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. 1999 May;15(3):180-4.
doi: 10.1016/s0109-5641(99)00030-5.

In vitro abrasion using an air-powder polishing device and its quantification by radiotracer measurement

C H Finke  1 , R J Radlanski, D Gawlik, P Brätter, W Gatschke, H H Rabe, B Arens, S Williams
Affiliations

In vitro abrasion using an air-powder polishing device and its quantification by radiotracer measurement

C H Finke et al. Dent Mater. 1999 May.

Erratum in

  • Dent Mater 1999 Nov;15(6):456

Abstract

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.

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