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Updated: Aug 8, 2026
Experimental Protocol to Investigate Particle Aerosolization of a Product Under Abrasion and Under Environmental Weathering
Published on: September 16, 2016
In vitro abrasion using an air-powder polishing device and its quantification by radiotracer measurement
C H Finke1, R J Radlanski, D Gawlik
1Humboldt University, Department of Pediatric Dentistry, Berlin, Germany. christian.finke@charite.de
Objectives:
This study was conducted to examine the assessment of abrasion of two different materials after neutron activation.
Methods:
A fissure sealant material (Fissurit F/VOCO with a compressive strength of 235 MPa) and a glass ionomer cement (Aqua Ionofil/VOCO with a compressive strength of 170 MPa) were activated by irradiation with neutrons. Subsequent measurements of the full-energy-peak (FEP) (1368.55 keV of 24Na) were made of the sample materials before and after abrasion via exposure to the air-powder polishing to accurately describe substance loss.
Results:
Abrasion varied more than three-fold between the two materials.
Significance:
Neutron activation and radiotracer measurement allows the quantification of abrasion effects in different materials. In comparison with other current methods its use may allow a superior measurement accuracy and precision in determining the abraded mass.
