A screw-retained abutment on which a crown or bridge-retainer unit is cemented.
In large-span bridgework using cast-metal frameworks, inaccuracies may arise due to casting distortion or post-ceramic firing distortion. Cement-retained restorations are more ‘forgiving’ in terms of fit and this compensates for some of the inaccuracies that may arise when casting.
The implant angulation and therefore screw access position is not critical as the abutment can ‘compensate’ for this.
Depending on the nature of the luting cement, cement-retained restorations may either become loose unexpectedly or can be difficult to remove i.e. poor retrievability.
Excess cement may present a problem if not cleaned from around restoration margins especially if these are subgingival. Cement retention in the gingival sulcus may lead to peri-implant mucositis or potentially peri-implantitis.
SCD produce implant-retained restorations with either original or genuine components of implant systems or by using cutting-edge milling technology to fabricate custom components.