I had a PFM crown on my front tooth when I was 16. Now I'm 25 and I want to change it to all porcelain crown (Photo)

Before anything,I've booked an appointment with a periodontics Dr for a gingival leveling to modify the difference in the gum level on my front 2 teeth.Then,I want to replace my implant's crown.I am very concerned with its color,so i've considered veneering this and my other adjacent teeth.so my question is that is the veneer gonna stick out to my new all porcelain implant crown?What material is used in the all porcelain crown?what material should be used for veneer?and which one is better?

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