| Microbial aerosols in general dental practice. | |
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MedLine Citation:
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PMID: 11191178 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To measure the concentration of microbial aerosols in general dental practices and to use this information to carry out quantitative microbiological risk assessments. METHODOLOGY: Microbial air sampling was carried out continuously during 12 treatment sessions in 6 general dental practices in the South West of England. RESULTS: The microbial aerosol concentration in treatment rooms was generally less than 10(3) colony forming units per cubic metre of air (cfu x m(-3)). However, in 6 out of the 12 visits, at least one peak concentration with much higher numbers of bacteria was detected. The peak concentrations were associated with increased recoveries of presumptive oral streptococci suggesting these aerosols originated from the mouths of patients. These aerosol peaks dissipated within 30 minutes and no dissemination into waiting areas was detected. The peak concentrations were associated with mechanical scaling procedures (47% of procedures giving rise to a peak) and to a lesser extent by cavity preparation (11%). No aerosolised blood was detected. CONCLUSIONS: The data have been used to generate a framework for quantifying risk of exposure of staff to aerosolised microbial pathogens in general dental practice. For example, dentists and their assistants may have a slightly higher risk of exposure to Mycobacterium tuberculosis than the general public. The use of face seal masks that have been shown to protect against aerosolised micro-organisms may reduce this exposure. |
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Authors:
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A M Bennett; M R Fulford; J T Walker; D J Bradshaw; M V Martin; P D Marsh |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: British dental journal Volume: 189 ISSN: 0007-0610 ISO Abbreviation: Br Dent J Publication Date: 2000 Dec |
Date Detail:
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Created Date: 2001-01-12 Completed Date: 2001-01-25 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7513219 Medline TA: Br Dent J Country: England |
Other Details:
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Languages: eng Pagination: 664-7 Citation Subset: D; IM |
Affiliation:
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CAMR, Salisbury, Wiltshire. allan.bennett@camr.org.uk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aerosols Air Microbiology* Air Pollution, Indoor Colony Count, Microbial Dental Cavity Preparation Dental Offices* Dental Scaling Humans Infection Control, Dental* Risk Assessment Streptococcus / isolation & purification |
| Chemical | |
Reg. No./Substance:
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0/Aerosols |
| Comments/Corrections | |
Comment In:
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Br Dent J. 2001 May 26;190(10):522
[PMID:
11411882
]
Br Dent J. 2001 Mar 10;190(5):227 [PMID: 11303678 ] Br Dent J. 2001 Jul 28;191(2):63 [PMID: 11508411 ] |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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