Screw retained implant crowns
Pros of Screw Retained implant crowns.
1. Easier maintenance. Screw retained crowns can be tightened, removed, and exchanged without damaging the crown or the abutment.
2. Stronger and long lasting. Screw retained implants have a more secure connection between the abutment and the crown, and check ups can be done with relative ease.
3. Recommended for bridges and cantilevers. Screw retained crowns provide a longer lasting restoration and easier adjustments than cement retained crowns.
Cons of Screw Retained implant Crowns:
1. Less flexibility in regards to positioning the implant crown. Unlike cement retained crowns, which can be adjusted with the cement between abutment and crown, screw retained crowns must be installed at a specific and fixed angle.
2. Screw access holes are sometimes visible and uneven after filling, altering the occlusion and shape of the crown. These holes are less appealing to the patient.
3. Screws can become loose over time, and fractures can occur along the hole, even with adequate composite and acrylic added.