Fracture surface examination of dental ceramics using fractal analysis.
作者： J DRUMMOND , M THOMPSON , B SUPER
DOI: 10.1016/J.DENTAL.2004.12.002
关键词:
摘要: Summary Objective The purpose of this study was to measure the fractal dimensional increment fracture surface six dental ceramics, and correlation with toughness. ceramics investigated were: a traditional porcelain (Finesse[F], Ceramco, Burlington, NJ, USA), four leucite reinforced pressable (Finesse Pressable [FP], Ceramco; Empress [E], Ivoclar; New Albany, NY, USA two shades OPC [OA2 OI40], Jeneric-Pentron, MA, lithium disilicate containing ceramic ([LD] Ceramco). Methods surfaces examined measured toughness (KIC) values are from previous [1] . An impression taken surface, poured up in epoxy, coated gold, second layer epoxy added, then polished at an angle surface. This interface (slit island) observed optical microscope imaging system which image line digitized. slit island perimeter using five different length rulers. (D*) determined Richardson technique. A experiment on three whether there between D* by alternative technique confocal microscope. Results significance Fracture well correlated either
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