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KDG Abutments are pre-manufactured prosthetic components for direct connection to endosseous dental implants and are intended for use as an aid in prosthetic rehabilitation.

The KDG-Osteon Precision Milled Suprastructure is indicated for attachment to KDG Abutments in the treatment of partially or fully edentulous jaws for the purpose of restoring chewing function. The KDG-Osteon Precision Milled Suprastructure is intended for attachment to a minimum of two (2) abutments.

Endosseous dental implants are surgically implanted into a patient's mouth to provide support for prosthetic devices, such as artificial teeth, in order to restore the patient's chewing function. Endosseous dental implant are secured to dental implants with a retaining screw to provide support for prosthetic devices, such as artificial teeth, in order to restore the patient's chewing function. Prosthetic devices used with the dental implant abutments in this submission may be screw-retained or cemented.

The purpose of this submission is the marketing clearance for KDG Abutments which comprises endosseous rootform dental abutments, abutment screws, and other associated components for single-unit, and overdenture restorations. The Subject device abutment components introduce 30° post correction angle multi-unit abutments compatible with the sponsor's previously cleared implants.

The Keystone family of abutments are compatible with the Keystone implants which have a hex-lobe internal connection. The Paltop family of abutments are compatible with the Paltop implants which have hex-wall internal connection.

The KDG-Osteon Precision Milled Suprastructure is an overdenture bar which is compatible with the Subject device abutments. The overdenture bar is dental restorative device that is intended for screw-retained attachment to dental abutments to aid in the treatment of partial and totally edentulous patients for the purpose of restoring their chewing function. The KDG-Osteon Precision Milled Suprastructure is fabricated by means of CAD/CAM technology and is used to facilitate the attachment of both fixed and removable prostheses.

The Osteon Precision Milled Suprastructure is designed for an individual patient from scans of the patient's impression. The suprastructure is manufactured in biocompatible Titanium alloy with the aid of Computer Aided Design (CAD) and Computer Aided Manufacturing (CAM) technology. All CAD/CAM fabrication is performed by Osteon Medical, within our premises. The abutment-born Suprastructure is only indicated for straight placement and is not to exceed the maximum angulation of the connected multi-unit abutments.

KDG-Osteon Precision Milled Suprastructures facilitate the attachment of both removable and fixed dental prosthesis and hence categorized as type B.

The Subject device abutments, abutment screws, and bar suprastructure are fabricated from Ti-6Al-4V ELI titanium alloy (Grade 23) which conforms to ASTM F136, Standard Specification for Wrought Titanium-6Aluminum-4Vanadium ELI (Extra Low Interstitial) Alloy for Surgical Implant Applications (UNS R56401).

All Subject device components are one-time use device components are provided sterile and sterilized by gamma irradiation except for the Single-Unit and Multi-Unit copings, the KDG-Osteon Precision Milled Suprastructure and all replacement screws which are provided non-sterile. Devices provided as non-sterile are sterilized by steam.

The provided document is a 510(k) Premarket Notification from the FDA to Keystone Dental Inc. regarding their KDG Abutments. This document primarily focuses on establishing substantial equivalence to predicate devices based on indications for use and technological characteristics, supported by non-clinical performance data.

Crucially, this document does NOT contain information related to a study that proves the device meets specific acceptance criteria for AI/ML performance, nor does it describe a multi-reader multi-case (MRMC) comparative effectiveness study, standalone algorithm performance, or the establishment of ground truth for training or test sets in the context of an AI-powered device.

The acceptance criteria mentioned in the document refer to the performance of dental abutments in the context of mechanical testing (fatigue testing per ISO 14801:2016) and biocompatibility, not the performance of an AI/ML algorithm.

Therefore, I cannot provide the requested information for acceptance criteria and studies related to AI/ML performance based on the input text. The information in the document pertains to traditional medical device clearance.

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