While screw-retained implant crowns are favored today, certain clinical situations dictate cemented crowns on custom abutments. I won’t be going into the different scenarios that favor screw-retained over cemented. Nor will this article cover the advantages and disadvantages of each approach. I’ll assume you already know that… Or, you simply have your own preferences.
I prefer screw-retained whenever possible. But, sometimes it’s not possible or practical.
This article describes a way to document where the screw access in the abutment is relative to the cemented crown restoration for future reference if needed.
Patient’s got a screw loose?
Implant screws sometimes come loose. Fortunately, I have seen none of mine… yet. But, it could happen to any of us, eh? I’ve had plenty of cemented implant crowns show up in my practice with a loose screw. It’s a vexing issue. There are typically two options:
- Cut off the crown and start over with a new restoration.
- Cut a channel through the crown to the screw access and remove the abutment and crown as a single unit… to save the restoration. Place a new screw, torque, and restore the new access with composite.