Hardening of model and die materials by an epoxy resin

Mechanical Analysis of a Polyurethane for use in Dental Modeling

“…When observing table 6, one verifies that the type IV plaster analyzed presents higher surface hardness than the polyurethane resin, but one also notes that the presence of the diatomite increases the surface hardness of the polymer. The high surface hardness expressed by the improved plasters does not confer good surface stability on the models obtained with these materials, as the plaster models do not resist wear by abrasion (Sanad, MEE., et al, 1980), a condition that can be verified in table 5.…”

Mechanical Analysis of a Polyurethane for use in Dental Modeling

“…When observing table 6, one verifies that the type IV plaster analyzed presents higher surface hardness than the polyurethane resin, but one also notes that the presence of the diatomite increases the surface hardness of the polymer. The high surface hardness expressed by the improved plasters does not confer good surface stability on the models obtained with these materials, as the plaster models do not resist wear by abrasion (Sanad, MEE., et al, 1980), a condition that can be verified in table 5.…”

Comparison of the Effect of Addition of Cyanoacrylate, Epoxy Resin, and Gum Arabic on Surface Hardness of Die Stone

“…Sanad et al used only epoxy resin as a surface hardener while Nitasha et al used gum arabic. Cyanoacrylate was used by Muhammad et al as a surface hardener .…”

“…Sanad et al standardized the incorporation of 1% gum arabic for types II and III gypsum. They proposed that this was the most efficient concentration to enhance abrasion resistance and strength of types II and III gypsum .…”

“…Sanad et al 10 groups. In the present study all three additives were used while mixing to enhance toughness without altering the surface dimensions.…”

Elaboración de modelos dentales didácticos en resina epóxica.

“…De acuerdo con Guijjarlapuddi, 9 los detalles de la superficie obtenidos con resina epóxica son superiores a los conseguidos con yeso. 10,11 Figura 5: Colocación de los dientes. alternativos como: metalización de troqueles, uso de resina epóxica y obtención de modelos en resina de poliuretano.…”

Mechanical Analysis of a Polyurethane for use in Dental Modeling

“…When observing table 6, one verifies that the type IV plaster analyzed presents higher surface hardness than the polyurethane resin, but one also notes that the presence of the diatomite increases the surface hardness of the polymer. The high surface hardness expressed by the improved plasters does not confer good surface stability on the models obtained with these materials, as the plaster models do not resist wear by abrasion (Sanad, MEE., et al, 1980), a condition that can be verified in table 5.…”

Comparison of the Effect of Addition of Cyanoacrylate, Epoxy Resin, and Gum Arabic on Surface Hardness of Die Stone

“…Sanad et al used only epoxy resin as a surface hardener while Nitasha et al used gum arabic. Cyanoacrylate was used by Muhammad et al as a surface hardener .…”

“…Sanad et al standardized the incorporation of 1% gum arabic for types II and III gypsum. They proposed that this was the most efficient concentration to enhance abrasion resistance and strength of types II and III gypsum .…”

“…Sanad et al 10 groups. In the present study all three additives were used while mixing to enhance toughness without altering the surface dimensions.…”

Elaboración de modelos dentales didácticos en resina epóxica.

“…De acuerdo con Guijjarlapuddi, 9 los detalles de la superficie obtenidos con resina epóxica son superiores a los conseguidos con yeso. 10,11 Figura 5: Colocación de los dientes. alternativos como: metalización de troqueles, uso de resina epóxica y obtención de modelos en resina de poliuretano.…”

Mechanical Analysis of a Polyurethane for use in Dental Modeling

“…When observing table 6, one verifies that the type IV plaster analyzed presents higher surface hardness than the polyurethane resin, but one also notes that the presence of the diatomite increases the surface hardness of the polymer. The high surface hardness expressed by the improved plasters does not confer good surface stability on the models obtained with these materials, as the plaster models do not resist wear by abrasion (Sanad, MEE., et al, 1980), a condition that can be verified in table 5.…”

Comparison of the Effect of Addition of Cyanoacrylate, Epoxy Resin, and Gum Arabic on Surface Hardness of Die Stone

“…Sanad et al used only epoxy resin as a surface hardener while Nitasha et al used gum arabic. Cyanoacrylate was used by Muhammad et al as a surface hardener .…”

“…Sanad et al standardized the incorporation of 1% gum arabic for types II and III gypsum. They proposed that this was the most efficient concentration to enhance abrasion resistance and strength of types II and III gypsum .…”

“…Sanad et al 10 groups. In the present study all three additives were used while mixing to enhance toughness without altering the surface dimensions.…”

Elaboración de modelos dentales didácticos en resina epóxica.

“…De acuerdo con Guijjarlapuddi, 9 los detalles de la superficie obtenidos con resina epóxica son superiores a los conseguidos con yeso. 10,11 Figura 5: Colocación de los dientes. alternativos como: metalización de troqueles, uso de resina epóxica y obtención de modelos en resina de poliuretano.…”