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Nobel Biocare's Multi-Unit Abutment is a premanufactured prosthetic component intended for use as an aid in prosthetic rehabilitation. Nobel Biocare's Multi-Unit Abutments fit the following endosseous implants:

• AstraTech 3.5, 4.0, 4.5, 5.0 mm
• Camlog 3.3, 3.8, 4.3, 5.0, 6.0 mm
• Ankylos 3.5, 4.5, 5.5, 7.0 mm

Nobel Biocare's Multi-Unit Abutment is an artificial tooth abutment designed to fit and function on the below endosseous implants:

• AstraTech 3.5, 4.0, 4.5, 5.0 mm -
• -Camlog 3.3, 3.8, 4.3, 5.0, 6.0 mm
• . Ankylos 3.5, 4.5, 5.5, 7.0 mm
  The Multi-Unit Abutment is a prosthetic device that fits only the endosseous implants specified. The device has been developed for long-term, permanent use.
  Nobel Biocare's Multi-Unit Abutment is similar in design, intended use, and operation to the abultnents cleared in predicate devices.

The provided text is a 510(k) Summary for a dental abutment device. It outlines the device description, indications for use, and a letter from the FDA confirming substantial equivalence. However, it does not include information about acceptance criteria, detailed study results, sample sizes for test or training sets, expert qualifications, ground truth establishment, or any comparative effectiveness studies (MRMC) or standalone performance studies.

Therefore, I cannot provide the requested information from the given input. The document focuses on regulatory approval based on equivalence to predicate devices, rather than detailed performance study results with acceptance criteria.

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