Abstract
Asbestos in all its forms is a Group 1 material agent with proven carcinogenic effects in the human being since 1977. Exposure to asbestos can be considered unsafe. The use of asbestos in the field of dentistry had a common use in the manufacture of dental prostheses in the 1960s and 1970s. Taking into account the long induction period of this agent and the plausibility for being a risk factor in dentistry, the objective of this study is to propose a plan for the prevention of occupational risks due to asbestos exposure in dentistry by means of the contribution of a panel of experts. An Expert Panel (EP) approach was used in which a group of nine experts identified and documented the use of asbestos in the dental profession. EP was created and followed the protocol in accordance with the EuropeAid Assessment Guidelines. As a result of this study, EP documented the common use and sources of asbestos in dentistry in prosthetic materials, dental dressings, and in the coating of casting cylinders. EP also created a consensus document on the priority measures for the Plan for the Prevention of Risks from Asbestos in Dentistry, based on previous reports from the European Commission Senior Labour Inspectors’ Committee. The document concluded that obtainment of information, receiving specific training on the subject and performing epidemiological studies, and the proper risk assessments were the priority measures to adopt.
Highlights
EP divided the work between three pairs of experts to address the issue from three perspectives: one trio dealt with asbestos in dentistry, another dealt with different proposed plans for prevention, and a third dealt with asbestos as a general public health problem
In the final discussion of the paper, EP concludes that the dental professional may have been exposed to asbestos material at various stages of handling the instrument and casting, such as the investment or placement of the asbestos strips on the cylinders; removal of the instrument in the cylinder; hydration of the dry asbestos; hand or Vac-U- Spat; in the removal of the cylinder and its base from the Vac-U-Spat lid; in the separation of the Vac-U-Spat shaft from the vibrating button; in the asbestos lining of the crucible (Figure 3); in the heating of the Int
The EP recognizes, with respect to the instruments kept in the museum of the Faculty of Dentistry of Granada, that the dental professional could have been exposed to asbestos material in the techniques of casting and investment of wax patterns [25], for which the three basic steps for the realization of a casting are as follows: investment of the castable wax pattern to duplicate the anatomical features and melting the wax to leave a negative on which the molten alloy will be introduced in liquid state [29]
Summary
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