What a zirconia crown costs in Karachi, per tooth.

The average life of a crown is ten years. However, if done correctly, crowns last twenty years and beyond.

There will be no black line near the gum. That problem was associated with metal and porcelain crowns, which have a layer of metal beneath the porcelain that shows through.

A crown milled from a single solid block of zirconia. Nine in ten crowns fitted at this clinic are zirconia. Because it is one piece with nothing layered on top, there is no overlying material to chip off, which is what happens with metal-and-porcelain crowns.

By a CAD/CAM process: the design is computer-led with minimal human intervention, and the crown is milled from a solid block of zirconia by robotic arms. That is what makes the fit so precise.

Two. At the first the tooth is prepared and an impression is taken and sent to the laboratory. Turnaround is normally five days to a week; urgent cases take two working days. At the second visit the crown is fitted after the bite and the technical details are checked.

Yes, and that is part of why they are used almost exclusively here. Zirconia comes in a range of opacities and strengths, more translucent and more aesthetic for front teeth, stronger grades for molars and back teeth. It can even be used for people who grind their teeth, which used to mean a metal crown and no longer does.