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Subsurface damage induced in dental resurfacing of a feldspar porcelain with coarse diamond burs

, und . Journal of Biomechanics, (2009)

Zusammenfassung

The primarycauseforearlyfailureofceramicrestorationsissurfaceandsubsurfacedamageinducedin adjustmentandresurfacingusingdentalhandpieces/burs.Thispaperreportsfiniteelementanalysis (FEA)modellingofdentalresurfacingtopredictthedegreesofsubsurfacedamage,incombinationwith experimentalmeasurementusingscanningelectronmicroscopy(SEM).TheFEApredictionsof subsurfacedamageinducedinafeldsparporcelainwithcoarsediamondburswereinagreementwith the SEMexperimentalmeasurement.Thesefindingsprovidedentalcliniciansaquantitativedescription of theresponseofdentalresurfacing-inducedsubsurfacedamage.Theimplicationoftheresultsfor non-destructiveevaluationofsubsurfacedamagebyFEAmodellingwillbepracticallymeaningfulto clinicaldentalrestorationsforhigh-qualityceramicrestorations.

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