Non-greening porcelain compositions

A dental restoration having a glaze comprising:

• a low-fusing porcelain composition having non-greening properties whereby the porcelain is formed by the process comprising mixing glass precursor components together with an oxygen release agent;
• heating the mixture to a temperature in the range of about 1000.degree. C. to about 1100.degree. C. for a period of time to melt the components and agent;
• and cooling the mixture to form the porcelain composition.

A method of making a dental restoration comprising:

• forming a porcelain having non-greening properties whereby the porcelain is formed by the process comprising mixing glass precursor components together with a oxygen release agent and heating to a temperature in the range of 1000.degree. C. to 1100.degree. C. and cooling to form the porcelain composition;
• applying the porcelain as a layer onto a core component selected from the group consisting of a metal and ceramic framework, wherein the framework has a coefficient of thermal expansion between about 11 and 20.times.10.sup.-6 /.degree. C.;
• firing at a temperature between about 700.degree. C. to about 930.degree. C. for a period of time to form a glaze, wherein the glaze has non-greening properties.