Do not contact this clinic, and in general I advise you to treat your teeth in another country!!!
I put a seal 9 months ago, as a result, the seal broke off, the quality of medicine in Kazakhstan is at the bottom. The first time I also put it in the clinic, where the "5 stars", there the seal split in a week.
A good clinic with high-quality customer service. I put 4 crowns with all the preparatory work, I was satisfied.
I am completing my review after 1 year:
Of the 4 crowns, two loosened and one simply split (zirconium). 3 out of 4, excellent result.
The clinic is dragging its feet with an answer, even no one wanted to contact and talk after the official statement.