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510(k) Data Aggregation

    K Number
    K021947
    Device Name
    CERANUM 87
    Manufacturer
    Date Cleared
    2002-08-26

    (74 days)

    Product Code
    Regulation Number
    872.3060
    Panel
    Dental
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    CERANUM 87 is intended for manufacturing:

    • -Inlay / Onlays
    • -Crowns
    • Bridges -
    • -Implant superstructures
    Device Description

    CERANUM 87 is a High Noble, Micro-fine, Yellow, Gold based alloy to be used for inlays, onlays, single crowns, bridge, implant superstructures and substrate for medium expansion with lower fusing porcelains and indirect restorative composites. CERANUM 87 is a high gold ceramic alloy, which heightens the porcelain esthetics of the restoration and provides strength, durability and color of gold.

    AI/ML Overview

    The provided document, KO21947, is a 510(k) premarket notification for a dental casting alloy named CERANUM 87. This type of submission focuses on demonstrating substantial equivalence to a legally marketed predicate device rather than conducting extensive clinical studies to evaluate device performance against specific acceptance criteria in the same way a diagnostic AI device would.

    Therefore, many of the requested elements for a clinical study on AI device performance are not applicable to this document. The document describes a comparison of physical and chemical properties of a dental alloy, not a clinical study involving human patients or complex performance metrics for a diagnostic device.

    Here's a breakdown based on the provided document and the nature of a 510(k) for a dental alloy:

    1. A table of acceptance criteria and the reported device performance

      There isn't a direct "acceptance criteria" table for a diagnostic AI device's performance in the clinical sense. Instead, the "acceptance criteria" can be inferred from the comparison of the CERANUM 87 alloy's properties to those of the predicate device, DEGUDENT GS. The implicit acceptance criterion is that the new device's properties are "substantially equivalent" to the predicate.

    PropertyAcceptance Criteria (Predicate: Degudent GS)Reported Device Performance (Ceranum 87)
    Composition (Weight)
    Au (%)86.0086.95
    Pt (%)9.708.87
    Pd (%)2.201.15
    In (%)2.01.0
    Physical/Mechanical Properties
    Melting Point Range (°F)1,949-2,1742,008-2,079
    Hardness (Vickers)155150
    Yield Strength (psi)58,00053,600
    Elongation (%)8.09.0
    CTE (x10-6/°C)14.413.4
    Density (g/cm3)18.518.6
    *Implicit Acceptance Criterion*: The values for CERANUM 87 are considered "almost identical" or within a range that does not affect safety or effectiveness, leading to a determination of substantial equivalence. The document states: "The main elements and their concentration are almost identical." and "Despite minor differences in the materials, we believe that CERAUM 87 is a substantially equivalent to DEGUSSA AG's DEGUDENT GS. These changes do not affect safety or effectiveness."
    

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

    *   **N/A.** This is a comparison of alloy properties based on standard test methods (ANSI/ADA 5 and ISO 9693), not a clinical study with a patient test set. The "samples" would refer to tested batches of the alloy, not a patient population. Data provenance (country of origin, retrospective/prospective) is not mentioned as it's not relevant for this type of submission.
    

    3. 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)

    *   **N/A.** Ground truth in the context of diagnostic performance is not applicable here. The "ground truth" for material properties is established by the results of the standardized physical and mechanical tests themselves.
    

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

    *   **N/A.** No adjudication method is described or required for this type of material property comparison.
    

    5. 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

    *   **N/A.** This is not a diagnostic AI device, so no MRMC study or assessment of human reader improvement is relevant.
    

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

    *   **N/A.** Not an AI algorithm.
    

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

    *   **Material Property Standards/Test Results.** The "ground truth" related to the device's characteristics are the quantitative measurements of its physical and mechanical properties, as determined by applying recognized industry standards like ANSI/ADA 5 and ISO 9693.
    

    8. The sample size for the training set

    *   **N/A.** This is not an AI/machine learning device, so there is no training set.
    

    9. How the ground truth for the training set was established

    *   **N/A.** Not an AI/machine learning device.
    
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