Zirconia Glazes

About glazes

A zirconia glaze gives a zirconia restoration a smooth, glassy surface, which enhances both its aesthetics and its function. An overglaze is a glazed surface made by adding a fluxed glass that usually vitrifies at a lower temperature. Glaze traditionally comes as powder and liquid; spray and paste forms are newer.

The final glassy layer, meant to give gloss and colour stability and to reduce plaque retention and wear on the opposing tooth.

Sources: Effect of different glazing methods on the surface roughness and hardness of zirconia ceramics: an in vitro study (BMC Oral Health 2025) · The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017)