Faculty of Health Sciences
School of Dentistry
Division of Dental Materials
Selected Highlights from Research Findings
Research conducted in association with the University of Missouri, Kansas City USA focused on a new way to investigate the penetration of dentine bonding agents (DBA) into dentine. DBA are thin resins, which bond tooth-coloured restorative materials (composites) to enamel and dentine. In order to view the penetration of these resins into dentine, the researchers utilize an Environmental Scanning Electron Microscope (ESEM), which is a special device that allows the resin/ tooth interface to be examined at high magnification, without having to dry out (and possibly damaging) the samples, as in the case when conventional Scanning Electron Microscopes are used. The ESEM proved to be an excellent tool for the evaluation of resin/ tooth interfaces.
Navorsing in samewerking met die Universiteit van Missouri, Kansas City VSA het gefokus op 'n nuwe manier om die penetrasie van dentien bindmiddels in dentien te ondersoek. Dentien bindmiddels is dun harse, wat tandkleurige herstellingsmateriale (komposiete) aan glasuur en dentien bind. Ten einde die penetrasie van hierdie harse in dentien te ondersoek, is gebruik gemaak van 'n Omgewing-Aftas Elektronmikroskoop (ESEM), 'n spesiale toestel wat die hars/ tand kontakvlak teen hoë vergroting kan ondersoek sonder dat dit nodig is om die monsters uit te droog (en moontlik te beskadig), soos die geval is met Konvensionele Aftas Elektronmikroskope. Die ESEM is dus 'n uitstekende instrument om hars/ tand kontakvlakke te evalueer.
Contact person: Prof FA de Wet.
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