Tear and rupture of elastomeric dental impression materials.
The curing time dependence of the tear energy, tensile strength and ultimate extension ratio of a range of characterized elastomeric impression materials was investigated. This variation of tensile strength and ultimate extension ratio was correlated with the development of the network structure. The tear energy showed only minor changes as the curing proceeded.
D003760:Dental Impression Materials; D004548:Elasticity; D006801:Humans; D013718:Tensile Strength; D013997:Time Factors; D014783:Viscosity
D003760:Dental Impression Materials