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Occupational Injuries and Exposures Among Canadian Dentists: The Results of a National Survey

Published online by Cambridge University Press:  02 January 2015

Gillian M. McCarthy ,
John J. Koval  and
John K. MacDonald
Gillian M. McCarthy*
Affiliation:
School of Dentistry, The University of Western Ontario, London, Ontario, Canada Department of Epidemiology and Biostatistics, The University of Western Ontario, London, Ontario, Canada
John J. Koval
Affiliation:
Department of Epidemiology and Biostatistics, The University of Western Ontario, London, Ontario, Canada
John K. MacDonald
Affiliation:
School of Dentistry, The University of Western Ontario, London, Ontario, Canada Department of Epidemiology and Biostatistics, The University of Western Ontario, London, Ontario, Canada
*
Division of Oral Biology, Faculty of Medicine and Dentistry, The University of Western Ontario, London, Ontario N6A 5C1, Canada
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Abstract

Objectives:

To measure the frequency of occupational exposures reported by dentists in Canada and to identify factors associated with occupational exposure.

Design:

A national mailed survey of a stratified random sample of 6,444 dentists with three follow-up attempts. Weighted data were analyzed using t tests, analysis of variance, and multiple logistic regression.

Results:

The response rate was approximately 66%. Occupational exposures, percutaneous injuries, and mucous membrane exposures in the last year were reported by 67%, 62%, and 29% of respondents, respectively. Fewer than 1% reported exposure to human immunodeficiency virus or hepatitis B virus (HBV). Respondents reported means of 1.5 mucous membrane and 3.0 percutaneous exposures per year. HBV immunization was reported by 91% of dentists, but of these 28% reported no post-immunization serology. Other reports of suboptimal compliance included use of a postexposure protocol by only 41% and HBV vaccination of all assistants or of hygienists by 74% and 77% of respondents, respectively. Factors associated with percutaneous exposure included non-use of postexposure protocol or puncture-proof containers for sharps disposal, treating ⩾20 patients per day, and male gender. Risk factors for mucous membrane exposure included non-use of eye protection or masks.

Conclusion:

This study provides evidence of the protective effect of puncture-proof containers, eye protection, and masks and raises concerns related to HBV post-immunization serology and postexposure protocols. To reduce risk of infection, educational interventions are required to improve compliance with Universal Precautions, with emphasis on comprehensive HBV immunization and post-immunization serology, the use of barriers, puncture-proof containers for sharps disposal, and postexposure protocols.

Type
Orginal Articles
Information
Infection Control & Hospital Epidemiology , Volume 20 , Issue 5 , May 1999 , pp. 331 - 336
Copyright
Copyright © The Society for Healthcare Epidemiology of America 1999

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