(198 days)
The Perfit FS Dental Zirconia Fully Sintered Block is used for dental restorations using different CAD / CAM or manual milling machines. All blocks are processed through dental laboratories or by dental professionals.
The Perfit FS Dental Zirconia Fully Sintered Block consists of zirconium oxide which compresses ceramic for milling, grinding. It is a preshaded, fully sintered product and milled by dental technician with CAD/CAM machine for shaping artificial teeth such as crowns, bridges, veneers, inlay etc. The Perfit FS Dental Zirconia Fully Sintered Block are zirconia oxide block made available in different versions and chemical compositions of various colors, shades and dimensions and will further process the discs by milling them to make final dental restorations such as crowns, bridges, veneers, inlays and on lays based on the anatomical rendering of the patient's teeth using CAD/CAM equipment. They are available in different models that differ in various specification and color. There are white zirconia products(White) and colored zirconia products, and colored zirconia is also divided into Monolaver(A1, A2, A3.5, A4, B1, B2, B3, B4, C1, C2, C3, C4, D2, D3, D4) color products , Shade multi-laver(ML A1/A2/A3, A1M, A2M, A3.5M, A4M)color products. The white zirconia is composed of Zr02+Y203+Nb205 and an additional inorganic pigment: Al203 and Other oxide. The color zirconia products are derived from the same zirconia powder as the regular white zirconia powder, with the addition of very small amount of inorganic pigments: Fe203 and other oxide. The composition of the Dental Zirconia Block including the white zirconia and the color zirconia conforms to ISO 13356:2015. Implants for surgery -Ceramic materials based on yttria-stabilized tetragonal zirconia (Y-TZP) and the performance conforms to ISO 6872:2015/Amd1:2018, Dentistry: Ceramic Materials.
The document provided is a 510(k) premarket notification for a dental zirconia block. It describes the device, its indications for use, and a comparison to predicate devices, focusing on demonstrating substantial equivalence. However, it does not contain information about software or an AI-powered device, nor does it detail a study proving device performance against acceptance criteria in the way envisioned by the prompt's request for AI/diagnostic performance metrics.
Therefore, I cannot provide the requested information regarding acceptance criteria and performance study details for an AI-powered device. The document is about a material used in dentistry, not an AI software or diagnostic device that would involve ground truth, expert readers, or AUC.
Here's an explanation of why the requested information cannot be extracted from this document:
- Device Type: The device is "Perfit FS Dental Zirconia Fully Sintered Block," which is a material used for dental restorations. It is not an AI/ML-powered diagnostic tool.
- Performance Metrics: The performance criteria mentioned ("Flexural strength," "Solubility," "Radioactive uranium-238 active concentration") are physical and chemical properties of the material, not diagnostic or AI performance metrics like sensitivity, specificity, or AUC.
- Study Type: The studies conducted are "Non-clinical Test Conclusion" based on ISO standards (e.g., ISO 6872:2015 for ceramic materials, ISO 10993 for biocompatibility) to assess the material's properties and safety. These are not clinical studies for diagnostic accuracy or human-in-the-loop performance.
- Ground Truth/Experts/Adjudication: These concepts are relevant for diagnostic devices where a truth reference (e.g., pathology, clinical outcome) is established by experts to evaluate the device's accuracy. They are not applicable to the evaluation of a dental material's physical properties.
- Training/Test Set: These relate to a machine learning model's development and evaluation, which is not described in this document.
In summary, the provided document is a regulatory submission for a dental material, not an AI/ML-powered diagnostic device. Therefore, the specific questions about acceptance criteria for AI performance, sample size for test/training sets, expert qualifications, and adjudication methods are not addressed in this text.
§ 872.6660 Porcelain powder for clinical use.
(a)
Identification. Porcelain powder for clinical use is a device consisting of a mixture of kaolin, felspar, quartz, or other substances intended for use in the production of artificial teeth in fixed or removable dentures, of jacket crowns, facings, and veneers. The device is used in prosthetic dentistry by heating the powder mixture to a high temperature in an oven to produce a hard prosthesis with a glass-like finish.(b)
Classification. Class II.