Phosphate-based dental investing material

A phosphate-based dental investing material comprising

• a mixed powder comprising an aggregate powder and a phosphate-based binder powder,
• a liquid, and
• an alkaline metal salt of phosphoric acid,
• wherein the alkaline metal salt of phosphoric acid is present in an amount of from 0. 1 to 2.0 wt. parts to 100 wt. parts of the mixed powder, and the phosphate-based binder powder is a powder mixture of a metal oxide and phosphate.

A phosphate-based dental investing material comprising

• a mixed powder comprising an aggregate powder and a phosphate-based binder powder,
• a liquid, and
• an alkaline metal salt of phosphoric acid,
• wherein the alkaline metal salt of phosphoric acid is present in an amount of from 0.1 to 2.0 wt. parts to 100 wt. parts of the mixed powder, and the liquid is a colloidal silica solution.

A phosphate-based dental investing material comprising

• a mixed powder comprising an aggregate powder and a phosphate-based binder powder,
• a liquid, and
• an alkaline metal salt of phosphoric acid,
• wherein the alkaline metal salt of phosphoric acid is present in an amount of from 0.1 to 2.0 wt. parts to 100 wt. parts of the liquid, and the aggregate powder is at least one selected from the group consisting of quartz, cristobalite, tridymite, alumina, zircon, zirconia, mullite and spinel.

A phosphate-based dental investing material comprising

• a mixed powder comprising an aggregate powder and a phosphate-based binder powder,
• a liquid, and
• an alkaline metal salt of phosphoric acid,
• wherein the alkaline metal salt of phosphoric acid is present in an amount of from 0.1 to 2.0 wt. parts to 100 wt. parts of the liquid, and the phosphate-based binder powder is a powder mixture of a metal oxide and phosphate.

A phosphate-based dental investing material comprising

• a mixed powder comprising an aggregate powder and a phosphate-based binder powder,
• a liquid, and
• an alkaline metal salt of phosphoric acid,
• wherein the alkaline metal salt of phosphoric acid is present in an amount of from 0.1 to 2.0 wt. parts to 100 wt. parts of the liquid, and the liquid is a colloidal silica solution.

A phosphate-based dental investing material comprising

• a mixed powder comprising an aggregate powder and a phosphate-based binder powder,
• a liquid, and
• an alkaline metal salt of phosphoric acid,
• wherein the alkaline metal salt of phosphoric acid is present in an amount of from 0.1 to 2.0 wt. parts to 100 wt. parts of each of the mixed powder and the liquid, and the aggregate powder is at least one selected from the group consisting of quartz, cristobalite, tridymite, alumina, zircon, zirconia, mullite and spinel.

A phosphate-based dental investing material comprising

• a mixed powder comprising an aggregate powder and a phosphate-based binder powder,
• a liquid, and
• an alkaline metal salt of phosphoric acid,
• wherein the alkaline metal salt of phosphoric acid is present in an amount of from 0.1 to 2.0 wt. parts to 100 wt. parts of each of the mixed powder and the liquid, and the phosphate-based binder powder is a powder mixture of a metal oxide and phosphate.

A phosphate-based dental investing material comprising

• a mixed powder comprising an aggregate powder and a phosphate-based binder powder,
• a liquid, and
• an alkaline metal salt of phosphoric acid,
• wherein the alkaline metal salt of phosphoric acid is present in an amount of from 0.1 to 2.0 wt. parts to 100 wt. parts of each of the mixed powder and the liquid, and the liquid is a colloidal silica solution.