510(k) · Cleared
ClearedTS Abutment System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Osstem Implant Co., Ltd. · NHA Abutment, Implant, Dental, Endosseous
Cleared on Feb 20, 2024 as substantially equivalent to K182091 (Osstem Implant Co., Ltd., 2019) and 3 other predicates after a 145-day review. Its family tree reaches back 15 generations to 1990. 2 later devices descend from it.
- Decided
- Feb 20, 2024
- Review
- 145 days
- Class
- Class II
- Product code
- NHA
- Recalls
- None
- Predicates
- 4
Its longest line of descent runs back 15 generations to K894595 (1990). 231 ancestors in all, the oldest K781060 (1978). 2 later devices descend from it, 2 citing it directly.
- Root · 15 generations backK894595 Bonefit R Screw ImplantsInstitut Straumann AG · 1990
- 11 generations between
- 3 generations backK132067 Multi Angled Abutment SystemHiossen, Inc. · 2013
- 2 generations backK160670 ET US SS Prosthetic systemOsstem Implant Co., Ltd. · 2017
- 1 generation backK182091 Osstem Abutment SystemOsstem Implant Co., Ltd. · 2019
- This deviceK233194 TS Abutment SystemOsstem Implant Co., Ltd. · 2024
- Descendant · cites it directly · 0 of its ownK251434 Healing Abutment SystemOsstem Implant Co., Ltd. · 2026
- Descendant · cites it directly · 0 of its ownK251427 EK Multi Angled 30 AbutmentHiossen, Inc. · 2026
Show all 15 generations
- Root · 15 generations backK894595 Bonefit R Screw ImplantsInstitut Straumann AG · 1990
- 14 generations backK984104 Iti Dental Implant SystemStraumann USA · 1999 · Recalled
- 13 generations backK993595 Nobel Biocare's Modified Surface Implant (Intended for Immediate…Nobel Biocare Uas, Inc. · 2000
- 12 generations backK011879 3A Dental Implant SystemOsseco Biosource, Ltd. · 2002
- 11 generations backK051576 Avana Dental Implant SystemOsstem Co., Ltd. · 2005
- 10 generations backK062051 SS SystemOsstem Implant Co., Ltd. · 2006
- 9 generations backK063861 GS SystemOsstem Implant Co., Ltd. · 2007
- 8 generations backK073247 US/SS/GS SystemOsstem Implant Co., Ltd. · 2008
- 7 generations backK081575 HU/HS/HG Prosthetic SystemOsstem Implant Co., Ltd. · 2008
- 6 generations backK100245 HS/HG Prosthetic SystemOsstem Implant Co., Ltd. · 2010
- 5 generations backK110308 Prosthetic SystemOsstem Implant Co., Ltd. · 2011
- 4 generations backK123755 Multi Angled AbutmentOsstem Implant Co., Ltd. · 2013
- 3 generations backK132067 Multi Angled Abutment SystemHiossen, Inc. · 2013
- 2 generations backK160670 ET US SS Prosthetic systemOsstem Implant Co., Ltd. · 2017
- 1 generation backK182091 Osstem Abutment SystemOsstem Implant Co., Ltd. · 2019
- This deviceK233194 TS Abutment SystemOsstem Implant Co., Ltd. · 2024
Most influential descendants
Showing 2 of 2 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −15 | K894595 | Bonefit R Screw Implants | Institut Straumann AG | 1990 | — |
| −14 | K984104 | Iti Dental Implant System | Straumann USA | 1999 | 1 |
| −13 | K993595 | Nobel Biocare's Modified Surface Implant (Intended for Immediate Loading Upon… | Nobel Biocare Uas, Inc. | 2000 | — |
| −12 | K011879 | 3A Dental Implant System | Osseco Biosource, Ltd. | 2002 | — |
| −11 | K051576 | Avana Dental Implant System | Osstem Co., Ltd. | 2005 | — |
| −10 | K062051 | SS System | Osstem Implant Co., Ltd. | 2006 | — |
| −9 | K063861 | GS System | Osstem Implant Co., Ltd. | 2007 | — |
| −8 | K073247 | US/SS/GS System | Osstem Implant Co., Ltd. | 2008 | — |
| −7 | K081575 | HU/HS/HG Prosthetic System | Osstem Implant Co., Ltd. | 2008 | — |
| −6 | K100245 | HS/HG Prosthetic System | Osstem Implant Co., Ltd. | 2010 | — |
| −5 | K110308 | Prosthetic System | Osstem Implant Co., Ltd. | 2011 | — |
| −4 | K123755 | Multi Angled Abutment | Osstem Implant Co., Ltd. | 2013 | — |
| −3 | K132067 | Multi Angled Abutment System | Hiossen, Inc. | 2013 | — |
| −2 | K160670 | ET US SS Prosthetic system | Osstem Implant Co., Ltd. | 2017 | — |
| −1 | K182091 | Osstem Abutment System | Osstem Implant Co., Ltd. | 2019 | — |
| 0 (this device) | K233194 | TS Abutment System | Osstem Implant Co., Ltd. | 2024 | — |
| +1 | K251434 | Healing Abutment System | Osstem Implant Co., Ltd. | 2026 | — |
| +1 | K251427 | EK Multi Angled 30 Abutment | Hiossen, Inc. | 2026 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1978 | 1 | 0 |
| 1982 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 12 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 14 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 10 | 0 |
| 2000 | 5 | 0 |
| 2001 | 10 | 0 |
| 2002 | 17 | 0 |
| 2003 | 13 | 0 |
| 2004 | 10 | 0 |
| 2005 | 7 | 0 |
| 2006 | 8 | 0 |
| 2007 | 12 | 0 |
| 2008 | 10 | 0 |
| 2009 | 5 | 0 |
| 2010 | 8 | 0 |
| 2011 | 6 | 0 |
| 2012 | 5 | 0 |
| 2013 | 1 | 0 |
| 2014 | 2 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2026 | 2 | 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? (4)
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 |
|---|---|---|---|
| * | K182091 | Osstem Abutment SystemSummary page 5…630 - Devce Classification : Class II - Classification Product Code : NHA 3. Predicated Device Primary Predicate K182091 Osstem Abutment System Reference Device K221684 Osstem Abutment System K16363… | 2019 |
| * | K161689 | OSSTEM Implant System - AbutmentSummary page 5…Osstem Abutment System Reference Device K221684 Osstem Abutment System K163634 External Hex Implants K161689 OSSTEM Implant System - Abutment K161604 OSSTEM Implant System K120847… | 2017 |
| * | K120847 | ET/SS Implant SystemSummary page 5…3634 External Hex Implants K161689 OSSTEM Implant System - Abutment K161604 OSSTEM Implant System K120847 ET/SS IMPLANT SYSTEM 4. Indication for use The OSSTEM Abutment system is intended for use with a dental… | 2012 |
| * | K161604 | OSSTEM Implant SystemSummary page 5…684 Osstem Abutment System K163634 External Hex Implants K161689 OSSTEM Implant System - Abutment K161604 OSSTEM Implant System K120847 ET/SS IMPLANT SYSTEM 4. Indication for use The OS… | 2016 |
| † | K221684 | Osstem Abutment System | 2022 |
| † | K163634 | External Hex Implants | 2017 |
What descends from it? (2)
2 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 34 years and passes through 7 companies; a new generation was cleared every 1.6 years on median.
- 25 of the 231 ancestors have a recall of any class.
- Of its descendants, K251434 (Osstem Implant Co., Ltd., 2026) has gone furthest, with 0 descendants of its own.
- 10 other devices also cite its predicate K182091.
How does its category compare?
All NHA devicesNHA Abutment, Implant, Dental, Endosseous: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, 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 OSSTEM Abutment system is intended for use with a dental implant to provide support for prosthetic restorations such as crowns, bridges, or overdentures.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K233194 · printed Nov 6, 2026
Cite this page
510(k) Report. “K233194: TS Abutment System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K233194
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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