Effect of base monomer's refractive index on curing depth and polymerization conversion of photo-cured resin composites

Kou Fujita, Norihiro Nishiyama, Kimiya Nemoto, Tamami Okada, Takuji Ikemi

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)

Abstract

In this study, we examined the effect of the transmitted amount of visible light through a resin composite on the curing depth and polymerization conversion. Transmitted amount of visible light was strongly dependent on the magnitude of refractive index difference that existed between the resin and silica filler. More specifically, the differences arose from the type of base monomer used. The transmitted amount of visible light exhibited a good correlation with the curing depth and Knoop hardness ratio of the bottom surface against the top surface of the resin composite. To improve the polymerization conversion of the cavity floor, it is important to reduce the refractive index difference that exists between the base resin and silica filler.

Original languageEnglish
Pages (from-to)403-408
Number of pages6
JournalDental Materials Journal
Volume24
Issue number3
DOIs
Publication statusPublished - Sept 2005

Keywords

  • Curing depth
  • Photo-cured resin composite
  • Transmittance

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