Abstract
QTH lamp heliolux, Led lamps Translux,Led lamps , dual - wave Led lamps Composite material - Charizma A 2 containing camphoroqunone photo initiator 14 hours after after curing of composite specimens 9mm/2 mm surface hrdness distribution was measured.The polymerization of compsite matrials activated with non- campphoroquinone photo - intiators may not be homogenous