Resin bonded Fibre Reinforced Composite Bridges Flashcards Preview

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Flashcards in Resin bonded Fibre Reinforced Composite Bridges Deck (6)
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1
Q

What are Resin bonded fibre reinforced composite bridges? (Resin bonded FRC’s)?

A

Similar to resin bonded alloy bridges, but use a fibre reinforced composite backing instead

Generally not used as often and more of a short/medium term restoration

*Do not go beyond two pontics

2
Q

What types of FRC’s are available as a backing?

A

Kevlar
Carbon Fibre
Polyethylene fibre
Quartz fibre

3
Q

What provides the strength in FRC’s?

A
  • Volume of fibres
  • Individual fibre strength
  • Strength of resin matrix
4
Q

What are the properties of Sinfony re.

  • Material type
  • Curing
  • Filler content
  • Filler type
  • Resin matrix composition
  • Water uptake
  • Aesthetics (good or bad)
A
  • Resin type material
  • Light cured
  • 50% filler content by weight
  • Silica filler
  • Aliphatic and cycloaliphatic monomers (not HEMA/TEGDMA based)
  • Low water uptake
  • Good astehtics
5
Q

How is Sinfony fabricated?

A
  • Constructed on die via layering technique (opaque, dentine, enamel pastes)
  • Initial layers snap light cured using Vsio-Alfa Unit
  • Final vacuum firing via Visio Beta Vario Unit + Light
  • Rocatec used used to facilitate adhesion to metal surface if alloy subframe used
6
Q

What are some limitations to indirect resin composite restorations?

A
  • Long term durability and clinical performance unknown
  • Loss of shine
  • marginal staining/plaque accumulation
  • Higher immediate cost
  • Composite inlays reported to be inferrior to ceramic inlays in terms of longevity?