Depth of cure, flexural properties and volumetric shrinkage of low and high viscosity bulk-fill giomers and resin composites

Akimasa Tsujimoto, Wayne W. Barkmeier, Toshiki Takamizawa, Mark A. Latta, Masashi Miyazaki

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The purpose of this study was to investigate the depth of cure, flexural properties and volumetric shrinkage of low and high viscosity bulk-fill giomers and resin composites. Depth of cure and flexural properties were determined according to ISO 4049, and volumetric shrinkage was measured using a dilatometer. The depths of cure of giomers were significantly lower than those of resin composites, regardless of photo polymerization times. No difference in flexural strength and modulus was found among either high or low viscosity bulk fill materials. Volumetric shrinkage of low and high viscosity bulk-fill resin composites was significantly less than low and high viscosity giomers. Depth of cure of both low and high viscosity bulk-fill materials is time dependent. Flexural strength and modulus of high viscosity or low viscosity bulk-fill giomer or resin composite materials are not different for their respective category. Resin composites exhibited less polymerization shrinkage than giomers.

Original languageEnglish (US)
Article numberdmj/2016-131
Pages (from-to)205-213
Number of pages9
JournalDental Materials Journal
Volume36
Issue number2
DOIs
StatePublished - 2017

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Dentistry(all)

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