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Pilot study of contact sensitization to rubber allergens and bisphenol A amongst dental students

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Lyapina M. G., Krasteva A., Dencheva M., Tzekova M., Nikolov G., Yaneva-Deliverska M., Kisselova-Yaneva A.
International Journal of Occupational Medicine and Environmental Health
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2017
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vol. 30
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issue 3
397-405
EN
Objectives The aim of this study has been to evaluate the rate of contact sensitization to some rubber allergens and to bisphenol A (BPA) amongst students of dental medicine and dental patients. Material and Methods A total of 50 participants were included in the study: 40 students of dental medicine exposed to the studied rubber allergens and BPA-based dental materials during the course of their education; 10 dental patients without occupational exposure to the latter substances served as a control group. All of them were patch-tested with the studied rubber allergens and bisphenol A. Results Highest was the sensitizing action of carba mix, followed by benzoyl peroxide and mercapto mix. The sensitization rate for carba mix was significantly higher for dental students as well as for the whole studied population, if compared to the one for thiuram mix (Chi² = 12.9, p < 0.001; Chi² = 13.9, p < 0.001), bisphenol A (Chi² = 8.9, p < 0.001; Chi² = 11.9, p < 0.001), toluenesulfonamide formaldehyde resin (Chi² = 10.7, p < 0.001; Chi² = 13.9, p < 0.001) and benzoyl peroxide (Chi² = 4.7, p = 0.03; Chi² = 5.8, p = 0.016), and for dental patients, if compared to the one for mercapto mix (Chi² = 7.07, p = 0.008). Concomitant positive skin patch-test reactions to carba mix and to benzoyl peroxide, and to all the studied allergens were established. Conclusions Carba mix could be outlined as a sensitizer of paramount importance for dental students as well as for dental patients. Benzoyl peroxide was the second ranked sensitizer for dental students. Positive skin patch-test reactions to bisphenol A and toluenesulfonamide formaldehyde resin were established only among the group of dental students. Int J Occup Med Environ Health 2017;30(3):397–405
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Dental environmental stress during the COVID‑19 pandemic at the Jagiellonian University Medical College, Kraków, Poland

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Zarzecka J., Zarzecka-Francica E., Gala A., Gębczyński K., Pihut M.
International Journal of Occupational Medicine and Environmental Health
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2021
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vol. 34
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issue 2
211-222
EN
ObjectivesThe burden of stress experienced by dentistry students has been the subject of numerous studies aimed at defining the strongest stressors, and at reducing their intensity to improve the conditions and, consequently, the quality of education. Such studies have never been performed in the conditions of a pandemic caused by a new, unknown coronavirus. Therefore, the objective of the study was to identify the sources of their stress in the course of the studies, with reference to the COVID‑19 pandemic.Material and MethodsA total of 334 dentistry students of the Institute of Dentistry at the Jagiellonian University Medical College were invited to take part in the study. They represented a range from the first to the fifth year of studies in the 2019/2020 academic year. The tool employed in the study was the Dental Environmental Stress (DES) questionnaire and 11 supplementary questions related to the pandemic. The study was carried out on June 1–25, 2020.ResultsThe participation rate was 72%. Academic work presented the highest level of stress. A comparison of the overall levels of stress in particular domains as well as questions included in the DES survey revealed significant differences between students of individual years of studies in the 2019/2020 academic year. The strongest positive relationships between the supplementary questions and the DES domains appeared in the area of clinical factors. These concerned returning to clinical classes and contact with patients with regard to SARS-CoV-2 (rs = 0.50, p < 0.001), contact with patients in connection with SARS-CoV-2 (rs = 0.47, p < 0.001), and a lack of practical classes with patients in connection with the COVID‑19 pandemic (rs = 0.42, p < 0.001).ConclusionsDentistry students were subjected to stress resulting from a conflict between the perceived risk of returning to clinical classes and contact with patients due to SARS-CoV-2, and disruptions in the course of clinical education, which they perceived negatively.
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