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S.I.N. Dental Implant System is intended for placement in the maxillary or mandibular arch to provide support for single-unit or multi-unit restorations. When a one-stage surgical approach is applied, the S.I.N. Dental Implant System is intended for immediate loading when good primary stability is achieved and with appropriate occlusal loading.

All digitally-designed custom abutments for use with Interface CAD-CAM abutments are to be sent to a S.I.N.- validated milling center for manufacture.

The Abutment Mini Angled Morse 450 is intended for use with the S.I.N. Dental Implant System Zygomatic implants. S.I.N. Dental Implant System Zygomatic implants are intended for placement in the maxillary arch to provide support for fixed or removable dental prostheses in patients with partially or fully edentulous maxillae. When a one-stage surgical approach is applied, the S.I.N. Dental Implant System Zygomatic implants are intended for immediate loading when good primary stability is achieved and with appropriate occlusal loading.

The purpose of this submission is to add components to the S.I.N. Dental Implant System, which includes components cleared previously in K222231, K231127, and K170392.

This submission includes dental implants Epikut S with a Morse taper (MT) abutment interface and an acid-etched endosseous surface, and Epikut S Plus implants with an endosseous surface produced by acid- etching followed by application of a hydroxyapatite coating (HAnano) and the same described connection. The implant design and endosseous surfaces are nearly identical to the Epikut S and Epikut S Plus implants cleared in K222231, with the exception of the additional body/platform diameter (6.0 /5.2 mm) with lengths of 8.5, 10, 11.5, 13.

The subject device dental implants are summarized in the following table.

This submission includes Abutment Mini Angled Morse 45° in sizes from 1.5, 2.0, 2.5 with a 16° Morse taper connection mating abutments for screw retained, multi-unit prostheses and a prosthetic platform diameter of 4.8 mm, that is for exclusively use with cleared Zygomatic Plus implant. The corresponding abutment screw is PFMAAM 16A.

This submission includes Interface abutment MT 16° prosthetic components for fabrication of patient-specific abutments that are compatible with implants from S.I.N. Dental Implant System. Subject device Interface Abutments are two-piece abutments for which the second part (or top half) is the ceramic superstructure. The second part is designed and manufactured using CAD-CAM techniques. The titanium component of the Interface Abutments Morse Taper has a cementable platform diameter of 3.5mm, 4.5mm, or 5.5mm, cementable post-height of 4.0mm or 6.0mm, and a gingival height built into the titanium base component from 0.5mm to 4.0mm. The two pieces of the Ti-Base are bonded using Panavia Universal Dual-Cure Cement (K150704), as referenced in K190936. These abutments are used with a fixation screw PFMT 02A.

After scanning the intraoral area, the S.I.N.-validated milling center will receive the STL file and design the coping/superstructure using computer software (CAD) according to the design parameters below and the space available.

Design parameters for all Interface CAD-CAM Abutments superstructure are:

• Minimum wall thickness – 0.5 mm
• Minimum abutment post height for single-unit restoration – 4.0 mm
• Maximum angle – 0°. Straight only
• Maximum gingival height – 5.0 mm
• Minimum Gingival height – 0 mm
• Maximum allowable abutment Post Height – 6 mm
• Total abutment height – 10mm
• Abutment diameter – depends on available space (for the patient)

By definition, the abutment post height is considered by FDA to be the "stump" portion above the gingival collar, to which the restorations attach.

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The Zfx Abutments are intended to be used in conjunction with endosseous dental implants in the maxillary or mandbular arch to provide support for prosthetic restorations.

All digitally designed custom abutments or superstructures and/or hybrid abutment crowns for use with Zfx TiBase or Pre-Milled Blank Abutments are intended to be sent to a Zfx validated milling center for manufacture.

The Zfx TiBase abutments for the 03.25 mm Certain implant bodies, and 03.1 mm Eztetic implant bodies are indicated for maxillary lateral and mandibular central/lateral incisors only.

The subject device, Zfx Abutments, consists of two abutment types, a TiBase and a Pre-milled Abutment Blank, with corresponding retaining screws. Zfx Abutments are offered in a variety of connections compatible with ZimVie dental implants. All abutments and screws are provided non-sterile.

TiBase Abutments: Subject device TiBases are two-piece abutments. The pre-manufactured titanium base component is the apical part. The coronal part of the two-piece abutment is a CAD/CAM designed and manufactured superstructure. The subject device TiBase abutments are available in hexed/engaging and non-hexed/nonengaging configurations. The engaging TiBase abutments are intended for single and multi-unit restorations and the non-engaging TiBases are intended for multi-unit restorations. The superstructure is intended to be manufactured at a Zfx validated milling center.

Pre-milled Abutment Blanks: The Pre-milled Abutment Blank is a cylindrical titanium alloy abutment designed for patient-specific abutment fabrication with CAD/CAM technology. The patient-specific abutment milled from a Pre-milled Abutment Blank is secured directly to the implant using a retaining screw. Pre-milled Abutment Blanks are available in an engaging/hexed design only for single-unit and multi-unit restorations.

Retaining Screws: Corresponding retaining screws are packaged with the abutment and replacement screws are available individually. All screws are compatible with the corresponding ZimVie dental implants.

Material Composition: All subject device abutments are made of titanium alloy Ti-6Al-4V ELI conforming to ASTM F136. Screws are made of either titanium alloy Ti-6A1-4V ELI conforming to ASTM F136, or Gold-Tite® screws with stainless steel conforming to ASTM F138. Gold-Tite screws have a gold-plating conforming to ASTM B488 and ASTM B571. Zirconia superstructures for use with the TiBase Abutments are made of zirconia conforming to ISO 13356.

The provided text is an FDA 510(k) clearance letter for Zfx Abutments, and as such, it focuses on demonstrating substantial equivalence to a predicate device rather than presenting a performance study with detailed acceptance criteria and supporting data in the way a clinical study report or a formal performance evaluation report would.

Therefore, the information required to answer many of the questions regarding acceptance criteria, sample sizes, expert involvement, and ground truth establishment is not present in this document. The document primarily outlines the device's technical specifications, indications for use, and a comparison to predicate devices, supported by non-clinical testing data (mechanical testing, biocompatibility, sterilization, etc.).

However, I can extract the information that is available and explain why other requested details are missing.

Acceptance Criteria and Device Performance (Based on "Equivalence to Marketed Devices" and "Performance Data" sections):

This document describes a substantial equivalence submission, meaning the acceptance criteria are primarily demonstrated by showing the device is as safe and effective as a legally marketed predicate device. The performance is assessed through non-clinical testing to ensure it meets established standards comparable to the predicate.

Missing Information and Explanations:

1. Sample size used for the test set and the data provenance (e.g., country of origin of the data, retrospective or prospective):

   • Not provided. This document details a 510(k) submission based on non-clinical testing for substantial equivalence, not a clinical trial or performance study with human data. The "Performance Data" section explicitly states: "No clinical data were included in this submission." Therefore, there is no "test set" in the context of clinical images or patient data to analyze. The "samples" used were physical samples for mechanical, sterilization, and biocompatibility testing. The data provenance would be from laboratory tests.

2. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g., radiologist with 10 years of experience):

   • Not applicable/Not provided. As no clinical data or clinical "test set" was used, there was no need for expert adjudication to establish ground truth from patient data. The ground truth for mechanical and material properties is established by engineering specifications and industry standards.

3. Adjudication method (e.g., 2+1, 3+1, none) for the test set:

   • Not applicable/None. No clinical test set to adjudicate.

4. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:

   • Not applicable. This device (Zfx Abutments) is a physical dental implant component, not an AI software/device. Therefore, an MRMC study or AI assistance is not relevant to its performance evaluation for this submission.

5. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:

   • Not applicable. As above, this is a physical medical device, not an algorithm or AI.

6. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):

   • The "ground truth" for demonstrating substantial equivalence for this device relies on engineering specifications, material standards (e.g., ASTM, ISO), mechanical test results (e.g., forces to fracture), and comparative analysis with the predicate device's established safe and effective performance. There is no clinical outcomes ground truth cited here.

7. The sample size for the training set:

   • Not applicable. This refers to a dataset for training an AI model. This device is not an AI/software.

8. How the ground truth for the training set was established:

   • Not applicable. As above, no training set for an AI model.

In summary, this document is a regulatory clearance letter focused on substantial equivalence for a physical dental device. The "study" proving it meets acceptance criteria consists of various non-clinical bench tests and a comparison to a predicate device's specifications and performance, rather than a clinical study with patients or an AI model's performance evaluation.

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