Certain« UCLA Abutment

The OSSEOTITE« Certain Line of restorative components includes a newly designed UCLA Abutment. This new design provides greater predictability and more flexibility for laboratory technicians when waxing and casting implant level restorations.

• Improved Cylinder Retention Design
The new design incorporates machined vertical grooves that reduces the potential for miscasts due to the smoother alloy flow onto the gold alloy cylinder during casting. The vertical grooves provide mechanical retention and are designed to eliminate the problem on previous UCLA designs of the alloy stopping on the horizontal retention instead of flowing to the margin (fig. 10).

• Chamfer Margin
The chamfer margin design provides a smooth transition from the gold alloy cylinder to the cast alloy at the junction. It also aids in the prevention of alloy flowing onto the interface area of the gold alloy cylinder during casting (fig. 10).

• Reduced Collar Height
The collar height has been reduced from 1mm to 0.25mm to provide greater flexibility when fabricating restorations for implants with shallow tissue depths. This allows the restoration to emerge from the implant platform more quickly and to add porcelain closer to the implant platform on screw retained restorations (fig. 11).

• Collar Adjustment After Casting
The reduced collar height may cause an undercut laterally around the implant platform. The undercut should be removed after casting by tapering the collar back (fig. 12).

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