The current status of materials for posterior composite restorations: the advent of low shrink.
Polymerization contraction, and the stresses associated with this, have presented problems with resin composite materials, particularly when used to restore cavities in posterior teeth. This paper summarizes the problems associated with polymerization contraction and examines methods used to overcome this, in particular, by the use of materials which have reduced percentage contraction when compared with traditional materials.


CONCLUSIONS
Use of a material with reduced polymerization contraction should lead to simpler restoration placement.
Burke
F J trevor
FJ
Primary Dental Care Research Group, University of Birmingham, School of Dentistry, College of Medical and Dental Sciences, St Chad's Queensway, Birmingham.
Palin
W M
WM
James
A
A
Mackenzie
L
L
Sands
P
P
D003188:Composite Resins / Q000737:chemistry*; D018772:Dental Marginal Adaptation; D003793:Dental Restoration, Permanent / Q000379:methods*; D003799:Dental Stress Analysis; D006801:Humans; D008963:Molar; D010316:Particle Size; D044367:Phase Transition
D003188:Composite Resins; C543062:Filtek LS Low Shrink resin; C510379:QuiXfil; C541508:clearfil majesty