510(k) · Cleared
ClearedStraumann SC Variobase Abutments
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Institut Straumann AG · NHA Abutment, Implant, Dental, Endosseous
Cleared on Oct 5, 2018 as substantially equivalent to K162890 (Straumann USA, LLC, 2017) and 1 other predicate after a 283-day review. Its family tree reaches back 16 generations to 1990.
- Decided
- Oct 5, 2018
- Review
- 283 days
- Class
- Class II
- Product code
- NHA
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 16 generations to K894844 (1990). 263 ancestors in all, the oldest K781060 (1978). No later device cites it as a predicate yet.
- Root · 16 generations backK894844 Bonefit Implant System Accessories & InstrumentsStraumann Institute, Ltd. · 1990
- 12 generations between
- 3 generations backK132219 Straumann (R) Variobase (TM) Abutment NNC, Straumann (R) Variobase…Straumann USA, LLC · 2014
- 2 generations backK142890 Straumann Variobase Abutment NNC, Straumann Variobase Abutment RN…Straumann USA, LLC · 2015
- 1 generation backK162890 BLT 02.9mm SC, SLA or SLActive, RXD, Loxim, SC Closure Cap and…Straumann USA, LLC · 2017
- This deviceK173945 Straumann SC Variobase AbutmentsInstitut Straumann AG · 2018
Show all 16 generations
- Root · 16 generations backK894844 Bonefit Implant System Accessories & InstrumentsStraumann Institute, Ltd. · 1990
- 15 generations backK990342 Synocta ProstheticsStraumann USA · 1999
- 14 generations backK013798 Prosthetic Accessories to the Iti Dental Implant SystemInstitut Straumann AG · 2001
- 13 generations backK020096 Esthetic Ease Abutments for the Iti Dental Implant SystemInstitut Straumann AG · 2002 · Recalled
- 12 generations backK033243 Iti Synocta Meso AbutmentsStraumann USA · 2003
- 11 generations backK052272 Straumann Computer Aided Restoration ServiceStraumann USA · 2006
- 10 generations backK061277 Straumann Computer Aided Restoration Service (C.a.R.E.S.) Ceramic…Straumann USA · 2007
- 9 generations backK072151 P.004 RC Cares Titanium and Ceramic AbutmentsStraumann USA · 2007 · Recalled
- 8 generations backK081005 P.004 NC Cares Titanium and Ceramic AbutmentsInstitut Straumann AG · 2008 · Recalled
- 7 generations backK082545 Straumann NN Cares Titanium and Ceramic AbutmentsInstitut Straumann AG · 2008
- 6 generations backK093113 Etkon ES1, Model 019.0001, Etkon Visual, Straumann Cadcam AbutmentInstitut Straumann AG · 2009
- 5 generations backK101465 Straumann Cares Bridge; Straumann Cares Dolder BarInstitut Straumann AG · 2010
- 4 generations backK120822 Straumann Cares Variobase Abutment NNC, Straumann Cares Variobase…Institut Straumann AG · 2012
- 3 generations backK132219 Straumann (R) Variobase (TM) Abutment NNC, Straumann (R) Variobase…Straumann USA, LLC · 2014
- 2 generations backK142890 Straumann Variobase Abutment NNC, Straumann Variobase Abutment RN…Straumann USA, LLC · 2015
- 1 generation backK162890 BLT 02.9mm SC, SLA or SLActive, RXD, Loxim, SC Closure Cap and…Straumann USA, LLC · 2017
- This deviceK173945 Straumann SC Variobase AbutmentsInstitut Straumann AG · 2018
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −16 | K894844 | Bonefit Implant System Accessories & Instruments | Straumann Institute, Ltd. | 1990 | — |
| −15 | K990342 | Synocta Prosthetics | Straumann USA | 1999 | — |
| −14 | K013798 | Prosthetic Accessories to the Iti Dental Implant System | Institut Straumann AG | 2001 | — |
| −13 | K020096 | Esthetic Ease Abutments for the Iti Dental Implant System | Institut Straumann AG | 2002 | 1 |
| −12 | K033243 | Iti Synocta Meso Abutments | Straumann USA | 2003 | — |
| −11 | K052272 | Straumann Computer Aided Restoration Service | Straumann USA | 2006 | — |
| −10 | K061277 | Straumann Computer Aided Restoration Service (C.a.R.E.S.) Ceramic Coping | Straumann USA | 2007 | — |
| −9 | K072151 | P.004 RC Cares Titanium and Ceramic Abutments | Straumann USA | 2007 | 1 |
| −8 | K081005 | P.004 NC Cares Titanium and Ceramic Abutments | Institut Straumann AG | 2008 | 1 |
| −7 | K082545 | Straumann NN Cares Titanium and Ceramic Abutments | Institut Straumann AG | 2008 | — |
| −6 | K093113 | Etkon ES1, Model 019.0001, Etkon Visual, Straumann Cadcam Abutment | Institut Straumann AG | 2009 | — |
| −5 | K101465 | Straumann Cares Bridge; Straumann Cares Dolder Bar | Institut Straumann AG | 2010 | — |
| −4 | K120822 | Straumann Cares Variobase Abutment NNC, Straumann Cares Variobase Abutment RN… | Institut Straumann AG | 2012 | — |
| −3 | K132219 | Straumann (R) Variobase (TM) Abutment NNC, Straumann (R) Variobase (TM)… | Straumann USA, LLC | 2014 | — |
| −2 | K142890 | Straumann Variobase Abutment NNC, Straumann Variobase Abutment RN, Straumann… | Straumann USA, LLC | 2015 | — |
| −1 | K162890 | BLT 02.9mm SC, SLA or SLActive, RXD, Loxim, SC Closure Cap and Healing… | Straumann USA, LLC | 2017 | — |
| 0 (this device) | K173945 | Straumann SC Variobase Abutments | Institut Straumann AG | 2018 | — |
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 | 4 | 0 |
| 1993 | 12 | 0 |
| 1994 | 11 | 0 |
| 1995 | 12 | 0 |
| 1996 | 16 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 0 |
| 2002 | 15 | 0 |
| 2003 | 12 | 0 |
| 2004 | 13 | 0 |
| 2005 | 12 | 0 |
| 2006 | 13 | 0 |
| 2007 | 17 | 0 |
| 2008 | 11 | 0 |
| 2009 | 9 | 0 |
| 2010 | 7 | 0 |
| 2011 | 8 | 0 |
| 2012 | 7 | 0 |
| 2013 | 5 | 0 |
| 2014 | 1 | 0 |
| 2015 | 2 | 0 |
| 2017 | 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? (2)
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 |
|---|---|---|---|
| * | K162890 | BLT 02.9mm SC, SLA or SLActive, RXD, Loxim, SC Closure Cap and Healing Abutments, SC…Summary page 4…on Name: Endosseous Dental Implant Abutment Regulation Number: §872.3630 Classification: Class II Product Codes: NHA Predicate Device(s) Primary Predicate: K162890 – Straumann® Ø2.9 mm Bone Level Tapered Implant Reference Devices: K170356 – Straumann® Variobase® Abutments Device Description… | 2017 |
| * | K170356 | Straumann Variobase AbutmentsSummary page 4…assification: Class II Product Codes: NHA Predicate Device(s) Primary Predicate: K162890 – Straumann® Ø2.9 mm Bone Level Tapered Implant Reference Devices: K170356 – Straumann® Variobase® Abutments Device Description There are three components to the Straumann® SC Variobase® Abutments:… | 2017 |
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 28 years and passes through 4 companies; a new generation was cleared every 1.3 years on median.
- 27 of the 263 ancestors have a recall of any class.
- 2 other devices also cite its predicate K162890.
How does its category compare?
All NHA devicesNHA Abutment, Implant, Dental, Endosseous: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, 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?
Straumann® SC Variobase® abutments are indicated for use as an aid in prosthetic rehabilitations. The prosthetic restoration can be cemented on the Straumann® SC Variobase® prosthetic components. A temporary restoration can be used prior to the insertion of the final components to maintain, stabilize and form the soft tissue during the healing phase. Final abutments and restorations may be placed into occlusion when the implant is fully osseointegrated.
All digitally designed copings and/or crowns for use with the Straumann® Variobase® Abutment system are intended to be sent to Straumann for manufacture at a validated milling center.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K173945 · printed Nov 6, 2026
Cite this page
510(k) Report. “K173945: Straumann SC Variobase Abutments.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K173945
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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