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Staphylococci from dental personnel.

M L Pereira1, L S do Carmo, M Q Souki

  • 1Fundação Ezequiel Dias, Belo Horizonte, MG, Brasil. funed@rodemge.gov.br/malu@ez-bh.com.br

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Dental professionals can carry staphylococci, including Staphylococcus aureus, on their hands and in their respiratory tracts. Some strains produce enterotoxins, highlighting the need for strict hygiene to prevent patient contamination, especially during surgical procedures.

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Dental Public Health

Background:

  • Staphylococci are common bacteria found on human skin and mucous membranes.
  • Certain strains, like Staphylococcus aureus, can cause infections and produce toxins.
  • Dental professionals are in close contact with patients, posing a risk of pathogen transmission.

Purpose of the Study:

  • To investigate the prevalence of staphylococcal colonization in dental students and professors.
  • To identify the types of staphylococci present, including Staphylococcus aureus.
  • To assess the potential for enterotoxin-producing strains among dental healthcare workers.

Main Methods:

  • Bacteriological culturing of nares, throat, and hands.
  • Identification and classification of staphylococcal isolates.
  • Testing for enterotoxin production by Staphylococcus aureus strains.

Main Results:

  • Staphylococci were detected in a high percentage of dental students and professors.
  • Staphylococcus aureus was the predominant species identified.
  • A significant proportion of colonized individuals carried enterotoxin-producing strains.

Conclusions:

  • Dental students and professors harbor staphylococci, including pathogenic Staphylococcus aureus.
  • The presence of enterotoxin-producing strains necessitates stringent infection control measures.
  • Enhanced hygiene protocols are crucial to prevent patient contamination in dental settings, particularly during invasive procedures.