This Highspeed Airturbine Handpiece is intended for removal of carious material, cavities and crow preparations, removal of filings, processing of tooth, restoration of surfaces and as a surgical tool for third molar removal procedures It is designed for use by a trained professional in the field of general dentistry.
Device Story
Highspeed Airturbine Handpiece is an air-powered, reusable dental tool; connects to dental unit via hose coupling to drive high-speed turbine. Used by trained general dentistry professionals in clinical settings for tooth preparation, restoration, and surgical removal of third molars. Device features push-button chuck for bur retention; available with or without fiber-optic lighting. Healthcare providers select specific head diameters (9.5mm, 11mm, 12.5mm) and operating speeds (350k, 380k, 480k rpm) based on patient condition. Device is sterilized via pre-vacuum autoclave. Output is mechanical rotation of dental bur for tissue/material removal; aids in restorative and surgical procedures.
Clinical Evidence
No clinical study included. Bench testing only. Compliance verified against ISO 10993-5 (cytotoxicity), ISO 10993-10 (irritation/sensitization), ISO 9168 (hose connectors), ISO 14457 (handpieces/motors), and ASTM D4169 (shipping). Sterilization validated per FDA reprocessing guidance.
Technological Characteristics
Air-driven dental handpiece; materials: brass and aluminum. Features: push-button chuck, optional fiber-optic light (>7000 LUX), water cooling spray. Operating pressure: 245 kPa. Speeds: 350,000–480,000 rpm. Head angles: 18 and 45 degrees. Sterilization: pre-vacuum autoclave. Connectivity: hose connector to dental unit. Standards: ISO 14457, ISO 9168, ISO 10993.
Indications for Use
Indicated for removal of carious material, cavity/crown preparation, removal of filings, tooth processing, surface restoration, and third molar removal. Designed for use by trained general dentistry professionals.
Regulatory Classification
Identification
A dental handpiece and accessories is an AC-powered, water-powered, air-powered, or belt-driven, hand-held device that may include a foot controller for regulation of speed and direction of rotation or a contra-angle attachment for difficult to reach areas intended to prepare dental cavities for restorations, such as fillings, and for cleaning teeth.
High-speed Turbine Handpieces for Single Use (K172543)
Submission Summary (Full Text)
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
November 8, 2021
Beijing Dongbo Dental Handpiece Co., Ltd. % Diana Hong General Manager Mid-Link Consulting Co.,Ltd P.O.Box 120-119 Shanghai, 200120 CHINA
Re: K202371
Trade/Device Name: Highspeed Airturbine Handpiece Regulation Number: 21 CFR 872.4200 Regulation Name: Dental Handpiece And Accessories Regulatory Class: Class I, reserved Product Code: EFB Dated: August 5, 2021 Received: August 10, 2021
Dear Diana Hong:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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 with all the Act's
{1}------------------------------------------------
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) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; 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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). 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 (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Michael E. Adjodha, M.ChE. Assistant Director DHT1B: Division of Dental and ENT Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
# Indications for Use
510(k) Number (if known)
K202371
Device Name Highspeed Airturbine Handpiece
Indications for Use (Describe)
This Highspeed Airturbine Handpiece is intended for removal of carious material, cavities and crow preparations, removal of filings, processing of tooth, restoration of surfaces and as a surgical tool for third molar removal procedures It is designed for use by a trained professional in the field of general dentistry.
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) |
## CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
## *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
{3}------------------------------------------------
# 510(k) Summary
This 510(k) Summary is being submitted in accordance with requirements of Title 21, CFR Section 807.92.
The assigned 510(k) Number: K202371
- 1. Date of Preparation: November 7, 2021
- 2. Sponsor Identification
## Beijing Dongbo Dental Handpiece Co., Ltd.
3F, Building 3, No. 17, First Jinmayuan Street, Shunyi District, Beijing, China
Establishment Registration Number: 3515005486
Contact Person: Chao Hao
Position: Administration office
Tel: +86-10-80479758
Fax: +86-10-80478329
Email: haochao123459@126.com
- 3. Designated Submission Correspondent
Ms. Diana Hong (Primary Contact Person)
Ms. Huifan Wang (Alternative Contact Person)
## Mid-Link Consulting Co., Ltd.
P.O. Box 120-119, Shanghai, 200120, China
Tel: +86-21-22815850,
Fax: +1-360-925-3199
Email: info@mid-link.net
{4}------------------------------------------------
- 4. Identification of Proposed Device
Trade Name: Highspeed Airturbine Handpiece Common Name: Handpiece, Air-powered, Dental Regulatory Information Classification Name: Dental Handpiece and Accessories Classification: I; Product Code: EFB; Regulation Number: 21CFR 872.4200 Review Panel: Dental
#### Indication for Use:
This Highspeed Airturbine Handpiece is intended for removal of carious material, cavities and crow preparations, removal of filings, processing of tooth, restoration of surfaces and as a surgical tool for third molar removal procedures
It is designed for use by a trained professional in the field of general dentistry.
### Device Description
The Highspeed Airturbine Handpiece is air driven dental handpieces for the use by a trained professional in the field of general dentistry. The devices are air-powered handpieces that are reusable and ergonomically shaped. The devices can be sterilized by the pre-vacuum Autoclave methods. Through the coupling connected to a dental unit, the proposed dental handpiece receive air for functionality of the high speed turbine.
- ર. Identification of Predicate Device
Predicate device 510(k) Number: K141576 Product Name: Maxima PRO 45L Reference device 510(k) Number: K172543 Product Name: High-speed Turbine Handpieces for Single Use
- 6. Non-Clinical Test Conclusion
Non clinical tests were conducted to verify that the proposed device met all design specifications as was Substantially Equivalent (SE) to the predicate device. The test results demonstrated that the proposed device complies with the following standards:
{5}------------------------------------------------
- > ISO 10993-5: 2009 Biological Evaluation Of Medical Devices - Part 5: Tests For In Vitro Cytotoxicity
- > ISO 10993-10:2010 Biological Evaluation Of Medical Devices - Part 10: Tests For Irritation And Skin Sensitization
- > ISO 9168:2009 Dentistry - Hose Connectors For Air Driven Dental Handpieces
- > ISO 14457:2012 Dentistry - Handpieces And Motors
- > ASTM D4169:2016 Standard Practice For Performance Testing Of Shipping Containers And Systems
- > Guidance for Industry and FDA Staff- Dental Handpieces- Premarket Notification [510(k)] Submissions
- > Cleaning and Sterilization Validation per the FDA Reprocessing Guidance Document
- 7. Clinical Test Conclusion
No clinical study is included in this submission.
{6}------------------------------------------------
#### 8. Substantially Equivalent (SE) Comparison
| ITEM | Proposed Device | Predicate Device | Reference Device | Remark |
|-------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|
| | | K141576 | K172543 | |
| Product Code | EFB | EFB | EFB | Same |
| Classification | Class I | Class I | Class I | Same |
| Regulation<br>Number | 21 CFR 872.4200 | 21 CFR 872.4200 | 21 CFR 872.4200 | Same |
| Indication for<br>use | This Highspeed Airturbine<br>Handpiece is intended for<br>removal of carious<br>material, cavities and crow<br>preparations, removal of<br>filings, processing of tooth,<br>restoration of surfaces and<br>as a surgical tool for third<br>molar removal procedures<br>It is designed for use by a<br>trained professional in the<br>field of general dentistry. | This air-powered dental<br>handpiece is intended for<br>removal of carious material,<br>cavities and crow<br>preparations, removal of<br>filings, processing of tooth,<br>restoration of surfaces and as<br>a surgical tool for third molar<br>removal procedures<br>It is designed for use by a<br>trained professional in the<br>field of general dentistry. | High-speed Turbine<br>Handpieces for Single Use<br>are intended for removing<br>carious material, excess<br>filling material, cavity and<br>crown preparation, finishing<br>tooth preparations and<br>restorations, root canal<br>preparations and polishing<br>teeth. | Same |
| Principle of<br>operation | Air power | Air power | Air power | Same |
| Patient-contact<br>material | Brass<br>Aluminum | Round Copper<br>Cr-N/Cr Coating<br>Round Steel<br>Cr Coating<br>Ecobrass | Brass<br>Aluminum<br>ABS | Different |
| Air/water<br>spray | water | water | Water | Same |
| Water cooling | Yes | Yes | Yes | Same |
| Fiber optics | With/without light | With light | Without light | Different |
| Type of chuck | Push Button | Push Button | Push Button | Same |
| Light intensity | More than 7000 LUX | Approx. 25,000 LUX | NA | Different |
| Type<br>of<br>connectors | Hose connection | Hose connection | Hose connection | Same |
| Speed in rpms | 350,000; 380,000; 480,000<br>rpm | 380,000~420,000 rpm | 350,000; 380,000rpm | Different |
| Bur retention<br>force (N cm) | 22~45 | Up to 24 | >22N/<br>22~45N | SE |
| Head<br>diameter(mm) | 12.5, 11, 9.5 | 12.5 | Unknown | Different |
| Operating<br>Pressure | 245Kpa (~35.53psi) | 40psi | 245Kpa | Same |
| Head angle | 18 and 45 degree | 45 degree | 18 and 45 degree | Same |
| Single<br>use/Reuse | Reuse | Reuse | Single-use | Same |
| Sterilization | Autoclave sterilization | Gravity steam autoclave | Radiation | Different |
| Cytotoxicity | Biocompatibility | No Cytotoxicity | No Cytotoxicity | Different |
| Intracutaneous<br>Reactivity | demonstrated by K172543 | No Intracutaneous Reactivity | No Intracutaneous Reactivity | |
| Skin<br>Sensitization | | No Skin Sensitization | No Skin Sensitization | |
| Performance | Compliance with ISO<br>14457:2012 and ISO<br>9168:2009 | Compliance with ISO<br>14457:2012 and ISO<br>9168:2009 | Compliance with ISO<br>14457:2012 and ISO<br>9168:2009 | Same |
## Table 1 Comparison of Technology Characteristics
4 / 6
{7}------------------------------------------------
## Different- Patient-contact material
The patient-contact materials of the proposed device are different from the predicate devices, but the brass and aluminum of the proposed device is the same as the brass and aluminum of reference device, which is also manufactured by Beijing Dongbo Dental Handpiece Co., Ltd. The biocompatibility test has been conducted on the K172543 and the test result comply with the requirements of ISO 10993. Therefore, the different will not affect the safety and effectiveness of the proposed device
## Different- Fiber optics
The fiber optics of the proposed device are different from the predicate device or reference device. The proposed device contains handpieces with and without lighting function. However, the predicate device is handpieces with light and the reference device is handpieces without light. Therefore, the fiber optics (with/without light) will not affect the safety and effectiveness of the proposed device.
#### Different- Light intensity
The light intensity of the proposed device is different from the predicate device. However, the light intensity of the proposed device meet the requirement of ISO 14457. And the proposed device shall be operated by trained healthcare professions. Therefore, the different will not affect the safety and effectiveness of the proposed device. Therefore, the different will not affect the safety and effectiveness of the proposed device.
## Different- Speed in rpms
The speeds of the proposed device are different from the predicate device. The 480,000rpm are out range of the predicate device. The different speeds will be selected by physician per patients' condition.
{8}------------------------------------------------
In addition, the performance test has been conducted on proposed device according to ISO 14457 and the test results meet the acceptable criteria. Therefore, the different will not affect the safety and effectiveness of the proposed device.
## Different- Head diameter
The head diameter of the proposed device is different from the predicate device. The 11mm and 9.5mm are out range of the predicate device. However, the difference is just in physical specification and different specification will be selected by physician per patients' condition. Therefore, the different will not affect the safety and effectiveness of the proposed device.
## Different- Sterilization
The steam sterilization method of the proposed device are different with the predicate device. However, the sterilization parameters comply with ISO 17665 standard. Therefore, the difference will not affect the safety and effectiveness of the proposed device.
## Different- Biocompatibility
The patient-contact materials of the Highspeed Airturbine Handpiece are identical device to that of the legally marketed device, High-speed Turbine Handpieces for Single Use, as cleared in K172543, which is also manufactured by Beijing Dongbo Dental Handpiece Co., Ltd. Therefore, the biocompatibility for proposed device is demonstrated by reference device (K172543). The biocompatibility testing for K172543 was evaluated and the tests results complied with ISO 10993 standards. Therefore, the patient-contact materials of the proposed device will not have the adverse effects on patients. Therefore, this difference does not affect the safety and effectiveness of the proposed device.
#### 9. Substantially Equivalent (SE) Conclusion
Based on the comparison and analysis above, the proposed devices are determined to be Substantially Equivalent (SE) to the predicate devices.
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
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.