Journal of Prosthodontics News
Technique for Cementing Screwmentable Implant Crowns to Prevent Misalignment
Now online in the Journal of Prosthodontics, a new technique report authored by ACP members Andrew S. Ryser, DDS, Ken Kim, DDS, Jennifer V. Sabol, DDS, and Steven Handel, DMD.
Implant-retained crowns can be restored via cement, screw, or a hybrid of the two methods. The combination implant crown was designed to combine the advantages of cement-retained and screw-retained restoration while alleviating the risks associated with cement-retained restorations. Since 1992 these types of restorations have been called different terms to include: “screw cement-retained type prostheses” and “screwmentable” restorations.
Misalignment of screwmentable crowns has been observed in clinical practice, however the frequency of this misalignment is not documented in the literature. When it does occur, it may necessitate significant chairside adjustment for delivery, de-cementation, and attempt to recement correctly, or refabrication altogether.
This article describes a novel technique that can be utilized by clinicians to ensure that a screwmentable crown is cemented onto the abutment in the exact position as it was tried in the mouth and prevent any misalignment of the crown.
This technique prevents any unwanted movement of the crown for screwmentable restorations on the abutment which could change the interproximal and occlusal contacts at final delivery. This technique also simplifies excess cement cleanup and prevents the clinician from costly remakes or spending extra chair time adjusting interproximal contacts or occlusion due to erroneous cementation.
Ryser AS, Kim K, Sabol JV, Handel S. Technique for cementing screwmentable implant crowns to prevent misalignment. J Prosthodont. 2024; 1–4. https://doi.org/10.1111/jopr.13828
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