Scientific article
Open access

Shining a light on high volume photocurable materials

Published inDental materials, vol. 34, no. 5, p. 695-710
Publication date2018-05
First online date2018-03-14

Spatial and temporal control is a key advantage for placement and rapid setting of light-activated resin composites. Conventionally, placement of multiple thin layers (<2mm) reduces the effect of light attenuation through highly filled and pigmented materials to increase polymerisation at the base of the restoration. However, and although light curing greater than 2mm thick layers is not an entirely new phenomenon, the desire amongst dental practitioners for even more rapid processing in deep cavities has led to the growing acceptance of so-called "bulk fill" (4-6mm thick) resin composites that are irradiated for 10-20s in daily clinical practice. The change in light transmission and attenuation during photopolymerisation are complex and related to path length, absorption properties of the photoinitiator and pigment, optical properties of the resin and filler and filler morphology. Understanding how light is transmitted through depth is therefore critical for ensuring optimal material properties at the base of thick increments. This article will briefly highlight the advent of current commercial materials that rationalise bulk filling techniques in dentistry, the relationship between light transmission and polymerisation and how optimal curing depths might be achieved.

  • Absorption
  • Bulk fill
  • Depth of cure
  • Frontal polymerization
  • Photochemistry
  • Photoinitiator
  • Photopolymerization
  • Pigment
  • Resin composite
  • Transmittance
  • Composite Resins / chemistry
  • Composite Resins / radiation effects
  • Curing Lights, Dental
  • Hardness
  • Light-Curing of Dental Adhesives
  • Materials Testing
  • Photochemical Processes
  • Polymerization
  • Surface Properties
Affiliation Not a UNIGE publication
Citation (ISO format)
PALIN, William M, LEPRINCE, Julian Grégoire, HADIS, Mohammed A. Shining a light on high volume photocurable materials. In: Dental materials, 2018, vol. 34, n° 5, p. 695–710. doi: 10.1016/j.dental.2018.02.009
Main files (1)
Article (Accepted version)
ISSN of the journal0109-5641

Technical informations

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