The Zimmer® Patient Specific Abutment is used as a terminal or intermediate abutment for a cemented prosthesis. The abutment can be used for a single or multiple-unit restoration.
Device Story
Patient-specific dental implant abutment; designed for internal hex connection implants. Replaces manual chair-side or laboratory modification of stock abutments by incorporating custom design parameters (margin width/radius, cuff height/width) during manufacturing. Input: patient-specific anatomical data; Output: custom-machined titanium abutment. Used in dental clinics; operated by dentists or laboratory technicians. Secured to implant via titanium alloy retaining screw. Benefits: provides patient-specific fit, reducing need for manual modification; supports cemented single or multi-tooth restorations.
Clinical Evidence
No clinical testing performed. Substantial equivalence supported by non-clinical bench testing, including fatigue and compression testing per FDA guidance for Root-form Dental Implants and Endosseous Dental Implant Abutments, and MRI compatibility evaluation.
Indicated for use as a terminal or intermediate abutment for cemented single or multiple-unit dental prostheses in patients requiring dental implant restoration.
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.)
Predicate Devices
Zimmer® Patient Specific Abutment, Internal Hex, Titanium (K071439)
Zimmer Zfx Abutment for Nobel Active Implant System (K134045)
Zimmer Zfx Titanium Abutment for Biomet 3i Certain Implant System (K141544)
Submission Summary (Full Text)
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
June 25, 2015
Zimmer Dental, Inc. Ms. Christina Boydston Regulatory Affairs Manager 1900 Aston Ave. Carlsbad, California 92008
Re: K143505
Trade/Device Name: Zimmer® Patient Specific Abutment, Internal Hex, Titanium Regulation Number: 21 CFR 872.3630 Regulation Name: Endosseous Dental Implant Abutment Regulatory Class: II Product Code: NHA Dated: March 25, 2015 Received: March 27, 2015
Dear Ms. Boydston:
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.
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
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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 (reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) 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.fda.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/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Tina
Kiang-S
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/2/Picture/2 description: The image shows the logo for Zimmer Dental. The logo features a blue circle with a white "Z" inside. Below the circle, the word "zimmer" is written in a sans-serif font, with the word "dental" written in a smaller font below a horizontal line.
# Indications for Use
510(k) Number (if known): K143505
# Device Name: Zimmer® Patient Specific Abutment, Internal Hex, Titanium
Indications For Use:
The Zimmer® Patient Specific Abutment is used as a terminal or intermediate abutment for a cemented prosthesis. The abutment can be used for a single or multiple-unit restoration.
× Prescription Use (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)
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Zimmer Dental 900 Aston Avenue rlsbad, CA 92008 60.929.4300 (ph) 60.431.7811 (fax)
# PRE-MARKET NOTIFICATION 510(k)
# 510(k) SUMMARY (21CFR807.92(a))
#### 1. Submitter's Information:
| Name: | Zimmer Dental Inc. |
|----------------|------------------------------------|
| Address: | 1900 Aston Ave. Carlsbad, CA 92008 |
| Phone: | 760-929-4300 |
| Contact: | Christina Boydston |
| Date Prepared: | December 8, 2014 |
- 2. Device Name: Trade Name:
Regulation Number: Classification Code: Device Classification Name: Zimmer® Patient Specific Abutment, Internal Hex, Titanium 872.3630 NHA Abutment, Implant, Dental, Endosseous
- 3. Predicate Device(s):
Predicate Device No. 1 Trade Name:
510(k) Number: Regulation Number: Classification Code: Device Classification Name:
Predicate Device No. 2 Trade Name:
510(k) Number: Regulation Number: Classification Code: Device Classification Name:
Predicate Device No. 3 Trade Name:
510(k) Number: Regulation Number: Zimmer® Patient Specific Abutment, Internal Hex, Titanium K071439 872.3630 NHA Abutment, Implant, Dental, Endosseous
Zimmer Zfx Abutment for Nobel Active Implant System K134045 872.3630 NHA Abutment, Implant, Dental, Endosseous
Zimmer Zfx Titanium Abutment for Biomet 3i Certain Implant System K141544 872.3630
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Classification Code: Device Classification Name: NHA Abutment, Implant, Dental, Endosseous
#### 4. Device Description:
The Zimmer® Patient Specific Abutment, Internal Hex, Titanium is designed for use with internal hex connection implants to support single or multi tooth restorations. The abutment/implant interface is an internal hexagonal connection. The proposed changes to the Zimmer Patient-Specific Abutment include changes to the design parameters with respect to the margin width and radius, the cuff height and the cuff width. The updated design parameters do not affect the device's intended use or alter the fundamental scientific technology of the device.
The Zimmer® Patient Specific Abutment, Internal Hex, Titanium is a patient specific dental implant abutment. The purpose of a Patient-Specific abutment is to satisfy patient's needs that are otherwise difficult to meet with off-the-shelf abutments. They can be manufactured in multiple sizes, shapes, and angles within the limits established in this submission. They frequently incorporate the modifications typically done at a dental laboratory or "chair-side" by a dentist. Traditional methodologies require the customer (dentist/laboratory technician) to begin with a "stock" abutment and use manual subtractive techniques to remove material from this original "stock" design. However, a Patient-Specific abutment will incorporate these same modifications desired by the customer (dentist/laboratory technician) at the time of fabrication at the manufacturing facility.
The engineering drawings list ranges in areas (attributes) of the abutment that may be modified depending upon patient-specific needs.
The abutment is composed of Titanium alloy (Ti6Al4V), and secured to the implant with a separate Titanium alloy screw for retention.
The abutment is offered in 3.5mm, 4.5mm, and 5.7mm implant platforms.
#### న్. Indications for Use:
The Zimmer® Patient Specific Abutment is used as a terminal or intermediate abutment for a cemented prosthesis. The abutment can be used for a single or multiple-unit restoration.
## 6. Device Comparison:
The proposed changes to the Zimmer® Patient Specific Abutment, Internal Hex, Titanium include changes to the design parameters with respect to the margin width and radius, the cuff height and the cuff width. The updated design
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parameters do not affect the device's intended use or alter the fundamental scientific technology of the device. Further the updated parameters are similar to the parameters called out for the predicate devices. The new abutment does not change relative to the material, manufacturing process or general design features.
The new abutment device is substantially equivalent to the predicate and remains the same as the current device relative to material, manufacturing process and general design features. It is fabricated from Titanium alloy and utilizes an internal hexagonal connection, which is identical in size and shape (for a given platform diameter) to the predicate device and the current device. The new abutment will be affixed to the implant by a retaining screw in the same manner as the predicate.
| Feature | New Device<br>Zimmer® Patient<br>Specific Abutment,<br>Internal Hex, Titanium | Existing Device<br>(K071439)<br>Zimmer® Patient<br>Specific Abutment,<br>Internal Hex,<br>Titanium | Predicate #2<br>Zimmer Zfx Titanium<br>Abutment for<br>NobelActive Implant<br>System | Predicate #3<br>Zimmer Zfx Titanium<br>Abutment for Biomet 3i<br>Certain Implant System |
|-------------------------------------------------|---------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------|
| Material | Titanium 6Al-4V | Titanium 6Al-4V | Titanium 6Al-4V | Titanium 6Al-4V |
| Implant Interface | Internal hex,<br>friction-fit | Internal hex,<br>friction-fit | Internal Conical,<br>Internal Hex | Internal Hex |
| Emergence | Contoured/curved<br>depending on anatomy | Contoured/curved<br>depending on anatomy | Contoured/curved<br>depending on anatomy | Contoured/curved<br>depending on anatomy |
| Margin | Pre-machined | Pre-machined | Pre-machined | Pre-machined |
| Platform Diameter | 3.5mm, 4.5mm,<br>5.7mm | 3.5mm, 4.5mm,<br>5.7mm | 3.5mm, 3.9mm | 3.4mm, 4.1mm,<br>5.0mm, 6.0mm |
| Cuff Width | 3.5mm Platform: 3.5-<br>9.0<br>4.5mm Platform: 4.5-<br>10.0<br>5.7mm Platform: 5.7-<br>12.0 | 3.5mm-8.0mm | 3.5mm Platform: 3.0-<br>9.0<br>3.9mm Platform: 3.4-<br>9.0 | 3.4mm Platform: 3.4-<br>8.0<br>4.1mm Platform: 4.1-<br>9.0<br>5.0mm Platform: 5.0-<br>10.0<br>6.0mm Platform: 6.0-<br>12.0 |
| Cuff Height<br>(note: screw must be<br>covered) | No limit | 0.5mm-6.0mm | No limit | No limit |
| Cone Angle | 0°-30° | 0°-30° | 0°-25° | 0°-30° |
| Retaining Screw | MHLAS | MHLAS | ZFX09000627,<br>ZFX09000628 | ZFX09000978 |
#### 6. Technological Characteristics
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## 8. Non-Clinical Testing:
Non-clinical test data was used to support the decision of substantial equivalence in K071439. Non-clinical testing consisted of performance of fatigue and compression testing in accordance with the FDA guidance Class II Special Controls Guidance Document: Root-form Dental Implants and Endosseous Dental Implant Abutments. The testing indicates that the new device is strong enough to withstand the anticipated forces and demonstrated improvements over the predicate device(s). This testing was previously reviewed and accepted under K071439.
In addition, the Zimmer® Patient Specific Abutment, Internal Hex, Titanium will be sold non-sterile and will be sterilized by the end user. The sterilization procedures listed in the Instruction For Use were validated to provide a minimum sterility assurance level of 10-9.
Additionally, 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. This was done to determine that the presence of the abutment poses no additional restrictions on MRI beyond those that would otherwise occur for the patient.
## 9. Clinical Testing
No clinical testing was performed. Non-clinical testing was used to support the decision of safety and effectiveness.
## 10. Conclusion
Based on our analysis, the device is substantially equivalent to the predicate and the intended uses have not changed from the previously cleared device submitted under K071439.
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.