The crowns are made of zirconia, colored and polished to resemble healthy teeth.
From the dailyherald.com
The zirconia crowns are first milled in an exotic-looking, custom-made machine.
From the sacbee.com
When the glass consumes the zirconia, it also consumes the aluminum and titanium.
From the sciencedaily.com
While Homer's guard is down, the cat burglar sneaks past and steals the zirconia.
From the en.wikipedia.org
This coating functioned as a bridge between the zirconia matrix and the nanotubes.
From the sciencedaily.com
Zirconia is used when the material must withstand extremely high temperatures.
From the en.wikipedia.org
Of the 400 glasses, 399 contained a $10 cubic zirconia, reports the Tampa Tribune.
From the freep.com
It wasn't a gem, or even a shiny cubic zirconia, it was just exactly what his team needed.
From the fresnobee.com
Somewhere out there, another woman was mourning her lost cubic zirconia.
From the boston.com
More examples
Zirconium oxide: a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes
Zirconium dioxide (ZrO2), sometimes known as zirconia (not to be confused with zircon), is a white crystalline oxide of zirconium. Its most naturally occurring form, with a monoclinic crystalline structure, is the rare mineral, baddeleyite. ...
The oxide of zirconium, obtained as a white powder, and possessing both acid and basic properties. On account of its infusibility, and brilliant luminosity when incandescent, it is used as an ingredient of sticks for the Drummond light
An oxide of zirconium that has use as an abrasive. Rarely used alone,it is usually applied in 40% or 60% mixtures with aluminum oxide.
ZrO2 an acid refractory up to 2500 B0C (4532 B0F) having good thermal shock resistance and low electrical resistively.
Strong, tooth-colored zirconia posts are highly radiopaque and rigid. However, they are difficult to use, are expensive and, unless they are rough on the surface, do not offer optimal retention. ...
Porous zirconium oxide. Used as a chromatographic sorbent, usually coated or bonded with polymeric organic phase.
Zirconium Dioxide: a material from which ceramic knife blades can be made.