510(k) · Cleared
ClearedKerator
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Kj Meditech Co., Ltd. · NHA Abutment, Implant, Dental, Endosseous
Cleared on Aug 8, 2012 as substantially equivalent to K994257 (Zest Anchors, Inc., 2000) and 9 other predicates after a 317-day review. Its family tree reaches back 7 generations to 1990. 3 later devices descend from it.
- Decided
- Aug 8, 2012
- Review
- 317 days
- Class
- Class II
- Product code
- NHA
- Recalls
- None
- Predicates
- 10
Its longest line of descent runs back 7 generations to K894595 (1990). 46 ancestors in all, the oldest K894844 (1990). 3 later devices descend from it, 3 citing it directly.
- Root · 7 generations backK894595 Bonefit R Screw ImplantsInstitut Straumann AG · 1990
- 6 generations backK984104 Iti Dental Implant SystemStraumann USA · 1999 · Recalled
- 5 generations backK992937 Dental ImplantNobel Biocare Uas, Inc. · 2000 · Recalled
- 4 generations backK013067 Frialoc Dental Implant SystemFriadent GmbH · 2002
- 3 generations backK021318 Xive Dental Implant SystemFriadent GmbH · 2002
- 2 generations backK032158 Xive Dental Implant System MultipleFriadent GmbH · 2003
- 1 generation backK033984 Straumann Dental Implant SystemInstitut Straumann AG · 2004
- This deviceK112787 KeratorKj Meditech Co., Ltd. · 2012
- Descendant · cites it directly · 0 of its ownK241183 ISO AbutmentSeum Medi Co., Ltd. · 2025
- Descendant · cites it directly · 0 of its ownK173141 CSM Submerged3-L Implant SystemCsm Implant · 2018
- Descendant · cites it directly · 0 of its ownK132144 KeratorLK Consulting Group USA, Inc. · 2014
Most influential descendants
Showing 3 of 3 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −7 | K894595 | Bonefit R Screw Implants | Institut Straumann AG | 1990 | — |
| −6 | K984104 | Iti Dental Implant System | Straumann USA | 1999 | 1 |
| −5 | K992937 | Dental Implant | Nobel Biocare Uas, Inc. | 2000 | 1 |
| −4 | K013067 | Frialoc Dental Implant System | Friadent GmbH | 2002 | — |
| −3 | K021318 | Xive Dental Implant System | Friadent GmbH | 2002 | — |
| −2 | K032158 | Xive Dental Implant System Multiple | Friadent GmbH | 2003 | — |
| −1 | K033984 | Straumann Dental Implant System | Institut Straumann AG | 2004 | — |
| 0 (this device) | K112787 | Kerator | Kj Meditech Co., Ltd. | 2012 | — |
| +1 | K241183 | ISO Abutment | Seum Medi Co., Ltd. | 2025 | — |
| +1 | K173141 | CSM Submerged3-L Implant System | Csm Implant | 2018 | — |
| +1 | K132144 | Kerator | LK Consulting Group USA, Inc. | 2014 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1990 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 0 |
| 2003 | 4 | 0 |
| 2005 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2014 | 1 | 0 |
| 2018 | 1 | 0 |
| 2025 | 1 | 0 |
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 NHA? 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 NHA device
- #1 K222288 DESS Dental Smart Solutionsscore 30.6 · 19 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (10)
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K994257 | Locator Implant AnchorSummary page 1…utment Product Code: NHA Classification regulation: 21CFR872.3630 4. Predicate Device: Locator Implant Anchor by Zest Anchors, Inc. (K994257) Branemark System 3.3mm Fixture by NOBELPHARMA USA, INC.(K944683) Branemark System 4.00 mum Fixture by NOBELP… | 2000 |
| * | K944683 | Branemark System 3.3MM FixtureSummary page 1…FR872.3630 4. Predicate Device: Locator Implant Anchor by Zest Anchors, Inc. (K994257) Branemark System 3.3mm Fixture by NOBELPHARMA USA, INC.(K944683) Branemark System 4.00 mum Fixture by NOBELPHARMA USA, INC.(K925764) Branemark System 5.0 X W4rm Fixture by N… | 1995 |
| * | K925764 | Branemark System 4.00 MM FixtureSummary page 1…t Anchors, Inc. (K994257) Branemark System 3.3mm Fixture by NOBELPHARMA USA, INC.(K944683) Branemark System 4.00 mum Fixture by NOBELPHARMA USA, INC.(K925764) Branemark System 5.0 X W4rm Fixture by NOBELPHARMA USA, INC.(K92576 1) Astratech Implant System by ASTRA TEC… | 1993 |
| * | K925761 | Branemark System 5.0 X 14MM FixtureSummary page 1…A USA, INC.(K944683) Branemark System 4.00 mum Fixture by NOBELPHARMA USA, INC.(K925764) Branemark System 5.0 X W4rm Fixture by NOBELPHARMA USA, INC.(K92576 1) Astratech Implant System by ASTRA TECH AB (K091239) Replace Tiunite Endosseous Implant by NOBEL BIOCARE UAS… | 1993 |
| * | K091239 | Astra Tech Implant SystemSummary page 1…e by NOBELPHARMA USA, INC.(K925764) Branemark System 5.0 X W4rm Fixture by NOBELPHARMA USA, INC.(K92576 1) Astratech Implant System by ASTRA TECH AB (K091239) Replace Tiunite Endosseous Implant by NOBEL BIOCARE UAS INC (K023 113) 4.5.* 6.0mm Dental Implant and 6.0*6.… | 2009 |
| * | K023113 | Replace Tiunite Endosseous ImplantSummary page 1…e by NOBELPHARMA USA, INC.(K92576 1) Astratech Implant System by ASTRA TECH AB (K091239) Replace Tiunite Endosseous Implant by NOBEL BIOCARE UAS INC (K023 113) 4.5.* 6.0mm Dental Implant and 6.0*6.0 mm Dental Implant by BICON, INC.( K050712) Bicon Dental Implant Syste… | 2002 |
| * | K050712 | 4.5.* 6.0MM Dental Implant and 6.0*6.0 MM Dental ImplantSummary page 1…1239) Replace Tiunite Endosseous Implant by NOBEL BIOCARE UAS INC (K023 113) 4.5.* 6.0mm Dental Implant and 6.0*6.0 mm Dental Implant by BICON, INC.( K050712) Bicon Dental Implant System 3.0mm Bicon Dental Implant (K101849) 51 0(k) Submission.… | 2005 |
| * | K101849 | Bicon Dental Implant System 3.0MM Bicon Dental ImplantSummary page 1…(K023 113) 4.5.* 6.0mm Dental Implant and 6.0*6.0 mm Dental Implant by BICON, INC.( K050712) Bicon Dental Implant System 3.0mm Bicon Dental Implant (K101849) 51 0(k) Submission. 5 10(k) summary. 1/3 page Parago… | 2010 |
| * | K953101 | Paragon Implant System | 1995 |
| * | K033984 | Straumann Dental Implant SystemSummary page 2…summary. 1/3 page Paragon Implant System by CORE-VENT BlO-ENOINEERINQ INC. (K953 I0I) ITI Dental Implant System by INSTITUT STRAUMANN AG (K033984) 5. Description: The devices covered in this submission are abutments which are placed into the dental imp… | 2004 |
What descends from it? (3)
3 later devices cite it directly; ranked here by how many devices descend from each in turn.
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 22 years and passes through 5 companies; a new generation was cleared every 1.1 years on median.
- 4 of the 46 ancestors have a recall of any class.
- Of its descendants, K241183 (Seum Medi Co., Ltd., 2025) has gone furthest, with 0 descendants of its own.
- 6 other devices also cite its predicate K994257.
How does its category compare?
All NHA devicesNHA Abutment, Implant, Dental, Endosseous: FDA decisions, review times, recalls and adverse event reports over 20 years. 2012, this device’s year, is highlighted.
FDA decisions per year · NHA
40in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NHA
147in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NHA
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · NHA
838in 2025
MAUDE reports naming product code NHA, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 38 | 91 | 1 | 1 |
| 2008 | 31 | 90 | 2 | 8 |
| 2009 | 30 | 95 | 0 | 30 |
| 2010 | 19 | 162 | 0 | 61 |
| 2011 | 31 | 130 | 5 | 56 |
| 2012 | 25 | 171 | 1 | 5 |
| 2013 | 22 | 184 | 1 | 143 |
| 2014 | 27 | 160 | 0 | 146 |
| 2015 | 29 | 151 | 1 | 858 |
| 2016 | 38 | 202 | 36 | 314 |
| 2017 | 31 | 188 | 2 | 577 |
| 2018 | 31 | 200 | 1 | 591 |
| 2019 | 28 | 160 | 0 | 530 |
| 2020 | 38 | 153 | 7 | 458 |
| 2021 | 29 | 211 | 0 | 546 |
| 2022 | 33 | 142 | 0 | 497 |
| 2023 | 51 | 147 | 3 | 618 |
| 2024 | 43 | 158 | 0 | 635 |
| 2025 | 40 | 147 | 1 | 838 |
| 2026 | 23 | 169 | 3 | — |
What is it indicated for?
The Kerator is appropriate for use with overdentures or partial dentures retained in whole or in part by endosseoius implants in the mandible or maxilla. The Kerator is compatible with the following fixtures. Kerator Model No. — Fixture Description — Manufacturer B331 - B337 — Branemark 3.3 Type — NOBELPHARMA USA, INC. B401 - B407 — Branemark 4.0 Type — NOBELPHARMA USA, INC. B501 - B507 — Branemark 5.0 Type — NOBELPHARMA USA, INC. AS351 - AS357 — Astra…
Read the full statement (194 words)
The Kerator is appropriate for use with overdentures or partial dentures retained in whole or in part by endosseoius implants in the mandible or maxilla.
The Kerator is compatible with the following fixtures.
Kerator Model No. — Fixture Description — Manufacturer
B331 - B337 — Branemark 3.3 Type — NOBELPHARMA USA, INC.
B401 - B407 — Branemark 4.0 Type — NOBELPHARMA USA, INC.
B501 - B507 — Branemark 5.0 Type — NOBELPHARMA USA, INC.
AS351 - AS357 — Astra 3.5 Type — ASTRA TECH AB
AS401 - AS407 — Astra 4.0 Type — ASTRA TECH AB
G400 - G406 — Astra 4.0 Type — ASTRA TECH AB
SRS350 - SRS356 — Replace 3.5 Type — Nobel Biocare USA, Inc.
SRS450 - SRS457 — Replace 4.3 Type — Nobel Biocare USA, Inc.
SRS500 - SRS506 — Replace 5.0 Type — Nobel Biocare USA, Inc.
BC201 - BC207 — Bicon 2.0 Type — BICON, INC.
BC301 - BC307 — Bicon 3.0 Type — BICON, INC.
PA350 - PA356 — Paragon 3.5 Type — CORE-VENT ENGINEERING, INC.
PA450 - PA456 — Paragon 4.5 Type — CORE-VENT ENGINEERING, INC.
T40 — ITI 4.0 Type — INSTITUT STRAUMANN AG
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K112787 · printed Nov 6, 2026
Cite this page
510(k) Report. “K112787: Kerator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K112787
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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