The effect of curing mode of a high-power LED unit on bond strengths of dual-cure resin cements to dentin and CAD/CAM resin blocks

Kanamori, Yuna; Takahashi, Rena; Nikaido, Toru; Bamidis, Elias P.; Burrow, Michael F. und Tagami, Junji (2019): The effect of curing mode of a high-power LED unit on bond strengths of dual-cure resin cements to dentin and CAD/CAM resin blocks. In: Dental Materials Journal, Bd. 38, Nr. 6: S. 947-954

Abstract

The purpose of this study was to investigate the effects of curing mode with a high-power LED curing unit (VALO) in terms of microtensile bond strength (mu TBS) to dentin and microhardness of two dual-cure resin cements. Panavia V5 (V5) and Rely X Ultimate (RXU) were polymerized using one of three curing modes with VALO or self-cure mode to bond a CAD/CAM resin block to a flat dentin surface. Specimens were sectioned and subjected to mu TBS test. Vickers hardness values of V5 and RXU were also measured. Two-way ANOVA indicated curing mode and resin cement affected mu TBS. For self-cure mode, V5 had significantly higher mu TBS than RXU (p<0.05). Higher irradiance did not always provide higher mu TBS of dual-cure resin cement to dentin. One-way ANOVA indicated the curing modes affected microhardness of each cement. As for microhardness of RXU, there were significant differences between self-ure mode and light cure modes (p<0.05).

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 0287-4547
• Sprache: Englisch