The material in the
following link is reprinted from
Biomaterials,21(13)
F.Stahl, S.H. Ashworth, K.D. Jandt and R.W. Mills
Light emitting diode (LED) polymerisation of dental composites:
flexural properties and polymerisation efficiency
pp.1379-1385, Copyright 2000, with permission from Elsevier Science.
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