Evaluating the potential occupational hazard of handling dental polymer products using the HET-CAM technique.
The irritation potencies of 8 dental polymer products, used as dental restorative materials, adhesives, or temporary constructions, were tested using the HET-CAM (hen's egg test-chorioallantoic membrane) technique. Liquid and powder components, and extracts of cured and freshly mixed non-cured materials of 5 glass ionomers, 1 bonding, 1 composite, and 1 cold-cured acrylate were examined. Results showed that the liquid component of all products had a strong irritation capacity but powder suspensions and extracts from cured and freshly mixed non-cured materials had no effect on the CAM. Thus, dental personnel who handle liquid and powder manually are exposed to components with a high irritation potential, in contrast to patients who are exposed to the cured and mixed non-cured materials with low irritation potential. This illustrates the importance of safe handling procedures and practices for dental personnel who handle non-cured polymers manually.
Lönnroth
E C
EC
Department of Human Work Sciences, Luleå University of Technology, Sweden. emma@arb.luth.se.
Dahl
J E
JE
Shahnavaz
H
H
D000818:Animals; D001681:Biological Assay; D002642:Chick Embryo; D002823:Chorion / Q000187:drug effects; D003764:Dental Materials / Q000009:adverse effects*; D004531:Eggs; D006801:Humans; D007509:Irritants / Q000009:adverse effects; D016273:Occupational Exposure; D011208:Powders; D013048:Specimen Handling
D003764:Dental Materials; D007509:Irritants; D011208:Powders