How to avoid failures while seating implant retained crowns?
Incident:
Formation of cement cushion between abutment and crown.
Disadvantage:
Crown can not be seated in full.
How to avoid?
By adequate crown venting - the occlusal acces of the crown will allow evacuation of cement.
Incident:
Abutment screw gets loos over time.
Disadvantage:
Decementation of crown may be difficult to almost impossible resulting in need of destruction.
How to avoid?
Occlusal open crown will allow for future abutment screw tightening.
