Contamination by hepatitis B surface antigen in dental surgeries.

Piazza, Marcello; Guadagnino, Vincenzo; Picciotto, L; Borgia, Guglielmo; Nappa, Salvatore

doi:10.1136/bmj.295.6596.473

Cited by 21 publications

(10 citation statements)

References 5 publications

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“…Among the environment isolates, one came from a headlight, one from an air/water syringe, two from high-speed drills and one from a low-speed drill. Although data on microbial contamination of surfaces or instruments from dental clinics are scarce, available research results have shown their extensive contamination by hepatitis B surface antigen (20) and hepatitis C virus (21); additional results have shown a high degree of contamination of trolley surfaces with Staphylococcus aureus and β haemolytic Streptococcus (16).…”

Section: Resultsmentioning

confidence: 99%

Isolation of Pseudomonas aeruginosa strains from dental office environments and units in Barretos, state of São Paulo, Brazil, and analysis of their susceptibility to antimicrobial drugs

Oliveira¹,

Maluta²,

Stella³

et al. 2008

Braz. J. Microbiol.

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A wide variety of opportunistic pathogens has been detected in the tubing supplying water to odontological equipment, in special in the biofilm lining of these tubes. Among these pathogens, Pseudomonas aeruginosa, one of the leading causes of nosocomial infections, is frequently found in water lines supplying dental units. In the present work, 160 samples of water, and 200 fomite samples from forty dental units were collected in the city of Barretos, State of São Paulo, Brazil and evaluated between January and July, 2005. Seventy-six P. aeruginosa strains, isolated from the dental environment (5 strains) and water system (71 strains), were tested for susceptibility to six antimicrobial drugs most frequently used against P. aeruginosa infections. Susceptibility to ciprofloxacin, followed by meropenem was the predominant profile. The need for effective means of reducing the microbial burden within dental unit water lines is emphasized, and the risk of exposure and cross-infection in dental practice, in special when caused by opportunistic pathogens like P. aeruginosa, are highlighted.

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Section: Resultsmentioning

confidence: 99%

Isolation of Pseudomonas aeruginosa strains from dental office environments and units in Barretos, state of São Paulo, Brazil, and analysis of their susceptibility to antimicrobial drugs

Oliveira¹,

Maluta²,

Stella³

et al. 2008

Braz. J. Microbiol.

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“…Some research has shown extensive contamination of surfaces and instruments in dental surgeries by hepatitis B surface antigen,22 and hepatitis C virus (HCV),23 but current publications do not contain any data on bacterial contamination.…”

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confidence: 99%

Evaluation of environmental bacterial contamination and procedures to control cross infection in a sample of Italian dental surgeries

Monarca

2000

Occup Environ Med

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Objectives-To perform a pilot study on bacterial contamination in some dental surgeries (n=51) in a local health unit in Brescia (Lombardy Region, Italy) and to evaluate the procedures to control cross infection used by the personnel to reduce the risk of infection in dental practice. Methods-A survey was carried out by interviewing 133 dental personnel with a questionnaire on the procedures used to control infection. The autoclaves, chemical baths (chemiclaves), and ovens present in the surgeries were tested for sterilisation eYciency with a spore test, and already packed and sterilised instruments were randomly sampled and tested for sterility. Microbial contamination of air, surface, and dental unit water samples were also studied. Results-The dental personnel did not generally follow the principal procedures for infection control: 30% of personnel were not vaccinated against hepatitis B virus, infected instruments were often not decontaminated, periodic checks of autoclave eYciency were lacking, and the knowledge of disinfection mechanisms and procedures was incomplete. High bacteriological contamination of water at dental surgeries was often found and total bacteriological counts in air samples were high. Surface studies showed widespread bacterial contamination. Conclusions-On the basis of these results, an educational programme for the prevention of infective hazards has been prepared and carried out. The results of this pilot study will be used for planning a national survey. (Occup Environ Med 2000;57:721-726)

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“…33 The HBV is capable of surviving on envi¬ ronmental surfaces for at least one week.333 In a recent study that sampled dental surgery environ¬ mental surfaces, HBsAg was found not only on surgical instruments, but also on dental chair head¬ rests, armrests, and surgeons' workbenches. 33 Many dermatologists perform a substantial num¬ ber of simple surgical procedures in patient exami¬ nation rooms apart from their designated minor surgery or procedure rooms. The physician and his or her staff should keep the above facts in mind when implementing measures of asepsis, decontamination, disinfection, and sterilization of instruments and environmental surfaces.…”

Section: Equipment Contamination and Instrument Sterilizationmentioning

confidence: 99%

Prevention of Hepatitis B

Bastien

Smith²

1989

Arch Dermatol

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Hepatitis B is now the most commonly reported hepatitis in the United States and the physician's greatest infectious occupational hazard. Although dermatologists are at increased risk for contracting and transmitting hepatitis B virus, surveys continue to indicate that a substantial number do little to decrease this risk. We have summarized the recent developments regarding the transmission, diagnosis, and clinical presentation and course of hepatitis B virus infection, and have offered specific preventive measures to assist the dermatologist in keeping hepatitis B out of his medical practice. By employing these measures, dermatologists can do their part in contributing to the future eradication of this disease.

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Contamination by hepatitis B surface antigen in dental surgeries.

Abstract: 4 Ross GD, Thompson RA, Walport MJ, et al. Characterization of patients with an increased susceptibility to bacterial infections, and a genetic deficiency of leukocyte membrane complement receptor type 3 and the related membrane antigen LFA-1. Blood 1985;66:882-90.

Cited by 21 publications

References 5 publications

Isolation of Pseudomonas aeruginosa strains from dental office environments and units in Barretos, state of São Paulo, Brazil, and analysis of their susceptibility to antimicrobial drugs

Isolation of Pseudomonas aeruginosa strains from dental office environments and units in Barretos, state of São Paulo, Brazil, and analysis of their susceptibility to antimicrobial drugs

Evaluation of environmental bacterial contamination and procedures to control cross infection in a sample of Italian dental surgeries

Prevention of Hepatitis B

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