Sarah Chua K X
Dental Materials
DIRECT TOOTH-COLOURED RESTORATIVE MATERIALS
Property
Composition
Glass Ionomer Cements
Ion-leachable glass
Water-soluble polyacids
Water
Resin-Modified GIC
Ion-leachable glass
Water-soluble polyacids (may
be methacrylate modified)
Methacrylate monomers
Water
Photoinitiators
Setting
Acid-base reaction
Curing
Mixing
Auto-cure
2-component system
Mixing required
Acid-base reaction + free
radical polymerization
Auto/resin/light cure
2-component system
Mixing required
Fluoride release
Adhesion to
tooth
Esthetics
Physical
properties
Handling
properties
Ease of use
High
Ionic bonding
Micromechanical
Opaque
Good
Moderate-high
Ionic bonding
Micromechanical
Good
Good
Moderate
Micromechanical with adhesive
Light cure
1-component system
Mixing not required (dual-cure
require mixing)
Minimal to none
Micromechanical with adhesive
Very good
Very good
Excellent
Excellent
Fair
Good
Excellent
Very good
Initially moisture sensitive,
relatively few steps, slower
curing
Low
Thermal expansion and
contraction similar to tooth
structure
Self-adhesive restoratives
Luting agents
Liners/bases
Restoratives
Therapeutics
Less moisture sensitive,
relatively few steps
Tolerates more moisture,
requires bonding agent
Moderate-Low
Higher thermal expansion and
contraction and polymerization
shrinkage compared to GICs
Self-adhesive restoratives
Adhesives
Luting agents
Liners/bases
Restoratives
Therapeutics
Moderate
Higher thermal expansion and
contraction and polymerization
shrinkage
Luting agents
Restoratives
Preventives
Technique sensitive, rubber
dam and requires acidetching/priming/bonding
Low
Highest thermal expansion and
contraction and polymerization
shrinkage
Adhesives
Luting agents
Restoratives
Preventives
Solubility
Dimensional
changes
Uses
Compomers
Ion-leachable glass
Glass and silica fillers
Dimethacrylate monomers
Polyacid-modified methacrylate
monomers
Photoinitiators
Silane coupling agents
Acid-base reaction + free
radical polymerization
Light cure
1-component system
Mixing not required
Composites
Glass and silica fillers
Dimethacrylate monomers
Photoinitiators
Silane coupling agents
Free radical polymerization
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