K153334 · Young Dental Manufacturing Co. 1, LLC · LBH · May 20, 2016 · Dental
Device Facts
Record ID
K153334
Device Name
Oral-B 5% Sodium Fluoride Varnish
Applicant
Young Dental Manufacturing Co. 1, LLC
Product Code
LBH · Dental
Decision Date
May 20, 2016
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 872.3260
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Oral-B varnish is a fluoride-containing preparation for the treatment of dental hypersensitivity, and for the reduction of post-operative sensitivity.
Device Story
Oral-B 5% Sodium Fluoride Varnish is a dental preparation used to treat dentinal hypersensitivity and reduce post-operative sensitivity. The device consists of a viscous liquid containing 5% sodium fluoride (50 mg/mL) and denatured alcohol, packaged with an applicator in a sealed tray. It is applied by a dental professional as a thin coat to tooth surfaces. The mechanism of action involves the formation of calcium fluoride, which occludes open dentin tubules. The device uses a synthetic resin base, sweeteners (sucralose, Xylitol), and flavoring agents. It is intended for prescription use in a clinical setting.
Clinical Evidence
No clinical data. Substantial equivalence established via non-clinical bench testing and biocompatibility studies. Bench testing confirmed fluoride release and tubule occlusion characteristics are comparable to the predicate. Biocompatibility testing included cytotoxicity (ISO 10993-5) and irritation/sensitization (ISO 10993-10).
Technological Characteristics
Viscous liquid containing 5% sodium fluoride, synthetic resin base, denatured alcohol, sweeteners, and flavoring. Mode of action: dentin tubule occlusion via calcium fluoride formation. Applied via brush/applicator. Packaged in molded opaque acclar tray with metallized foil seal. Shelf life: 24 months.
Indications for Use
Indicated for treatment of dentinal hypersensitivity and reduction of post-operative sensitivity. Contraindicated in patients with ulcerative gingivitis and stomatitis.
Regulatory Classification
Identification
Cavity varnish is a device that consists of a compound intended to coat a prepared cavity of a tooth before insertion of restorative materials. The device is intended to prevent penetration of restorative materials, such as amalgam, into the dentinal tissue.
Special Controls
*Classification.* Class II (special controls). The device, when it is an external cleaning solution, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 872.9.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
May 20, 2016
Young Dental Manufacturing Co 1, LLC. Ms. Sarah Moore Director of Quality and Regulatory Affairs 13705 Shoreline Ct. East Earth City, Missouri 63045
Re: K153334
Trade/Device Name: Oral-B 5% Sodium Fluoride Varnish Regulation Number: 21 CFR 872.3260 Regulation Name: Cavity Varnish Regulatory Class: II Product Code: LBH Dated: April 14, 2016 Received: April 18, 2016
Dear Ms. Moore:
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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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.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 -
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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## Indications for Use
510(k) Number (if known) K153334
Device Name Oral-B 5% Sodium Fluoride Varnish
Indications for Use (Describe)
Oral-B 5% Sodium Fluoride Varnish is a fluoride-containing preparation for the treatment of dentinal hypersensitivity and for the reduction of post-operative sensitivity.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|--|
|-------------------------------------------------|--|
|X Prescription Use (Part 21 CFR 801 Subpart D)
| | Over-The-Counter Use (21 CFR 801 Subpart C)
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### 510(k) Summary K153334
| Sponsor: | Young Dental Manufacturing Co. 1 LLC<br>13705 Shoreline Ct. East<br>Earth City, MO 63045 |
|-----------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person: | Sarah Moore<br>Quality/Regulatory Affairs<br>Telephone: 314-372-8040<br>Fax: 314-344-0021 |
| Date: | May 06, 2016 |
| Trade Name: | Oral-B 5% Sodium Fluoride Varnish |
| Common Name: | Cavity Varnish |
| Classification Names<br>and References: | Varnish, Cavity<br>21 CFR 872.3260, LBH |
| Classification Panel: | Dental |
| Predicate Device(s): | VarnishAmerica 5% Sodium Fluoride Varnish, Medical<br>Products Laboratories, Inc. K040098, cleared February 4,<br>2004 |
| Purpose and Description | Oral-B 5% Sodium Fluoride Varnish is a fluoride-<br>containing preparation for the treatment of dentinal<br>hypersensitivity, and for the reduction of post-operative<br>sensitivity. 1mL of varnish contains 50 mg of sodium<br>fluoride, equivalent to 22.6 mg fluoride ion. Varnish is<br>sweetened with sucralose and Xylitol, and flavored.<br>Varnish and applicator are packaged together in a molded<br>opaque acclar tray, and sealed with a metallized foil. |
| Intended Use: | Oral-B varnish is a fluoride-containing preparation for the<br>treatment of dental hypersensitivity, and for the reduction<br>of post-operative sensitivity. |
| Technological Characteristics | The fundamental principle and primary mode of action of<br>both the Oral-B varnish and the predicate in reducing |
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dental hypersensitivity is the occlusion of open dentin tubules. Oral-b and the predicate exist as a viscous liquid that is able to be applied to the teeth using a brush or similar applicator. Both the Oral-B and the predicate employ 5% sodium fluoride as the source of fluoride ions for the formation of calcium fluoride which occludes the dentin tubules. Both use denatured alcohol as a significant component, providing fluidity for application and to promote quick drying on the tooth surface.
The technological difference between the Oral-B varnish and the predicate is the formulation of components. The Oral-B varnish uses a synthetic resin as the base material instead of the natural rosin used in the predicate. Oral-B also includes an additional base material, sweeteners, and flavoring agents.
# Comparison to Predicate Device:
The table below summarizes the similarities and differences between Oral-B 5% Sodium Fluoride Varnish and the predicate device:
| | Oral-B 5% Sodium Fluoride<br>Varnish | VarnishAmerica 5% Sodium<br>Fluoride Varnish-<br>Predicate Device |
|----------------------------------|---------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------|
| | K153334 | K040098 |
| Indications for use | Treatment of dental<br>hypersensitivity and Reduction<br>of post-operative sensitivity | Treatment of dental hypersensitivity<br>and Reduction of post-operative<br>sensitivity |
| Contraindications | Ulcerative gingivitis and<br>stomatitis | Ulcerative gingivitis and stomatitis |
| Mode of action | Dentin Tubule Occlusion | Dentin Tubule Occlusion |
| Method of application | Application of a thin coat of<br>varnish on tooth surfaces | Application of a thin coat of varnish<br>on tooth surfaces |
| Percentage of sodium<br>fluoride | 5% | 5% |
| Packaging | Varnish and applicator brush<br>placed in a molded opaque<br>acclar tray and closed with a<br>foil seal | Varnish and applicator brush placed<br>in a molded opaque acclar tray and<br>closed with a foil seal |
| Unit package | 0.4mL | 0.4mL |
| Base Material | Synthetic Rosin | Natural Rosin |
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Fluoride Release and Dentin Tubule Occlusion Performance Data (Nonclinical): Performance - Comparative bench testing with the predicate was carried out by independent laboratories. Bench testing confirmed that the fluoride release and tubule occlusion characteristics of Oral-B varnish are as expected and comparable to the predicate. . Shelf Life – The shelf life of this device is declared to be 24 months in accordance with defined protocols and acceptance specifications and have provided the rationale for establishment of this shelf life. . Biocompatibility - Oral-B varnish and the predicate were tested for cytotoxicity per ISO 10993-5 with equivalent results. Oral-B varnish was also tested for irritation and sensitization per ISO 10993-10. Test results provide evidence of biocompatibility. Performance Data (Clinical): Clinical data were not needed for these devices to show substantial equivalence. Conclusions: The information presented in this submission including composition and indications for use, together with biocompatibility and non-clinical performance testing establish that Oral-B varnish is substantially equivalent to the predicate.
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.