Personal exposure measurement during dental nanocomposite grinding

0557156 - ÚCHP 2023 RIV CZ eng C - Conference Paper (international conference)
Ždímal, Vladimír - Ondráčková, Lucie - Ondráček, Jakub - Schwarz, Jaroslav - Bradna, P. - Roubíčková, A. - Pelclová, D. - Rössnerová, Andrea
Personal exposure measurement during dental nanocomposite grinding.
Program a abstrakty konference s mezinárodní účastí Genetická toxikologie a prevence rakoviny. Hlučín: Anna Vavrušová - Alisa Group, 2022, s. 41-42. ISBN 978-80-88038-10-8.
[Konference s mezinárodní účastí Genetická toxikologie a prevence rakoviny. Telč (CZ), 02.05.2022-05.05.2022]
R&D Projects: GA ČR(CZ) GA18-02079S; GA ČR(CZ) GA22-08358S
Institutional support: RVO:67985858 ; RVO:68378041
Keywords : dental treatment * personal exposure * nanocomposites
OECD category: Occupational health; Public and environmental health (UEM-P)

The purpose of this study was to measure the personal exposure of each participant of the study and to compare the results with those of static monitoring. Personal nanoparticle sam-plers (PENS), which can simultaneously detect both nanoparticles (PM0.1) and respirable parti-cles (PMA), were used to determine personal exposure (Tsai et al., 2012). Area monitoring in-cluded measurement of mass concentrations using the Berner Low Pressure Impactor (BLPI 25/0.018 /2, Hauke GmbH, Gmunden, Austria) and the Low Volume Sampler (LV5, Sven Leckel Ingenieurbüro GmbH, Germany). The number concentrations and their size distributions were measured with the Scanning Mobility Particle Sizer (5MP5 3936, T5I Inc., USA) and the Aerody-namic Particle Sizer (APS 3321, TSI Inc., USA). Measurements with all of the above- mentioned instruments were performed in four shifts with six participants per shift. Each participant milled for 10 minutes and then remained in the room until the group finished the session, so the total exposure lasted about 70 minutes. Due to the high content of filler nanoparticles, the nanocom-posite Filtek Ultimate (body A2, 3M ESPE, USA) was selected for these measurements.
Permanent Link: http://hdl.handle.net/11104/0331219