Dental tribology at the microscale

Dental wear caused by tooth care is a complex phenomenon that depends on the quality of the tooth material, the type of toothbrush and the brushing slurry. Tooth wear is commonly determined in abrasion experiments using a standardized toothbrush in contact with a radioactively labeled dentin sample...

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Veröffentlicht in:Wear 2013-01, Vol.297 (1-2), p.1040-1044
Hauptverfasser: Scherge, Matthias, Sarembe, Sandra, Kiesow, Andreas, Petzold, Matthias
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container_issue 1-2
container_start_page 1040
container_title Wear
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creator Scherge, Matthias
Sarembe, Sandra
Kiesow, Andreas
Petzold, Matthias
description Dental wear caused by tooth care is a complex phenomenon that depends on the quality of the tooth material, the type of toothbrush and the brushing slurry. Tooth wear is commonly determined in abrasion experiments using a standardized toothbrush in contact with a radioactively labeled dentin sample (RDA method). The increase of radioactivity in the slurry is a direct and highly-sensitive indicator for wear. It is, however, detrimental that RDA provides an integral view of the tribological processes leaving microscopic issues undetected. Therefore, in this contribution the macroscopic system of brush versus tooth was reduced to a microtribological setup analyzing the contact between a single bristle (monofilament) and a tooth sample. This setup allowed to correlate friction and wear events to topography and structure of the tooth and will enable the evaluation of cleaning processes microscopically in the future. In addition, results of this work were related to the literature results of RDA experiments. ► Aim of this study was to analyze friction and wear on human enamel during cleaning. ► The system was successfully reduced to the contact of a toothbrush filament and enamel. ► The setup allows to correlate friction and wear effects with topography changes on enamel. ► The setup is able to provide information on abrasion properties of toothpastes. ► Friction and wear are induced by the trapping of toothpaste particles during sliding.
doi_str_mv 10.1016/j.wear.2012.11.066
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source Elsevier ScienceDirect Journals
subjects Abrasion
Abrasion resistance
Biological and medical sciences
Contact
Dental analysis
Dental materials
Friction
Medical sciences
Microtribology
Radioactivity
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
Slurries
Technology. Biomaterials. Equipments. Material. Instrumentation
Teeth
Toothbrushes
Tribology
Wear
title Dental tribology at the microscale
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