510(k) Report

510(k) · Cleared

Cleared

Hydro-Cast Acrylic Varnish, Model 78125

K991161510(k) TraditionalCleared Apr 29, 199922-day reviewClass I21 CFR 872.6640

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

Kay See Dental Mfg. Co. · EIA Unit, Operative Dental

Cleared on Apr 29, 1999 as substantially equivalent to K892452 (Kulzer, Inc., 1989) after a 22-day review. Its family tree reaches back 1 generation to 1989.

Decided
Apr 29, 1999
Review
22 days
Class
Class I
Product code
EIA
Recalls
None
Predicates
1

Its longest line of descent runs back 1 generation to K892452 (1989). No later device cites it as a predicate yet.

K892452 · Palaseal (R) · Kulzer, Inc. · 19891985199019952000
K892452 · Palaseal (R) · Kulzer, Inc. · 19890
  1. Root · 1 generation backK892452 Palaseal (R)Kulzer, Inc. · 1989
  2. This deviceK991161 Hydro-Cast Acrylic Varnish, Model 78125Kay See Dental Mfg. Co. · 1999
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K892452Palaseal (R)Kulzer, Inc.1989—
0 (this device)K991161Hydro-Cast Acrylic Varnish, Model 78125Kay See Dental Mfg. Co.1999—
FIG. 1 — Lineage of K991161, 1989–1999Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

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 EIA? 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 EIA device

  1. #1 K231845 Dental unit Model: Marescore 14.4 · 6 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

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
*K892452Palaseal (R)
Summary page 3
…lic Varnish Common name - Acrylic Varnish Classification Name - Resin, Denture, Relining, Repairing, Rebasing (872.3760) Substantial equivalence claimed to - PalaSeal K892452 Description of the device. Acrylic varnish. Intended use of device Is applied to cured materials such as dentures, partial dent…
Kulzer, Inc.1989—

Also cleared against K892452: 3 other devices →

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?

  • Its one ancestor has no recall.
  • 3 other devices also cite its predicate K892452.

How does its category compare?

All EIA devices

EIA Unit, Operative Dental: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · EIA

7in 2025

2007: 32008: 62009: 32010: 32011: 52012: 22013: 22014: 22015: 72016: 42017: 12018: 22019: 22020: 12022: 32023: 32024: 32025: 72026 (partial year): 2
2007high 7 (2015) · low 0 (2021)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · EIA

178in 2025

2007: 90 days median2008: 72 days median2009: 109 days median2010: 270 days median2011: 150 days median2015: 214 days median2016: 182 days median2022: 265 days median2023: 686 days median2024: 251 days median2025: 178 days median
2007high 686 (2023) · low 72 (2008)2026

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

Recalls per year · EIA

1in 2013

2012: 12013: 1
2007high 1 (2012) · low 0 (2007)2026

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

Adverse event reports per year · EIA

47in 2025

2010: 22011: 32012: 72013: 62014: 2552015: 4522016: 1512017: 642018: 732019: 682020: 482021: 492022: 442023: 532024: 532025: 47
2007high 452 (2015) · low 0 (2007)2025

MAUDE reports naming product code EIA, 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
200739000
200867200
2009310900
2010327002
2011515003
20122—17
20132—16
20142—0255
201572140452
201641820151
20171—064
20182—073
20192—068
20201—048
20210—049
20223265044
20233686053
20243251053
20257178047
20262—0—

What is it indicated for?

Hydro-Cast Acrylic Varnish is applied to cured materials such as dentures, partial

dentures, dental splints and temporary crowns/bridges for the purpose of sealing the

acrylic.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K991161: Hydro-Cast Acrylic Varnish, Model 78125.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K991161

Report an extraction error

Tell us what is wrong; we check it against the FDA summary.

Are you the manufacturer?

Send a correction or an update to this page, for example a newer model or a public statement about a recall.

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