Introduction to Implant Crown Delivery
Implant crown delivery is a critical final step in the dental implant process. After the implant fixture has integrated with bone and the abutment is placed, the prosthetic crown must be fitted precisely to restore function and aesthetics. This article outlines the essential steps, highlights best practices from the UCSF School of Dentistry, and shares insights from a recent dental vlog featuring Dr. Sami.
Pre‑Delivery Preparation
Checking the Abutment Fit
Before a crown is placed, the dentist verifies that the abutment is seated correctly on the implant. A proper fit ensures that the crown will have a stable foundation. The abutment is inspected for:
- Correct length and diameter
- Absence of surface defects or contamination
- Alignment with the implant’s axis
Ensuring Proper Occlusion
Occlusion refers to the way the upper and lower teeth come together. In implant dentistry, the crown must not create premature contacts that could damage the implant or surrounding tissues. The dentist checks:
- Vertical dimension of occlusion
- Anterior guidance
- Interference points in the centric and eccentric positions
The Delivery Process
Step 1 – Positioning the Crown
Using a surgical guide or a custom mounting jig, the crown is carefully placed on the abutment. This step requires gentle handling to avoid damaging the ceramic or porcelain surface.
Step 2 – Verifying Clearance
After the crown is seated, the dentist checks for:
- No tissue or tooth contact before the screw is set
- Adequate space around the implant to allow for proper hygiene
- Smooth margins that do not irritate the gingival tissue
Step 3 – Setting the Screw
The implant crown is secured by a small screw that is tightened to a torque specified by the manufacturer. Key points include
