K180107 · Blue Sky Bio, LLC · NXC · Feb 9, 2018 · Dental
Device Facts
Record ID
K180107
Device Name
Blue Sky Bio Aligner
Applicant
Blue Sky Bio, LLC
Product Code
NXC · Dental
Decision Date
Feb 9, 2018
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 872.5470
Device Class
Class 2
Attributes
Software as a Medical Device, Therapeutic, 3rd-Party Reviewed
Indications for Use
Blue Sky Bio Aligners are a series of clear, lightweight, plastic appliances indicated for the treatment of tooth malocclusions in patients with permanent dentition (i.e., all second molars). Utilizing a series of incremental tooth movements, it sequentially positions teeth by way of continuous gentle force.
Device Story
Clear, thermoformed plastic aligners; used for orthodontic treatment of tooth malocclusions. Dental professional uses standard PC and dental software to assess patient teeth, take molds, and prescribe treatment; Blue Sky Bio designs series of trays based on prescription; physician reviews/approves model scheme. Trays provide continuous gentle force to sequentially position teeth; patient removes trays as needed. Treatment monitored by dental professional from first to final aligner. Benefits include aesthetic, gradual tooth realignment.
Clinical Evidence
No clinical data. Bench testing not performed due to nature of device; material biocompatibility and performance supported by predicate clearance (K062828). Software verification and validation testing conducted.
Technological Characteristics
Clear, thermoformed plastic aligners. Principle: incremental tooth movement via continuous force. Materials: Essix thermoplastic (cleared via K062828). Software: module for ordering/processing integrated with Blue Sky Plan. Connectivity: standard PC-based workflow.
Indications for Use
Indicated for treatment of tooth malocclusions in patients with permanent dentition (all second molars).
Regulatory Classification
Identification
An orthodontic plastic bracket is a plastic device intended to be bonded to a tooth to apply pressure to a tooth from a flexible orthodontic wire to alter its position.
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Blue Sky Bio LLC % Dave Yungvirt Official Correspondent Third Party Review Group, LLC The Old Station House 24 Lackawanna Place Millburn, New Jersey 07041
Re: K180107
Trade/Device Name: Blue Sky Bio Aligner Regulation Number: 21 CFR 872.5470 Regulation Name: Orthodontic plastic bracket Regulatory Class: Class II Product Code: NXC Dated: January 11, 2018 Received: January 16, 2018
Dear Dave Yungvirt:
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.
February 9, 2018
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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 device-related 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.
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.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
Mary S. Runner -S
For Tina Kiang, Ph.D Acting Division Director Science and Policy 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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Section 4 Indications for Use
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# Indications for Use
510(k) Number (if known)
Device Name Blue Sky Bio Aligners
Indications for Use (Describe)
Blue Sky Bio Aligners are a series of clear, lightweight, plastic appliances indicated for the treatment of tooth malocclusions in patients with permanent dentition (i.e., all second molars). Utilizing a series of incremental tooth movements, it sequentially positions teeth by way of continuous gentle force.
Type of Use (Select one or both, as applicable)
> Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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# Section 5 510(k) Summary or Statement
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#### 510(k) Summary
#### Blue Sky Bio Aligners
Blue Sky Bio LLC 888 E Belvidere Rd Suite 212 Grayslake. IL 60030
718-376-0422
#### www.blueskybio.com
Contact Person: Albert Zickmann
azickmann@blueskybio.com
| General Information | |
|----------------------|-----------------------------------------------------|
| Trade Name | Blue Sky Bio Aligners |
| Common Name | Sequential Aligner |
| Predicate 510(k) | 3M Clear Tray Aligner K163689 |
| Reference Predicates | Blue Sky Plan K090607 and Dentsply Essix<br>K062828 |
| Product Code | NXC, LLZ |
| Regulation No. | 872.5470 Orthodontic Plastic Bracket |
| Classification | Class II |
#### Device Description:
Blue Sky Bio Aligners are a series of clear plastic aligners that offer a solution for aesthetic orthodontic treatment by utilizing a set of removable aligners to correct tooth malocclusions.
A dental health professional (e.g. orthodontist or dentist), using a standard personal computer prescribes the Blue Sky Bio Aligners based on an assessment of the patient's teeth, determines the course of treatment with the system, takes molds of the patient's teeth and completes a prescription form using standard dental software used for tooth alignment, Blue Sky Bio then designs a series of plastic trays intended to gradually realign the patient's teeth in accordance with the physician's prescription using standard dental software used for tooth alignment. The prescribing physician reviews and approves the model scheme before the molds are produced. Once approved, Blue Sky Bio produces trays, which are formed of clear, then, thermoformed plastic. The trays are sent back to the dental health professional who then provides them to the patient, confirming fit and design. Over a period of time, additional trays are provided sequentially to the patient by the dental health professional to gradually move the target teeth to the designed position. The dental health professional monitors treatment from the moment the first aligner is delivered to when the final aligner is delivered. The trays are held in place by pressure and can be removed by the patient at any time.
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The technology is essentially identical to that used by a number of sequential aligner systems including the predicate device, 3M Clear Tray Aligners.
## Indications for Use:
Blue Sky Bio Aligners are a series of clear, lightweight, plastic appliances indicated for the treatment of tooth malocclusions in patients with permanent dentition (i.e., all second molars). Utilizing a series of incremental tooth movements, it sequentially positions teeth by way of continuous gentle force.
## Technological Characteristics:
Treatment of tooth malocclusions via a series of plastic appliances that incrementally moves the teeth to a desired final position is the technological principle for both the subject device and the predicate device. A comparison between the technological characteristics of Blue Sky Bio Aligners and that of 3M Clear Tray aligners has been performed. The results of this comparison demonstrate that the design, technology, materials, and composition of Blue Sky Bio Aligners are substantially equivalent to the predicate devices.
## Mechanism of Action:
The mechanism of action is similar to the predicate devices and supports a determination of substantial equivalence. Orthodontic tooth movement occurs through forces applied to the teeth by the appliance to the dentition as each tooth follows the programmed displacement based on a dental health professional's prescription.
#### Performance Testing:
Bench testing was not performed due to the difficulty in evaluating this type of dental device in a laboratory setting. The material used for the aligners is Essix from Dentsply which has a 510k clearance as an aligner material (K062828, MQC unclassified) so no performance tests were done on it.
## Biocompatibility Testing:
The material used for the Blue Sky Bio aligners has a 510k clearance as an aligner material so no biocompatibility testing was performed.
## Software Verification and Validation Testing:
Software verification and validation testing were conducted on the software that facilitates ordering and processing of the Blue Sky Bio Aligners to support the device is as safe and effective as the predicates. Documentation was provided as recommended by FDA's Guidance for Industry and FDA staff, "Guidance for the Content of Premarket Submission for Software Contained in Medical Devices." The software for this device was considered as a "moderate" level of concern. This software in a module which can be installed along with Blue Sky Bio Plan (K090607). The software verification and validation testing of the aligner showed that the addition of the aligner module did not change the functions of Blue Sky Bio Plan.
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# Predicate Device Comparison Table
| | Blue Sky Bio Aligners | 3M Clear Tray Aligners<br>K163689 | Blue Sky Plan<br>K090607 | Dentsply Essix<br>K062828 | | | | hardware using<br>a Windows<br>operating<br>system. | |
|-----------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------|-----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Regulation<br>Number | 21 CFR 872.5470 | 21 CFR 872.5470 | 21 CFR 870.2050 | unclassified | Mode of<br>action | Orthodontic tooth<br>movement<br>occurs through forces<br>applied<br>by the appliance to the<br>dentition as each tooth<br>follows the programmed<br>displacement based on a<br>doctor's prescription.<br>Imaging software has<br>added module for<br>ordering and processing<br>of aligners. | Orthodontic tooth<br>movement<br>occurs through forces<br>applied<br>by the appliance to the<br>dentition as each tooth<br>follows the<br>programmed<br>displacement based on a<br>doctor's prescription. | Imaging<br>software | Orthodontic<br>tooth<br>movement<br>occurs<br>through<br>forces applied<br>by the<br>appliance to<br>the<br>dentition as<br>each tooth<br>follows the<br>programmed<br>displacement<br>based on a<br>doctor's<br>prescription. |
| Device<br>Classification<br>Name/Device<br>Common<br>Name | Orthodontic Plastic<br>Bracket | Orthodontic Plastic<br>Bracket | Picture archiving<br>and<br>communications<br>system | Aligner<br>material | Material | Essix Thermoplastic | Thermoplastic | none | Essix<br>Thermoplastic |
| Product Code | NXC, LLZ | NXC | LLZ | NXC | Material<br>Properties | Demonstrates sufficient<br>tensile strength,<br>elasticity,<br>ductility, chemical<br>resistance,<br>and clarity for use as a<br>clear tray aligner.<br>510k cleared sheet<br>material for this<br>indication. | Demonstrates<br>sufficient<br>tensile strength,<br>elasticity,<br>ductility, chemical<br>resistance,<br>and clarity for use as a<br>clear tray aligner. | | Demonstrates<br>sufficient<br>tensile<br>strength,<br>elasticity,<br>ductility,<br>chemical<br>resistance,<br>and clarity for<br>use as a clear<br>tray aligner.<br>510k cleared<br>sheet<br>material for<br>this<br>indication. |
| Classification | II | II | II | none | Function of<br>the software | Software used for<br>ordering workflow.<br>Ortho module facilitates<br>ordering and processing<br>of the aligners.<br>Blue Sky Plan™ is dental<br>imaging software which | Software used for<br>ordering workflow.<br>Facilitates ordering and<br>processing of the<br>aligners. | Blue Sky Plan™ is<br>dental imaging<br>software which<br>loads DICOM<br>images and<br>provides 3D<br>visualization, 2D<br>image<br>reformation for | none |
| Indications<br>for use | Blue Sky Bio Aligners are<br>a series of clear,<br>lightweight, plastic<br>appliances indicated for<br>the treatment of tooth<br>malocclusions in patients<br>with permanent<br>dentition (i.e., all second<br>molars). Utilizing a series<br>of incremental tooth<br>movements, it<br>sequentially positions<br>teeth by way of<br>continuous gentle force. | The 3M Clear Tray<br>Aligner System is a<br>series of clear,<br>lightweight, plastic<br>appliances indicated for<br>the treatment of tooth<br>malocclusions in<br>patients with<br>permanent dentition<br>(i.e., all second molars).<br>Utilizing a series of<br>incremental tooth<br>movements, it<br>sequentially positions<br>teeth by way of<br>continuous gentle<br>force. | Blue Sky Plan is<br>intended to be<br>used as<br>conversion<br>software for<br>Computed<br>Tomography<br>(CT)<br>generated<br>DICOM images<br>into a format<br>that allows a<br>dentist to assess<br>the anatomic<br>topography of<br>the maxilla and<br>mandible as well<br>as location of<br>important<br>structures. It<br>allows the<br>information to<br>be<br>used for pre-<br>surgical<br>treatment<br>planning of<br>dental implant<br>procedures. The<br>Blue Sky Plan<br>software<br>is deployed on<br>standard<br>personal<br>computer | Aligner<br>materials are<br>indicated for<br>the<br>fabrication of<br>orthodontic<br>appliances. | | | | | |
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| | loads DICOM images and<br>provides 3D<br>visualization, 2D image<br>reformation for surgical<br>implant planning and<br>stent fabrication, which<br>allows the virtual<br>position of implants from<br>the images supplied by<br>computerized<br>tomography. | surgical implant<br>planning and<br>stent<br>fabrication,<br>which<br>allows the<br>virtual position<br>of implants from<br>the images<br>supplied by<br>computerized<br>tomography. | |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|
| Design | Image: clear aligner | Image: clear aligner | |
## Conclusion:
Blue Sky Bio Aligners have substantially equivalent Indications for Use as the identified predicate and reference devices.
Blue Sky Bio Aligners are as safe, as effective, and are substantially equivalent to the predicate devices in indications for use, design, technological characteristics, mechanism of action, performance, materials and biocompatibility. Blue Sky Bio Aligners are made from reference predicate device Essix from Dentsply so there can be no differences between them.
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.