatic individuals may transmit prion diseases during dental procedures.

Conclusions:

  • Dental professionals must be aware of prion disease transmission risks.
  • Current sterilization protocols may be insufficient for prion inactivation.
  • Further research is needed to develop effective decontamination strategies for dental instruments.