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510(k) Data Aggregation

    K Number
    K200682
    Device Name
    BZF-29
    Manufacturer
    Date Cleared
    2020-10-02

    (200 days)

    Product Code
    Regulation Number
    872.3200
    Panel
    Dental
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    BZF-29 is a two component (PRIMER and ADHESIVE), light-cured bonding agent suitable for:

    • Bonding of light cured composites and acid modified composites (compomers) to tooth structure.
    • Bonding of dual cured luting and core build up composites to tooth structure as long as these materials are light cured.
    • Intraoral repairs of porcelain fused to metal crowns and composite veneer crowns with metal backing.
    • . Intraoral repairs of all ceramic crowns (except zirconia and alumina), hybrid resin jacket crowns, CAD/CAM hybrid resin crowns and composites.
    • . Intraoral repairs of porcelain fused to zirconia crowns, porcelain fused to alumina crowns and full zirconia crowns.
    • . Treatment of hypersensitive teeth.
    Device Description

    BZF-29 is a two component, light-cured bonding agent to bond light-cured composite resins to tooth structure, composites, hybrid ceramics, ceramics and metal surfaces, and for the treatment of hypersensitive teeth.

    AI/ML Overview

    The provided document is a 510(k) premarket notification for a dental bonding agent, BZF-29, seeking substantial equivalence to a predicate device, G-Premio BOND. The document details performance bench tests and comparisons to establish this equivalency, but it does not describe a study involving human subjects or AI assistance. Instead, the "performance" described refers to material properties and bond strengths as mechanical measures.

    Therefore, many of the requested criteria regarding human readers, AI assistance, ground truth establishment methods for training, and detailed study specifics are not applicable or cannot be extracted from this document, as it focuses on demonstrating product characteristics through bench and biocompatibility testing against a predicate device.

    Here's an analysis of the available information:

    1. Table of Acceptance Criteria and Reported Device Performance

    PropertyAcceptance Criteria (Requirements)Predicate Device (G-Premio BOND) PerformanceSubject Device (BZF-29) Performance
    AppearanceShould be homogenous and free from foreign mattersNot explicitly stated for predicate; "Conformed" for overall judgmentConformed
    Curing propertyShould be cured and formed filmNot explicitly stated for predicate; "Conformed" for overall judgmentConformed
    Application characteristicsShould be formed even and homogenous coat.Not explicitly stated for predicate; "Conformed" for overall judgmentConformed
    ColorYellow opaque for PRIMER, Yellow for ADHESIVENot explicitly stated for predicate; "Conformed" for overall judgmentYellow opaque for PRIMER, Yellow for ADHESIVE
    pH (only for PRIMER)1.3 to 1.8Not explicitly stated for predicate; "Conformed" for overall judgment1.3 to 1.8 (within range)
    Refraction index1.4080 to 1.4110 for PRIMER, 1.4905 to 1.4935 for ADHESIVENot explicitly stated for predicate; "Conformed" for overall judgment1.4080 to 1.4110 for PRIMER, 1.4905 to 1.4935 for ADHESIVE (within range)
    Bond strength to tooth structure (enamel)>10MPa29.6 (±2.4) MPa40.6 (±6.3) MPa
    Bond strength to tooth structure (dentin)>10MPa34.2 (±2.5) MPa47.1 (±8.7) MPa
    Bond strength to metal (precious)>10MPa21.3 (±4.3) MPa29.9 (±9.7) MPa
    Bond strength to metal (non-precious)>10MPa28.8 (±1.5) MPa32.5 (±3.8) MPa
    Bond strength to ceramic (porcelain)>10MPa25.8 (±2.3) MPa23.3 (±4.3) MPa
    Bond strength to composite>10MPa34.8 (±2.0) MPa30.7 (±2.2) MPa
    Sealing property of dentin tubulesShould be sealed dentin tubules when observed using SEMConformedConformed
    Biocompatibility - CytotoxicityNot considered to have a cytotoxic effect (Based on ISO 10993-5)ConformedConformed (acceptable device from the biological evaluation result)
    Biocompatibility - SensitivityMeets requirements of ISO 10993-10 (Sensitization)ConformedConformed (meets requirements of ISO 10993-10)
    Biocompatibility - IrritationNon-irritant to buccal tissues (Based on ISO 10993-10)Conformed (test article extracts are considered non-irritants to buccal tissues)Conformed (acceptable device from the biological evaluation result for irritation)

    Notes on the Table:

    • For "Appearance," "Curing property," "Application characteristics," "Color," "pH," and "Refraction index," the document states that the applicant device complies with all the requirements of 1AB-1500-3-10706 (Company specification) and then lists the specific requirements. The predicate device's performance against these specific criteria is not individually detailed but is implied to be "Conformed" for overall comparison purposes to establish substantial equivalence.
    • The acceptance criteria for bond strength are stated as ">10MPa" for all categories.

    2. Sample size used for the test set and the data provenance
    The document does not explicitly state the sample size (number of teeth/samples tested) for each specific bench test (e.g., bond strength measurements). It refers to the results as statistical averages with standard deviations, implying multiple samples were used for each measurement.
    The data provenance is not specified beyond "bench tests" conducted by the manufacturer, presumably in a laboratory setting. There is no information on country of origin or whether it was retrospective or prospective, as these terms are typically used for clinical studies involving patients, which is not the case here.

    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
    This is not applicable. The "ground truth" for the test set is established by objective physical and chemical measurements (e.g., MPa for bond strength, pH values, visual checks for homogeneity, SEM for dentin tubules) and adherence to ISO standards for biocompatibility, not by expert consensus or interpretation of images.

    4. Adjudication method for the test set
    Not applicable. The tests are based on objective, quantifiable measurements against pre-defined specifications and ISO standards, not on subjective assessment requiring adjudication among experts.

    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
    Not applicable. This is a material science study of a dental bonding agent, not a diagnostic device involving human readers or AI assistance.

    6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
    Not applicable. This is a material science study, not an AI algorithm.

    7. The type of ground truth used
    The ground truth is based on:

    • Company specifications (1AB-1500-3-10706): For properties like appearance, curing, application characteristics, color, pH, and refraction index.
    • Quantitative measurements: For bond strength (measured in MPa).
    • Microscopic observation: For sealing property of dentin tubules (using SEM).
    • International Standards (ISO 10993 series): For biocompatibility, specifically ISO 10993-5 (cytotoxicity) and ISO 10993-10 (sensitivity, irritation).

    8. The sample size for the training set
    Not applicable. This document describes performance validation against a predicate device and established standards, not the training of a machine learning model.

    9. How the ground truth for the training set was established
    Not applicable, as no training set for an algorithm is mentioned or implied.

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