510(k) · Cleared
ClearedBioporta G
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Wieland Dental + Technik GmbH & Co. KG · EJT Alloy, Gold-Based Noble Metal
Cleared on Dec 10, 2002 as substantially equivalent to K952122 (Metalor Dental USA Corp., 1995) after a 62-day review. Its family tree reaches back 1 generation to 1995.
- Decided
- Dec 10, 2002
- Review
- 62 days
- Class
- Class II
- Product code
- EJT
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K952122 (1995). No later device cites it as a predicate yet.
- Root · 1 generation backK952122 V-Gnathos PlusMetalor Dental USA Corp. · 1995
- This deviceK023391 Bioporta GWieland Dental + Technik GmbH & Co. KG · 2002
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K952122 | V-Gnathos Plus | Metalor Dental USA Corp. | 1995 | — |
| 0 (this device) | K023391 | Bioporta G | Wieland Dental + Technik GmbH & Co. KG | 2002 | — |
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 EJT? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
- Candidate predicates for a device like this, rankedin the report
- Recall history across each candidate’s familyin 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 |
|---|---|---|---|
| * | K952122 | V-Gnathos PlusSummary page 1…EJT C.D.R section: 872.3060 Classification: Class II Legally marketed equivalent device: V-Gnathos Plus 51O(k) number: K952122 Device description BioPorta G is a gold-platinum ceramic alloy with high contents of noble metals (97 %) intended for dental… | 1995 |
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.
- 1 other device also cites its predicate K952122.
How does its category compare?
All EJT devicesEJT Alloy, Gold-Based Noble Metal: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · EJT
FDA has decided no EJT device since 2007.
Median 510(k) review, days · EJT
Too few EJT 510(k)s in any year since 2007 to give a median.
Recalls per year · EJT
No recall names EJT since 2007.
Adverse event reports per year · EJT
1in 2017
MAUDE reports naming product code EJT, 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 | 0 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 1 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 1 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 0 | — | 0 | 1 |
| 2017 | 0 | — | 0 | 1 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
BioPorta G is a gold-platinum alloy that can be used by dental technicians to fabricate dental appliances for patients.
It is intended for manufacturing
Inlays/ Onlays
Partial crowns
Crowns
Short span bridges
Long span bridges
Removable partials
and can be used for
Telescopic and milling work
BioPorta G can be veneered with suitable dental ceramics as well as with dental-composites.
In addition BioPorta G, in the shape of wires, can be used for laser welding in operations in which dental alloy parts made of BioPorta G are joined to form dental restorations.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K023391 · printed Nov 4, 2026
Cite this page
510(k) Report. “K023391: Bioporta G.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K023391
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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