ZIMMER ZFX TITANIUM BASE ABUTMENT FOR TAPERED SCREWVENT IMPLANT SYSTEM
Applicant
Zimmer Dental, Inc.
Product Code
NHA · Dental
Decision Date
Jul 18, 2014
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 872.3630
Device Class
Class 2
Indications for Use
The Zimmer Zfx Titanium Base Abutment is a combination of a pre-manufactured (stock) abutment and the Zimmer Zfx Abutment Coping or Crown as part of a straight or angled two piece abutment. The combination of the titanium base stock abutment and the abutment coping is designed for use as a terminal or intermediate abutment for cement or screw retained prostheses. The two-piece abutment is used for a single-unit or multi-unit (bridge) restoration. The Zimmer ZFx Abutment Coping shall be manufactured by an approved Zimmer Dental milling facility.
Device Story
Zimmer Zfx Titanium Base Abutment is a two-piece dental abutment system consisting of a pre-manufactured titanium alloy base and a zirconia or IPS e.Max coping/crown. The titanium base features an internal hex interface for connection to endosseous implants via a retaining screw. The device is used by dental professionals in clinical settings to support cement or screw-retained single or multi-unit (bridge) restorations. The titanium base includes a cone design to minimize metal visibility through the final restoration, improving aesthetics. The coping is fabricated at approved milling facilities. The system provides a stable foundation for prosthetic restorations, benefiting patients by restoring dental function and aesthetics.
Clinical Evidence
No clinical data. Substantial equivalence is supported by non-clinical mechanical testing, including fatigue/strength testing of the titanium base and the two-piece abutment system compared to predicate devices, and MRI compatibility evaluation.
Technological Characteristics
Materials: Titanium 6Al-4V (base), Zirconia or IPS e.Max (coping/crown). Interface: Internal hex. Platforms: 3.5mm, 4.5mm, 5.7mm. Max angulation: 20°. Connectivity: Compatible with CAD/CAM and traditional patient-specific restoration workflows. Packaging: PETG tray.
Indications for Use
Indicated for patients requiring single-unit or multi-unit (bridge) dental restorations supported by endosseous implants. Used as a terminal or intermediate abutment for cement or screw-retained prostheses.
Regulatory Classification
Identification
An endosseous dental implant abutment is a premanufactured prosthetic component directly connected to the endosseous dental implant and is intended for use as an aid in prosthetic rehabilitation.
Special Controls
*Classification.* Class II (special controls). The guidance document entitled “Class II Special Controls Guidance Document: Root-Form Endosseous Dental Implants and Endosseous Dental Implant Abutments” will serve as the special control. (See § 872.1(e) for the availability of this guidance document.)
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Zimmer Dental
1900 Aston Avenue Carlsbad, CA 92008 760.929.4300 (ph) 760.431.7811 (fax)
# JUL 1 8 2014
## Traditional 510(k) PRE-MARKET NOTIFICATION 510(k)
# 510(k) SUMMARY (21CFR807.92(a))
#### 1. Submitter's Information:
| Name: | Zimmer Dental Inc. |
|-----------|---------------------------------------|
| Address: | 1900 Aston Ave.<br>Carlsbad, CA 92008 |
| Phone: | 760-929-4315 |
| Contacts: | Melissa Burbage<br>Kerry Foote |
Date Prepared: June 13, 2014
- 2. Device Name: Trade Name: Regulation Number: Classification Code: Device Classification Name:
Zimmer Zfx Titanium Base Abutment 872.3630 NHA Endosseous Implant, Abutment
#### 3. Predicate Device(s):
Predicate Device No. 1 Trade Name: 510(k): Regulation Number: Classification Code: Device Classification Name:
Predicate Device No. 2 Trade Name: 510(k): Regulation Number: Classification Code: Device Classification Name:
Predicate Device No. 3 Trade Name: 510(k): Regulation Number: Classification Code: Device Classification Name: Hex Lock Abutment K011028 872.3630 NHA Endosseous Implant, Abutment
Zimmer Pre-angled Ti Abutment K011028 872.3630 NHA Endosseous Implant, Abutment
Strauman® Variobase™ Abutments K132219 872.3630 -NHA Endosseous Implant, Abutment
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#### 4. Device Description:
The Zimmer Zfx Titanium Base Abutment is a combination of a pre-manufactured (stock) abutment and the Zimmer Zfx Abutment Coping or Crown as part of a two piece abutment. The abutment is designed for use as a terminal or intermediate abutment for cement retained prostheses. The abutment is used for single unit restorations in the anterior and posterior regions. The abutment base will be made available in 3.5, 4.5 and 5.7mm platforms. The Zimmer Zfx Titanium Base serves as a bonding base that allows for cementation of a patient-specific restoration. Copings, crowns and bridges can be used with the Zimmer Zfx Titanium Base.
The Zimmer Zfx Abutment Coping is a zirconia mesostructure component that would be cemented onto the Zimmer Zfx Titanium Base Abutment to form the two-piece abutment. These componenents will be manufactured from zirconia or IPS e.Max. The maximum angulation that is allowed is 20°. The two piece abutment would then be able to be used as a terminal or intermediate abutment for cement or screw retained prostheses that is for a single or multi-unit (bridge) restoration. The Zimmer Zfx Abutment Coping would require a separate crown to be cemented onto the coping or direct veneering to be applied.
#### న . Indications for Use:
The Zimmer Zfx Titanium Base Abutment is a combination of a pre-manufactured (stock) abutment and the Zimmer Zfx Abutment Coping or Crown as part of a straight or angled two piece abutment. The combination of the titanium base stock abutment and the abutment coping is designed for use as a terminal or intermediate abutment for cement or screw retained prostheses. The two-piece abutment is used for a single-unit or multi-unit (bridge) restoration. The Zimmer ZFx Abutment Coping shall be manufactured by an approved Zimmer Dental milling facility.
#### 6. Device Comparison:
The new device is substantially equivalent to the predicate device, in that it is manufactured with the same material, has the same intended use, and contains the same abutment/implant interface design. The function in the endosseous implant system remains the same as the predicate devices. The new device is fabricated from Titanium alloy and utilizes the hex implant/abutment interface, which is identical in size and shape (for a given platform diameter) to the predicate device. The new device will be affixed to the implant by a retaining screw. In addition, the new titanium base is similar to that of the predicate device. The new device will be utilized with the same Zimmer Dental Product Lines as the predicate device. The Zimmer Zfx Titanium Base is designed with a shorter and narrower cone, when compared to the predicate device. By minimizing
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the size of the cone on the Titanium Base, the amount of metal available to be seen through the final restoration is minimized producing a more aesthetic finish.
#### 7. Technological Characteristics
| Feature | New Device | Predicate 1 | Predicate 2 | Predicate 3 |
|--------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Zimmer Zfx Titanium Base<br>Abutment for Zimmer Tapered<br>Screw-Vent Implant System | Zimmer Hex Lock<br>Abutment 510(k)<br>K011028 | Zimmer Pre-Angled Ti<br>Abutment<br>K011028 | Strauman® Variobase™<br>Abutments<br>K132219 |
| Indications | The Zimmer Zfx Titanium Base Abutment is a combination of a pre-manufactured (stock) abutment and the Zimmer Zfx Abutment Coping or Crown as part of a straight or angled two piece abutment. The combination of the titanium base stock abutment and the abutment coping is designed for use as a terminal or intermediate abutment for cement or screw retained prostheses. The two-piece abutment is used for a single-unit or multi-unit (bridge) restoration. The Zimmer ZFx Abutment Coping shall be manufactured by an approved Zimmer Dental milling facility. | For use as a terminal abutment for cemented prosthesis. Abutments are for single unit restorations. Single use. | For use as a terminal abutment for cemented prosthesis. Abutments are for single unit restorations. Single use. | Strauman® Variobase™ Abutments are pre-manufactured (stock) abutments intended to be placed onto Strauman dental implants to provide support for customized prosthetic restorations such as crown and bridges. Strauman® Variobase™ Abutments are indicated for screw-retained single tooth or cement-retained single tooth and bridge restorations. |
| Implant<br>Interface | Internal Hex | Internal, Hex | Internal, Hex | Various |
| Abutment<br>Platform<br>Diameter | 3.5mm, 4.5mm, 5.7mm | 3.5mm, 4.5mm, 5.7mm | 3.5, 4.5, 5.7 mm | Various |
| Material | Titanium 6Al-4V (base)<br>Zirconia (coping/crown) | Titanium 6Al-4V | Titanium 6Al-4V | Titanium 6Al-7Nb (base)<br>Zirconia/Zerion<br>(coping/crown)<br>Acrylic/polycon<br>(coping/crown) |
| Packaging | PETG tray | Cap/Vial | Cap/Vial | Not identified |
| Compatible<br>with CAD/CAM<br>patient-specific<br>restorations | Yes | Yes | Yes | Yes |
| Compatible<br>with Traditional<br>patient-specific<br>restorations | Yes | Yes | Yes | Yes |
8. Non-Clinical Testing:
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Zimmer Dental implant systems were evaluated for interactions with magnetic fields during Magnetic Resonance Imaging (MRI) in accordance with the FDA Guidance: Establishing Safety and Compatibility of Passive Implants in the Magnetic Resonance (MR) Environment.
Additionally, in accordance with the FDA guidance Class II Special Controls Guidance Document: Root-form Dental Implants and Endosseous Dental Implant Abutments, nonclinical mechanical testing of the Zimmer Zfx Titanium Base Abutment was performed. Two different tests were conducted in order to characterize the mechanical strength of the new device. The first test consisted of the Titanium base portion of the new device assembled in a abutment test setup. A hemispherical test cap, representing a final restoration, was cemented directly to the Titanium base portion of the device. The results demonstrated that the Titanium base portion of the new device is equivalent to the currently marketed Zimmer Hex Lock Abutment (K011028). The second test evaluated the new device as a two-piece abutment system. The testing was performed with the Titanium base portion of the new device and a 20 degree angulated Zirconia mesotructure cemented together. The results demonstrated that the two-piece abutment system is substantially equivalent to the currently marketed Zimmer Pre-Angled Ti Abutment (K011028).
### Clinical Testing:
In accordance with the FDA guidance Class II Special Controls Guidance Document: Rootform Dental Implants and Endosseous Dental Implant Abutments, clinical testing of the Zimmer Zfx Titanium two piece Abutment was not performed. The device is not significantly different from the predicate device and also contains the same design features, technological characteristics and indications as the currently marketed Zimmer Hex Lock Abutment (K011028).
#### 9. Conclusion:
Based on our analysis, the device is substantially equivalent to the predicate.
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Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with three lines representing its wings and body. The eagle faces to the left. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the eagle.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
July 18, 2014
Zimmer Dental, Inc. Melissa Burbage Associate Director, Regulatory Affairs 1900 Aston Ave. Carlsbad, CA 92008
Re: K133551
Trade/Device Name: Zimmer Zfx Titanium Base Abutments for Tapered Screw-Vent Implant System Regulation Number: 21 CFR 872.3630 Regulation Name: Endosseous Dental Implant Abutment Regulatory Class: Class II Product Code: NHA Dated: June 16, 2014 Received: June 18, 2014
Dear Ms. Burbage:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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Page 2 - Ms. Burbage
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.lda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638 2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Image /page/5/Figure/8 description: The image shows the name Tejashri Purohit-Sheth, M.D. twice, along with the acronym FDA in a stylized font. The text below the name indicates that Tejashri Purohit-Sheth, M.D. is a Clinical Deputy Director. The acronym DAGRID/ODE/CDRH is also present, followed by the word FOR.
Erin I. Keith, M.S. Director Division of Anesthesiology, General Hospital, Respiratory, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Image /page/6/Picture/2 description: The image shows a logo with the letter "Z" inside a circle at the top. Below the circle, the word "zimmer" is written in a bold, sans-serif font. Underneath "zimmer", the word "dental" is written in a smaller, less bold font.
Indications for Use
510(k) Number (if known): K133551
Device Name: Zimmer Zfx Titanium Base Abutments for Tapered Screw-Vent Implant System
Indications For Use:
The Zimmer Zfx, Titanium Base Abutment is a combination of a pre-manufactured (stock) abutment and the Zimmer Coping of Crown as part of a straight of a straight of a straight of a straight of a straight of a straight of
the abutment coping is designe cement or screw retained prostheses. The two-piece abutment is used for a single unit or multi-unit (bridge) restoration. The Zimmer ZFx Abutment Coping shall be manufactured by an approved Zimmer Dental milling facility!
Prescription Use _ X (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Lauren M. 2014.07.18
Giles-S 15:58:56
-04'00"
for SAG
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.