510(k) Report

510(k) · Cleared

Cleared

Basis Flow II

K233859510(k) TraditionalCleared Mar 5, 202490-day reviewClass II21 CFR 872.3760

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

YAMAHACHI DENTAL MFG., Co. · EBI Resin, Denture, Relining, Repairing, Rebasing

Cleared on Mar 5, 2024 as substantially equivalent to K131036 (Yamahachi Dental Manufacturing Co., 2013) after a 90-day review. Its family tree reaches back 3 generations to 1991.

Decided
Mar 5, 2024
Review
90 days
Class
Class II
Product code
EBI
Recalls
None
Predicates
1

Its longest line of descent runs back 3 generations to K913655 (1991). 6 ancestors in all. No later device cites it as a predicate yet.

Other ancestors, by year cleared 2011: 1 other ancestor2008: 1 other ancestor1997: 1 other ancestorK913655 · Probase Hot and Probase Cold · Ivoclar North America, Inc. · 1991K102640 · Vertex Self Curing, Vertex Castavaria, Vertex Castapress · Vertex-Dental B.V. · 2011K131036 · Yamahachi Denture Base Resins · Yamahachi Dental Manufacturing Co. · 201319901995200020052010201520202025
  1. Root · 3 generations backK913655 Probase Hot and Probase ColdIvoclar North America, Inc. · 1991
  2. 2 generations backK102640 Vertex Self Curing, Vertex Castavaria, Vertex CastapressVertex-Dental B.V. · 2011
  3. 1 generation backK131036 Yamahachi Denture Base ResinsYamahachi Dental Manufacturing Co. · 2013
  4. This deviceK233859 Basis Flow IIYAMAHACHI DENTAL MFG., Co. · 2024
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−3K913655Probase Hot and Probase ColdIvoclar North America, Inc.1991—
−2K102640Vertex Self Curing, Vertex Castavaria, Vertex CastapressVertex-Dental B.V.2011—
−1K131036Yamahachi Denture Base ResinsYamahachi Dental Manufacturing Co.2013—
0 (this device)K233859Basis Flow IIYAMAHACHI DENTAL MFG., Co.2024—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199710
200810
201110
FIG. 1 — Lineage of K233859, 1991–2024Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in EBI? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new EBI device

  1. #1 K250617 Apex Flexscore 18.3 · 1 generation · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K131036Yamahachi Denture Base Resins
Summary page 5
…Repairing, Rebasing Resin. Regulation Number: 872.3760 Predicate Device Predicate # Predicate Trade Name Product Code K131036 Yamahachi Denture Base Resins –Basis FLOW EBI (Primary predicate)…
Yamahachi Dental Manufacturing Co.2013—

Also cleared against K131036: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 33 years and passes through 4 companies; a new generation was cleared every 10.6 years on median.
  • None of the 6 ancestors has a recall.
  • 1 other device also cites its predicate K131036.

How does its category compare?

All EBI devices

EBI Resin, Denture, Relining, Repairing, Rebasing: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.

FDA decisions per year · EBI

11in 2025

2007: 102008: 62009: 32010: 42011: 112012: 32013: 52014: 52015: 92016: 72017: 82018: 52019: 42020: 62021: 42022: 112023: 112024: 92025: 112026 (partial year): 7
2007high 11 (2011) · low 3 (2009)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · EBI

79in 2025

2007: 53 days median2008: 124 days median2009: 234 days median2010: 95 days median2011: 113 days median2012: 85 days median2013: 135 days median2014: 102 days median2015: 106 days median2016: 147 days median2017: 196 days median2018: 158 days median2019: 127 days median2020: 283 days median2021: 99 days median2022: 154 days median2023: 96 days median2024: 90 days median2025: 79 days median2026 (partial year): 87 days median
2007high 283 (2020) · low 53 (2007)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · EBI

2in 2022

2018: 22022: 2
2007high 2 (2018) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · EBI

34in 2025

2007: 72008: 22009: 52010: 42011: 62012: 92013: 52014: 92015: 82016: 92017: 22018: 22019: 102020: 82021: 252022: 22023: 132024: 12025: 34
2007high 34 (2025) · low 1 (2024)2025

MAUDE reports naming product code EBI, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
2007105307
2008612402
2009323405
201049504
20111111306
201238509
2013513505
2014510209
2015910608
2016714709
2017819602
2018515822
20194127010
2020628308
2021499025
20221115422
20231196013
202499001
20251179034
20267870—

What is it indicated for?

The BASIS FLOW II is intended for fabrication or repair of the denture base.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K233859: Basis Flow II.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K233859

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026