Zirconium is best crown

Zirconia is my first choice wherever possible. For front teeth, only zirconia crown. Back teeth, you can choose as per your convenience!

Both crown works same no added advantages. Only difference is looks. If you want aesthetics go for zirconia crown

Front teeth - zirconium Back teeth- ceramic

Both crowns have their own advantages. Understand them well n then you can decide better. Zirconia Monolithic crowns give you advantage of both strength and aesthetics with minimal tooth reduction. Hope this helps.

First I would like to see the xray, then only we can be sure which tooth to be rc treated. Coming to crown, teeth become brittle after rct so crown is must irrespective of of type. Three types of crown are there metal, ceramic fused to metal and metal free that is zirconia, it's your choice.if it's anterior teeth I would suggest metal free for posterior teeth anything is fine.