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The effect of decontamination procedures on elastic polymeric materials used in dental mouthguards fabrication

Mańka-Malara Katarzyna, Panasiewicz APaulina, Kacprzyk Milena, Gawryszewska Monika, Mierzwińska-Nastalska Elżbieta, Gawlak Dominika

Acta of Bioengineering and Biomechanics

2019

Vol. 21, no. 4

63--71

Mouthguards are commonly used in the prevention of head and mouth injuries in many sport disciplines. Elastic polymeric materials used in their fabrication absorb the energy of impact. However, decontamination procedures may cause damage to their surface causing deterioration of their properties and favouring pathogen colonization. The aim of the study was to determine the impact of different cleaning methods on mouthguard materials, surface quality. Methods: The material for the research consisted of 81 samples made from polymeric materials used for custom mouthguard fabrication – Impak, Corflex Orthodontic and Erkoflex. Samples were viewed under a scanning electron microscope after exposure to different cleaning methods. Results: Statistical analysis of tested decontamination procedures and disinfecting agents showed statistically important ( p < 0.05) results for the presence of small and big separated pieces, grooves and holes. Out of all the cases the lowest indicator for occurrence was in the disinfecting spray – Aftermat. Conclusions: Considering the importance of the surface material of the mouthguard, disinfection should be the method of choice for maintaining its hygiene. Impak material samples, cleaned with the Aftermat spray, showed the lowest range of damage.

Evaluating the Potential Occupational Hazard of Handling Dental Polymer Products Using the HET-CAM Technique

Lonnroth E. C., Dahl J. E., Shahnavaz H.

International Journal of Occupational Safety and Ergonomics

1999

Vol. 5, No. 1

43--57

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.