Recent studies have shown that screw-retained implant restorations are more biocompatible than cement-retained restorations. It is therefore recommended that cement-retained restorations be limited to the following situations:
1) When a screw access hole would result in unsupported material (greater resistance to porcelain fracture).
2) When resistance to offset loading is desired (allows forces to be better distributed along the axial inclination of the implant).
3) When a screw access hole would be visible (enhance esthetics).
4) When an intact occlusal surface is desired (occlusal table can be adjusted).
5) To correct implant malposition or angulation.
6) To reduce treatment costs.
7) To simplify the fabrication procedure.
8) When a passive fit is desired (40µm of cement space can compensate for laboratory distortions).
9) When a patient has limited opening.
Choosing Between Screw-Retained and Cement-Retained Implant Crowns
Cemented and Screw-Retained Implant Reconstructions: A Systematic Review of the Survival and Complication Rates
Clinical Performance of Screw-Versus Cement-Retained Fixed Implant-Supported Reconstructions- A Systematic Review
Long-Term Outcome of Cemented Versus Screw Retained Implant-Supported Partial Restorations
Principles of Screw-Retained and Cement-Retained Fixed Implant Prosthesis- A Critical Review
Thanks for reading, and I welcome your feedback.
Best,
Dr. Pechter
1) When a screw access hole would result in unsupported material (greater resistance to porcelain fracture).
2) When resistance to offset loading is desired (allows forces to be better distributed along the axial inclination of the implant).
3) When a screw access hole would be visible (enhance esthetics).
4) When an intact occlusal surface is desired (occlusal table can be adjusted).
5) To correct implant malposition or angulation.
6) To reduce treatment costs.
7) To simplify the fabrication procedure.
8) When a passive fit is desired (40µm of cement space can compensate for laboratory distortions).
9) When a patient has limited opening.
Choosing Between Screw-Retained and Cement-Retained Implant Crowns
Cemented and Screw-Retained Implant Reconstructions: A Systematic Review of the Survival and Complication Rates
Clinical Performance of Screw-Versus Cement-Retained Fixed Implant-Supported Reconstructions- A Systematic Review
Long-Term Outcome of Cemented Versus Screw Retained Implant-Supported Partial Restorations
Principles of Screw-Retained and Cement-Retained Fixed Implant Prosthesis- A Critical Review
Thanks for reading, and I welcome your feedback.
Best,
Dr. Pechter
