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The Hex-Lock Temporary Abutment is designated for use on the internal hexagon implant interface for less than twenty-eight days usage which is placed in the edentulous mandibles or maxillae, for fixation of a final crown. The intended use of the Hex-Lock Temporary Abutment is identical to the intended use of the predicate device, the ProTect abutment from Friadent. The plastic temporary abutment is intended to be used to create an esthetic emergence through the gingiva between implant uncovering and final restoration with screw-retained or cemented restorations. Use of the plastic abutment is not to exceed twenty-eight (28) days. If time between placement of temporary abutment and final restoration needs to exceed twenty-eight (28) days then the use of a titanium abutment, which is indicated for longer-term use, is required.
The abutment can be used for either a single tooth or multiple tooth unit provisional restoration and can be modified in height to suit individual needs during the fabrication of the provisional prosthesis.
The plastic temporary abutment can be used to create esthetic, screw-retained or cemented provisional restorations at second stage uncovering. Once the restoration has been applied to the temporary abutment, it can be used to develop a more esthetic emergence profile. Temporary abutment is not to be used as a permanent abutment. Not to exceed 28-days of placement.

The Hex-Lock Temporary Abutment is available in 4.5mm, 5.5mm, and 6.5mm outer diameter lengths for the internal hexagon interface. The abutment/implant platform diameter is 3.5mm, 4.5mm, and 5.7mm for the internal hexagon interface. All the abutments exhibit the internal hexagon interface.
The Hex-Lock Temporary Abutment is a new abutment design that is being submitted to interact with an internal hexagon dental implant system. The abutment features an internal hex engaging plastic cylinder with retentive parallel walls and a flared cuff used for short term restorations less than twenty-eight (28) days. This abutment will attach directly to the implant with a retaining screw with a long shaft that protrudes from the top of the abutment to facilitate the fabrication of the provisional prosthesis. Both screws allow for length reduction for custom height restorations. The abutment will exhibit the internal hex engaging feature. The abutment/implant interface remains unchanged.

The provided text is a 510(k) summary for a dental device (Hex-Lock Temporary Abutment). It focuses on demonstrating substantial equivalence to a predicate device based on design, materials, and intended use. There is no information within the document about acceptance criteria or a study proving that the device meets such criteria in terms of performance metrics or clinical outcomes.

Therefore, I cannot provide the requested information. The document does not describe any such studies, sample sizes, expert involvement, adjudication methods, MRMC studies, standalone performance, or ground truth establishment. This type of submission relies on demonstrating equivalence rather than fulfilling performance criteria through a specific study as would be seen for devices requiring clinical performance data.

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