K983361 · Kuraray America, Inc. · EMA · Nov 13, 1998 · Dental
Device Facts
Record ID
K983361
Device Name
PANAVIA F
Applicant
Kuraray America, Inc.
Product Code
EMA · Dental
Decision Date
Nov 13, 1998
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 872.3275
Device Class
Class 2
Indications for Use
This device is used for cementation of dental devices such as crowns or bridges. The indication is same to that of dental cements as shown blow. 1) Cementation of metal crowns and bridges, inlays and onlays 2) Cementation of porcelain crowns, inlays and onlays. 3) Cementation of composite resin crowns, inlays and onlays 4) Cementation of adhesion bridges and splints 5) Cementation of metal cores and prefabrication posts 6) Bonded amalgam restorations
Device Story
PANAVIA F is a resin-based dental cement used by dentists for the permanent cementation of various dental restorations, including crowns, bridges, inlays, onlays, cores, and posts. The device consists of two pastes (A and B), ED Primer (liquids A and B), ALLOY PRIMER, and Oxyguard II. It functions via chemical and visible light-activated curing. The clinician applies the primer and cement to the dental device and the prepared tooth surface to facilitate adhesion. The device provides a stable, bonded interface between the restoration and the tooth structure, improving retention and marginal integrity. It is intended for professional use in a clinical dental setting.
Clinical Evidence
No clinical data provided; bench testing only. Substantial equivalence is based on chemical composition, intended use, and performance characteristics similar to predicate devices.
Technological Characteristics
Resin-based dental cement; dual-cure (chemical and visible light activation). Components include dimethacrylate monomers, inorganic fillers, ED Primer, ALLOY PRIMER, and Oxyguard II. Form factor is a multi-component paste/liquid system. No specific ASTM standards or connectivity features described.
Indications for Use
Indicated for cementation of metal, porcelain, and composite resin crowns, inlays, and onlays; adhesion bridges and splints; metal cores and prefabrication posts; and bonded amalgam restorations.
Regulatory Classification
Identification
Zinc oxide-eugenol is a device composed of zinc oxide-eugenol intended to serve as a temporary tooth filling or as a base cement to affix a temporary tooth filling, to affix dental devices such as crowns or bridges, or to be applied to a tooth to protect the tooth pulp. Dental cement other than zinc oxide-eugenol is a device composed of various materials other than zinc oxide-eugenol intended to serve as a temporary tooth filling or as a base cement to affix a temporary tooth filling, to affix dental devices such as crowns or bridges, or to be applied to a tooth to protect the tooth pulp.
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# NOV 1 3 1998
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KURARA
12-39 1-Chome Umeda Kita-ku Osaka 530-86 Phone : +81-6-348-2603 Facsimile: +81-6-348-2552
## 510(k) SUMMARY
#### 1. Submitter
| 1) Name | KURARAY CO., LTD. |
|-------------------|-----------------------------------------------------------------------------|
| 2) Address | 1-12-39, Umeda, Kita-ku, Osaka 530-8611, Japan |
| 3) Telephone | 81(Japan)-6-348-2603 |
| 4) Facsimile | 81(Japan)-6-348-2552 |
| 5) Contact person | Yoshinori Nagase<br>Dental Material Department<br>Medical Products Division |
| 6) Date | September 28, 1998 |
### 2. Representing (Subsidiary of KURARAY CO., LTD.)
| 1) Name | KURARAY AMERICA INC. |
|-------------------|-------------------------------------------------------|
| 2) Address | 30th FI. Metlife Building, 200 Park Avenue, New York, |
| | NY 10166 |
| 3) Telephone | (212)-986-2230 |
| 4) Facsimile | (212)-867-3543 |
| 5) Contact person | Koji Fujita |
| | President |
#### 3. Name of Device
| 1) Proprietary Name | PANAVIA F |
|------------------------|---------------------------------|
| 2) Classification Name | Dental Cement (21 CFR 872.3275) |
| 3) Common/Usual Name | Dental Adhesive |
#### 4. Predicate devices:
| 1. | PANAVIA 21 by Kuraray Co., Ltd. | (K933030) |
|----|--------------------------------------------|-----------|
| 2. | VARIOLINK II by Ivoclar North America Inc. | (K971372) |
| 3. | C&B META BOND by Perkell | (K960464) |
#### 5. Description for the premarket notification
PANAVIA F is classified into dental cement, CFR 21 Section 872.3275, because it is a device composed of materials such as dimethacrylate monomers and inorganic fillers intended to be used for cementation of dental devices such as crowns or bridges.
This product is similar and substantially equivalent in design, composition and function to dental cement of the products which are identified in the paragraph 4 of this summary; all of which are safe, effective and beneficial.
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6. Statement of the intended use
This device is used for cementation of dental devices such as crowns or bridges. The indication is same to that of dental cements as shown blow.
| 1) | Cementation of metal crowns and bridges, inlays and onlays | |
|----|------------------------------------------------------------|-----------|
| 1. | PANAVIA 21 by Kuraray Co., Ltd. | (K933030) |
| 2. | C&B META BOND by Perkell | (K960464) |
| 2) | Cementation of porcelain crowns, inlays and onlays. | |
| 1. | PANAVIA 21 by Kuraray Co., Ltd. | (K933030) |
| 2. | VARIOLINK II by Ivoclar North America Inc. | (K971372) |
| 3) | Cementation of composite resin crowns, inlays and onlays | |
| 1. | PANAVIA 21 by Kuraray Co., Ltd. | (K933030) |
| 2. | VARIOLINK II by Ivoclar North America Inc. | (K971372) |
| 4) | Cementation of adhesion bridges and splints | |
| 1. | PANAVIA 21 by Kuraray Co., Ltd. | (K933030) |
| 2. | C&B META BOND by Perkell | (K960464) |
| 5) | Cementation of metal cores and prefabrication posts | |
| 1. | PANAVIA 21 by Kuraray Co., Ltd. | (K933030) |
| 6) | Bonded amalgam restorations | |
| 1. | PANAVIA 21 by Kuraray Co., Ltd. | (K933030) |
- 7. Statement of the technological characteristics and safety
PANAVIA F is modified in its components and chemical substances from those in PANAVIA 21 permitted to be marketed (K933030). These modifications do not affect the safety and effectiveness.
- 7-1 Technological characteristics
PANAVIA F is a resin based cement cured chemically and by visible light activation, and the improved device of PANAVIA 21. There are two major improvements; the curing method and introduction of the metal adhesion primer (ALLOY PRIMER, K974089). These improvements are not affect on the performance of PANAVIA 21
This device consists of Paste (A and B pastes), ED Primer (Liquids A and B), ALLOY PRIMER, Oxyguard II, and accessories. These components are similar to that of dental cements of the products as shown blow.
| 1. | PAÑAVIA 21 by Kuraray Co., Ltd. | (K933030) |
|----|-----------------------------------------|-----------|
| 2. | VARIOLINK II Ivoclar North America Inc. | (K971372) |
| 3. | C&B META BOND by Perkell | (K960464) |
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The indication of PANAVIA F is same as those of the above devices sold in U.S. market. (The detail information is described in the paragraph 6 of this summary.) The usage of PANAVIA F is also similar to those of PANAVIA 21 used in conjunction with ALLOY PRIMER except the curing method. This device can be cured chemically and by visible light activation. The curing method is similar to that for PANAVIA 21 and VARIOLINK II.
Therefore, PANAVIA F is substantially equivalent in intended use and performance to that of products sold in the U.S. market.
#### 7-2 Chemical ingredients and safety
The chemical ingredients have been already used in the following products that is allowed to be sold in U.S. market. The safety of this material is substantially equivalent to predicate devices.
| 1. | PANAVIA 21 by Kuraray Co., Ltd. | (K933030) |
|----|---------------------------------------------------------|-----------|
| 2. | PANAVIA EX by Kuraray Co., Ltd. | (K855211) |
| 3. | CLEARFIL LINERBOND 2V by Kuraray Co., Ltd. | (K974486) |
| 4. | CLEARFIL TEETHMATE F-1 by Kuraray Co., Ltd. | (K965091) |
| 5. | ALLOY PRIMER by Kuraray | (K974089) |
| 6. | DELTON PLUS by Dentsply | unknown |
| 7. | FLUOREVER PIT AND FISSURE SEALANT by<br>Macrochem Corp. | (K890494) |
[Note]
DELTON PLUS is thought to be the same product as DELTON F (K951296).
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Image /page/3/Picture/1 description: The image shows the seal of the Department of Health & Human Services USA. The seal is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES · USA" around the perimeter. In the center of the seal is a stylized image of three human profiles facing to the right, with three horizontal lines above them.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
NOV 1 3 1998
Kuraray Co., Ltd. C/O Mr. Koji Fujita President Kuraray America, Incorporated 30th FI Metlife Building 200 Park Avenue New York, New York 10166-3098
Re : K983361 Trade Name: PANAVIA F Regulatory Class: II Product Code: EMA September 24, 1998 Dated: September 24, 1998 Received:
Dear Mr. Fujita:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). You may, therefore, market the device, subject to the qeneral controls provisions The general controls provisions of the Act of the Act. include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions aqainst misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Requlations, Title 21, Parts 800 to 895. ਸੋ substantially equivalent determination assumes compliance with the Good Manufacturing Practice for Medical Devices: General (GMP) regulation (21 CFR Part 820) and that, through periodic GMP inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP requlation may result in requlatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of
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Page 2 - Mr. Fujita
the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling requlation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4692. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to ene regaration Chorosa, information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".
Sincerely yours
Timothy A. Ulatowski
Tim Director Division of Dental, Infection Control, and General Hospital Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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K98556|
Image /page/5/Picture/1 description: The image shows a close-up of a textured surface with a pattern of horizontal lines and vertical connections. The lines appear to be slightly irregular, giving the surface a somewhat organic or hand-crafted look. The overall impression is one of a woven or grid-like structure, with the black lines contrasting against the white background.
| 510(k) Number (if known): | K983361 |
|---------------------------|-----------|
| Device Name: | PANAVIA F |
#### Indications For Use:
PANAVIA F is indicated for the following applications:
Cementation of metal crowns and bridges, inlays and onlays. 1)
Cementation of porcelain crowns, inlays and onlays. 2)
Cementation of to composite resin crowns, inlays and onlays 3)
Cementation of adhesion bridges and splints ক)
Cementation of metal cores and prefabrication posts 5)
Bonded amalgam restorations ର)
## ن منتدى
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
**Prescription Use**
(Per 21 CFR 801.109)
OR
Over-The-Counter Use
(Optional Format 1-2-96),
Susan Ruano
(Division Sign-Off) Division of Dental, Infection Control, and General Hospital Devices 510(k) Number 198
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.