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510(k) Data Aggregation

    K Number
    K230487
    Date Cleared
    2023-07-03

    (130 days)

    Product Code
    Regulation Number
    872.6660
    Reference & Predicate Devices
    Why did this record match?
    Reference Devices :

    K222513

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    Dental Lithium Disilicate Glass-Ceramic is available using CAD/CAM and hot pressing techniques for the preparation of full ceramic crowns, inlays, onlays, veneer and full ceramic 3-unit anterior bridges.

    Device Description

    Dental Lithium Disilicate Glass-Ceramic is a lithium disilicate ceramic to be supplied in the form of cuboid and cylinder. Dental Lithium Disilicate Glass-Ceramic can be fabricated using CAD/CAM and hot pressing technologies. The device is a glass type material used for aesthetic purposes of full ceramic crowns, inlays, onlays, veneer and full ceramic 3-unit anterior bridges. The ceramics material is composed of SiO2, Li2O, K2O, Al2O3, P2O5, ZrO2 and other oxides. It contains inorganic pigments. The inorganic pigments generate the color on the restorations, after sintering at dental labs, that matches natural color of patient's teeth. The performance of the device conforms to ISO 6872:2015 Dentistry: Ceramic Materials. It is a single-use device, and provided non-sterile.

    AI/ML Overview

    This document is a 510(k) summary for a dental material, not an AI/ML medical device. Therefore, the questions related to AI/ML device performance, such as sample size for test sets, data provenance, ground truth establishment, expert adjudication, MRMC studies, and standalone performance, are not applicable.

    The document describes the acceptance criteria for the Dental Lithium Disilicate Glass-Ceramic device and the non-clinical testing performed to demonstrate its compliance.

    Here's a breakdown of the requested information based on the provided text:

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

    The document provides a comparison table (Table 1) that includes several parameters which act as acceptance criteria derived primarily from the ISO 6872:2015 standard for ceramic materials. The "New Device" column shows the reported device performance.

    ParametersAcceptance Criteria (New Device Performance)Predicate Device A (IPS E.MAX CAD)Predicate Device B (Glass Ceramics)Remarks (Comparison to Predicates)
    Product CodeEIHEIHEIHSame
    Regulation No.21 CFR 872.666021 CFR 872.666021 CFR 872.6660Same
    Class222Same
    Intended useFor preparation of full ceramic crowns, inlays, onlays, veneer and full ceramic 3-unit anterior bridges.Similar indications, specifically for CAD/CAM machinable glass ceramic.Similar indications, including veneers, inlay/onlay, partial crowns, anterior/posterior crowns (hot press or CAD/CAM).Similar
    Material$SiO_2$, $Li_2O$, $K_2O$, $Al_2O_3$, $P_2O_5$, $ZrO_2$ and other oxides$SiO_2$, $Li_2O$, $K_2O$, $P_2O_5$, $ZrO_2$, $ZnO$ and other oxides$SiO_2$, $Li_2O$, $K_2O$, $Al_2O_3$ and other oxidesSimilar
    Environment of usePrescription UsePrescription UsePrescription UseSame
    DesignCuboid, CylinderBlockBlockSimilar
    Color (Translucency)HT, MT, LT, MO, HOHT, LT, MOVarious (not publicly available for Predicate B)Similar (New device offers more options than Predicate A)
    Color (Shades)HT/MT/LT: 16 A-D and 4 Bleach; MO: 5 MO 0 – MO 4; HO: 3 HO 0– HO 2HT/LT: 16 A-D and 4 Bleach; MO: 5 MO 0 – MO 4Not publicly availableSimilar
    Crystallization StateCuboid: Partially crystallized; Cylinder: Fully crystallizedPartially crystallizedNot specified for Predicate BSimilar (Predicate A has only partially crystallized)
    SterileNon-sterileNon-sterileNon-sterileSame
    Single UseYesYesYesSame
    Types, Class (ISO 6872:2015)Type II, Class 3Type II, Class 3Type II, Class 2Similar (New device same as Predicate A, different from Predicate B)
    Freedom from Extraneous materialsFree from extraneous materialsFree from extraneous materialsNot ReportedSame
    Flexural Strength$\geq300MPa$$\geq300MPa$$\geq100MPa$Same (As Predicate A, superior to Predicate B)
    Linear thermal Expansion coefficient$(9.8±0.5) x 10^{-6}/K$$(10.5±0.5) x 10^{-6}/K$$(11±0.5) x 10^{-6}/K$Similar
    Glass Transition Temperature$495±20°C$Not Reported$520±20°C$Similar
    Chemical Solubility$
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