Asmussen, E. : Composite Restorative Resins. Composition Versus Wall-to-Wall Polymerization Contraction, Acta Odont Scand33 :337-344,1975.
2.
Council on Dental Materials and Devices, New American Dental Association Specification No. 27 for Direct Filling Resins, JADA94 :1191-1194,1977.
3.
Cowperthwaite, G.F.; Foy, J.J.; and Malloy, M.A.: Comparison of bis-GMA and Various Diluting Monomers for Composite Filling Materials and Sealants, IADR Progr & Abst58: No. 598, 1979.