Understanding Multi-Unit Abutment Tops
Platform Dimensions
DESS® Multi-Unit Abutment tops come in two sizes, regular platform (RP) and wide platform (WP).
WP is only used in Nobel Brånemark® WP compatible parts. WP Multi-Unit Abutment tops have a 6.0mmD and use M1.8 screw threads.
RP Multi-Unit Abutment tops have a 4.8mmD and use M1.4 screw threads. Systems with this platform type include:
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- 3i Biomet Certain® Low Profile
- 3i Osseotite® External Hex
- Astra EV® Multibase
- Blue Sky Bio® (BSB)
- BioHorizons® Internal Hex
- BioHorizons® External Hex
- DESS® Multi-Units
- Hahn™
- Hiossen®
- Keystone® Genesis/Prima
- Megagen Anyridge® N type
- Neodent GM® Mini
- Nobel Active®
- Nobel Brånemark®
- Nobel Replace®
- Noris Medical®
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Compatible Parts
Multi-Unit Abutment tops can be found under On Top of Multiunit Components. These parts fit on top of the connections listed above.
Because the Straumann® Screw-retained Abutment (SRA) has slightly different dimensions than the systems listed above, these can be found under On Top of SRA Components.
Scan Bodies
DESS® has two scan bodies available for Multi-Unit Abutment RP abutment tops: Lab and Intraoral. Both scan bodies are reusable and autoclavable, while the intraoral scan body can be used in both an IOS scanner and a lab scanner.
Ti Bases, Screws, & Drivers
Once you've processed your scan, proceed with one of the following:
This item is available in a 6mm or 8mm collar height. However, any RP Multi-Unit Abutment screws will work with this unit.
This AngleBase® comes with an Angulated Multi-Unit Abutment (RP) Screw.

- Multi-Unit Direct screws
These are typically used to make a titanium bar that connects directly to the Multi-Unit Abutment.
• Full Arch Screw (Flat Seat Screw)
• Long MUA Screw
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Screwdrivers
DESS® has the screwdrivers for the Multi-Unit Abutment screws.
• Hex 0.047" / 1.20mm
• Hex 0.048" / 1.22mm
• Hex 0.050" / 1.27mm
• Unigrip / Star
• Torx Ball


Libraries
DESS® has made digital library files available and for the following Multi-Unit top components:
- Lab scan body
- Intraoral scan body
- Straight and Angled Ti Bases
- Direct to MUA using the Full Arch Screw (Flat Seat Screw) or the Long MUA Screw
If you would like to purchase a multiunit abutment or multiunit abutment top in bulk, contact orders@dess-usa.com.