K Number
K250778
Device Name
Sil-Flow
Date Cleared
2025-05-23

(70 days)

Product Code
Regulation Number
872.3690
Panel
DE
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

Sil-Flow is indicated for
[A] Temporary inlay and onlay treatments of the cavity
[B] Sealing of openings for implant screws
[C] Relining material for temporary crowns and bridges
[D] Block-out material for retentive areas in the dental arch, e.g. before taking impressions
[E] Covering of the gingival margin
[F] Fixing of resin matrix during filling placement
[G] Temporary filling of cavities

Device Description

Sil-Flow is a flowable light-cured temporary filling material used for filling and sealing.

AI/ML Overview

The provided FDA Premarket Notification (510(k)) for the Sil-Flow device is for a Tooth Shade Resin Material and NOT an AI/Software as a Medical Device (SaMD) product. Therefore, the information typically found in such a submission regarding AI device performance, such as:

  • Acceptance Criteria for AI performance metrics (e.g., sensitivity, specificity, AUC)
  • Study design for AI performance evaluation (e.g., standalone, human-in-the-loop, MRMC)
  • Sample size and data provenance for AI test sets
  • Ground truth establishment (number/qualifications of experts, adjudication methods)
  • Training set details for AI models
  • Effect size of AI assistance for human readers

are not present in this document.

This 510(k) submission focuses on demonstrating substantial equivalence to a predicate device (Clip Flow) based on physical and chemical properties, biocompatibility, and intended use for a dental material.

Here's a breakdown of the requested information based on the provided document, highlighting what is present and what is absent from the perspective of an AI/SaMD device:


Acceptance Criteria and Study Proving Device Meets Criteria (for Dental Material)

The acceptance criteria and supporting study for Sil-Flow relate to its physical, chemical, and biological properties as a tooth shade resin material, demonstrating its safety and performance for its indicated uses.

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

Test ParameterAcceptance Criteria (from ISO 4049 Protocol)Reported Device PerformanceComments
Physical/Chemical Properties
Visual Appearance(Implied to meet standard)Met criteria"All test results met the criteria in the standard."
Depth of Cure (mm)Not explicitly stated (but referenced ISO 4049)3.1 mmPredicate device (Clip Flow) reported 11mm, suggesting a difference. However, "Both the subject devices and the predicate device have physical parameters which meet the requirements of the relevant ISO standards," implying 3.1mm is acceptable per the standard for Sil-Flow.
Shor Hardness DNot explicitly stated52 Shor DPredicate (Clip Flow) reported 90 Shore A. Note the difference in Shore scale (D vs. A), making direct comparison difficult without a conversion or further context, but still stated to meet relevant ISO standard.
Sensitivity to Ambient Light(Implied to meet standard)Met criteria"All test results met the criteria in the standard."
Water Sorption (µg/mm³)

§ 872.3690 Tooth shade resin material.

(a)
Identification. Tooth shade resin material is a device composed of materials such as bisphenol-A glycidyl methacrylate (Bis-GMA) intended to restore carious lesions or structural defects in teeth.(b)
Classification. Class II.