510(k) · Cleared
ClearedTREFOIL System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Nobel Biocare AB · DZE Implant, Endosseous, Root-Form
Cleared on May 11, 2017 as substantially equivalent to K152836 (Nobel Biocare AB, 2016) after a 114-day review. Its family tree reaches back 2 generations to 2000.
- Decided
- May 11, 2017
- Review
- 114 days
- Class
- Class II
- Product code
- DZE
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 2 generations to K000018 (2000). No later device cites it as a predicate yet.
View FIG. 1 as a table
Line of descent and top descendants
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 DZE? 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 DZE device
- #1 K211090 ZENEX Implant Systemscore 25.4 · 15 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the 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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K152836 | TREFOIL SystemSummary page 4…CFR 872.3640) Regulatory Class: II Primary Product Code: DZE Other Product Code(s): NHA, DZI III. PREDICATE DEVICE Primary predicate: Nobel Biocare – TREFOIL System (K152836) This predicate has not been subject to a design-related recall. Reference predicate: Nobel Biocare – NobelSpeedy Implants (K050… | 2016 |
| † | K050406 | Nobelspeedy Implants | 2005 |
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 17 years and passes through 2 companies; a new generation was cleared every 16.0 years on median.
- None of the 2 ancestors has a recall.
- 1 other device also cites its predicate K152836.
How does its category compare?
All DZE devicesDZE Implant, Endosseous, Root-Form: FDA decisions, review times, recalls and adverse event reports over 20 years. 2017, this device’s year, is highlighted.
FDA decisions per year · DZE
31in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DZE
184in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DZE
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DZE
465,788in 2025
MAUDE reports naming product code DZE, 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 | 43 | 107 | 11 | 225 |
| 2008 | 61 | 118 | 4 | 393 |
| 2009 | 41 | 110 | 3 | 164 |
| 2010 | 34 | 162 | 3 | 360 |
| 2011 | 26 | 194 | 0 | 362 |
| 2012 | 39 | 174 | 11 | 358 |
| 2013 | 42 | 195 | 1 | 391 |
| 2014 | 36 | 265 | 7 | 1,124 |
| 2015 | 36 | 215 | 3 | 2,894 |
| 2016 | 40 | 219 | 15 | 1,116 |
| 2017 | 48 | 223 | 4 | 9,719 |
| 2018 | 41 | 200 | 4 | 12,892 |
| 2019 | 31 | 231 | 8 | 167,016 |
| 2020 | 41 | 230 | 0 | 255,524 |
| 2021 | 34 | 182 | 6 | 479,618 |
| 2022 | 34 | 243 | 0 | 483,224 |
| 2023 | 35 | 248 | 0 | 537,585 |
| 2024 | 40 | 222 | 1 | 473,629 |
| 2025 | 31 | 184 | 1 | 465,788 |
| 2026 | 15 | 194 | 2 | — |
What is it indicated for?
The Trefoil system is used to restore chewing function in fully edentulous mandibles. The three implants of the Trefoil system are placed between the mental foramina in fully edentulous mandibles in a 1-stage surgical technique combined with an immediate function loading protocol, provided sufficient primary stability for the selected technique is achieved. In cases where sufficient primary stability of one or more implants is not reached, the implants…
Read the full statement (134 words)
The Trefoil system is used to restore chewing function in fully edentulous mandibles.
The three implants of the Trefoil system are placed between the mental foramina in fully edentulous mandibles in a 1-stage surgical technique combined with an immediate function loading protocol, provided sufficient primary stability for the selected technique is achieved. In cases where sufficient primary stability of one or more implants is not reached, the implants along with the bar may also be used with an early or delayed loading protocol.
The following prerequisites must be fulfilled:
- Adequate quantity of bone (minimum width of 7mm; and minimum heights of 13mm for 11.5 mm implant and 14.5mm for 13.0 mm implant).
- Adequate mouth opening (minimum 40 mm) to accommodate the guided surgery instruments.
- Implant-supported prosthetics seated directly on dedicated implants.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K170135 · printed Nov 6, 2026
Cite this page
510(k) Report. “K170135: TREFOIL System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K170135
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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