430 Torque High-Speed Handpiece Series - 430 SWL Torque High Speed Handpiece, 430 SW Torque High Speed Handpiece
Applicant
Dentalez, Inc.
Product Code
EFB · Dental
Decision Date
Apr 8, 2016
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 872.4200
Device Class
Class 1
Indications for Use
The 430 Torque High-Speed Handpiece Series are used by trained dental professionals for a variety of procedures including but not limited to caries and amalgam removal, restorative work and crown preparation.
Device Story
430 Torque High-Speed Handpiece Series (SWL fiber optic and SW non-fiber optic versions) are pneumatically driven, handheld dental instruments. Devices connect to ISO Type 2 or 3 quick-disconnect couplers; operate at 350,000–450,000 RPM using 38-43 PSI air pressure. Features include push-button autochuck, lubefree ceramic bearings, and stainless steel/aluminum construction. SWL version includes lead-free, multi-core solid rod fiber optics for oral cavity illumination. Used by dentists for caries/amalgam removal, restorative work, and crown preparation. Higher rotor size compared to predicates provides increased cutting torque (up to 20 watts power; .269 oz.-in. stall torque). Aesthetic modification includes bead-blasted satin finish option. Devices are autoclavable.
Clinical Evidence
Bench testing only. Performance testing conducted in compliance with ISO 14457:2012 (Dentistry – Handpieces and motors). Sterilization validation performed per ANSI/AAMI ST79:2010, AAMI/ANSI/ISO 14937:2009, and ANSI/AAMI ST81:2004. Risk analysis performed per ISO 14971:2012.
Technological Characteristics
Pneumatic air-driven turbine; stainless steel and aluminum construction; lubefree ceramic bearings (K905155); push-button autochuck. ISO Type 2/3 coupler compatibility. Fiber optics: lead-free, multi-core solid rod. Sterilization: Autoclavable. Standards: ISO 14457:2012, ISO 14971:2012, ANSI/AAMI ST79, AAMI/ANSI/ISO 14937, ANSI/AAMI ST81.
Indications for Use
Indicated for trained dental professionals performing procedures including caries removal, amalgam removal, restorative work, and crown preparation.
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.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
May 4,2016
Dentalez, Inc. Mr. Dan Laskowitz Engineering/Quality Manager 1816 Colonial Village Lane Lancaster, Pennsylvania 17601
Re: K153411
Trade/Device Name: 430 Torque High-speed Handpiece Series Regulation Number: 21 CFR 872.4200 Regulation Name: Dental Handpiece and Accessories Regulatory Class: Class I Product Code: EFB Dated: March 7, 2016 Received: March 8, 2016
Dear Mr. Lashkowitz:
This letter corrects our substantially equivalent letter of April 8, 2016.
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 to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21
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CFR Part 807); labeling (21 CFR Part 801); medical device reporting (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.
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" (21CFR 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,
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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) K153411
Device Name
430 Torque High Speed Handpiece Series - 430 SWL Torque High Speed Handpiece, 430 SW Torque High Speed Handpiece
Indications for Use (Describe)
The 430 Torque High-Speed Handpiece Series are used by trained dental professionals for a variety of procedures including but not limited to caries and amalgam removal, restorative work and crown preparation.
Type of Use (Select one or both, as applicable)
| <label><input checked="" type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D)</label> |
|-------------------------------------------------------------------------------------------------|
| <label><input type="checkbox"/> Over-The-Counter Use (21 CFR 801 Subpart C)</label> |
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430 Torque High-Speed Handpiece Series
#### l. SUBMITTER
DentalEZ Inc., StarDental Division 1816 Colonial Village Lane Lancaster, PA 17601 Phone: (717) 291-1161 Fax: (717) 391-2757 Contact Person: Dan Laskowitz, Engineering/Quality Manager Kay Engle, Regulatory Affairs Supervisor/QA Date prepared: March 7, 2016
## II. DEVICE
Name of Device: 430 Torque High Speed Handpiece Series comprised of: 430 SWL Torque High Speed Handpiece 430 SW Torque High Speed Handpiece Common or Usual Name: High Speed Handpiece Classification Name: Handpiece, Air-powered, Dental (21 C.F.R. § 872.4200) Regulatory Class: I Product Code: EFB
### III. PREDICATE DEVICE:
Primary predicate: 430 SW Non-Fiber Optic Handpiece (K902402) Reference predicate: 430 Series High Speed Handpiece (K982593 and K960719)
### IV. DEVICE DESCRIPTION:
The 430 Torque High-Speed Handpiece Series consists of a fiber optic high speed handpiece, marketed as a SWL and a non-fiber optic handpiece, marketed as a SW handpiece. Each is a pneumatically driven hand- held device that is capable of reaching rotational speeds of 350,000 to 450,000 rpms at a recommended air pressure of 38-43 PSI. The series delivers on average up to 20 watts of power providing .269 oz.-in. of stall torque.
The handpieces are constructed of stainless steel, including the internal air and water tubes which provide drive air to the turbine assembly and cooling water to the work site. The stainless steel and aluminum air driven turbine assembly provides spin to the bur, and incorporates lubefree ceramic bearings (K905155) and a push button autochuck. The rotor is larger than the rotor of the predicate, yielding a higher cutting torque.
The fiber optics in the SWL version of the handpiece are lead-free, multi-core glass rod that transmit light from the fiber optic swivel coupler to the oral cavity.
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The 430 Torque High-Speed handpiece Series can be assembled to quick disconnect couplers that are ISO Type 3 and ISO Type 2 connections, available as fiber optic or non-fiber optic versions, using a halogen bulb or LED technology. All couplers are autoclavable with the exception of the LED coupler that incorporates the electronics internally.
The following describes the improvements that have been made to the 430 Series High-Speed Handpiece and 430 SW Non-Fiber Optic Handpieces since the last 510(k) clearances, which have also been incorporated into the 430 Torque High-Speed Handpiece Series:
- 1. The fiber-optics used in the SWL version of the handpieces changed from bundled fiber optics to twin-fused solid rod fiber optics.
- 2. The finish of the outer housings on the handpieces has been modified to have a dull appearance (satin) through a process called bead blasting. This is an aesthetic change only and does not affect the performance of the handpiece. The finish of the outer housing on the handpieces continues to be available in the glossy finish as cleared on the predicate devices.
# V. INDICATIONS FOR USE:
The 430 Torque High Speed Handpiece Series are used by trained dental professionals for a variety of procedures including but not limited to caries and amalgam removal, restorative work and crown preparations.
# VI. COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH THE PREDICATE DEVICE:
The 430 Torque High-Speed Handpieces and the primary predicate device are both air-driven handpieces used to perform a variety of dental procedures. The proposed devices and the primary predicate device have the same technological characteristics:
- Single water spray without cooling air
- Push button autochuck turbine assembly
- Bur extraction force ●
- Use of the same materials ●
- No lubrication required ●
- Autoclavable
- Connect to coupler allow for ease of rotation on tubing ●
The following technological differences exist between the 430 Torque High-Speed Handpiece and the primary predicate:
- . Free run speed (handpiece speed in RPM with no load applied)
- Power .
- Stall torque ●
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The proposed 430 SWL Torque High-Speed Handpiece and the reference predicate device have the same technological similarities and differences as noted above for the primary predicate. In addition, the reference predicate incorporates fiber optics for illumination of the work area. The fiber optics used in the reference predicate device are incorporated in the proposed 430 SWL Torque High-Speed Handpiece.
The following table summarizes the comparison of the 430 Torque High-Speed Handpieces Series to the primary predicate device and reference predicate for indications for use and technological characteristics.
| Indications for use and technological characteristics. | | | |
|--------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device | Submission device<br>K153411 430 Torque High<br>Speed Handpiece Series | Primary predicate<br>K902402 SW Non-Fiber<br>Optic Handpiece | Reference predicates<br>K982593 and K960719 430<br>Series High Speed<br>Handpiece |
| Indications for<br>Use | The 430 Torque High Speed<br>Handpiece Series are used<br>by trained dental<br>professionals for a variety<br>of procedures including but<br>not limited to caries and<br>amalgam removal,<br>restorative work and<br>crown preparations. | High-speed dental<br>handpieces used by trained<br>dental professionals for<br>drilling in the oral cavity for<br>procedures including but<br>not limited to caries<br>removal, restorative work<br>and crown preparations. | High-speed dental<br>handpieces used intraorally<br>by trained dental<br>professionals for drilling<br>and preparation of dental<br>caries for restoration such<br>as fillings. |
| Material<br>composition | Stainless steel, aluminum;<br>optional bead blasted<br>outer surface | Stainless steel, aluminum | Stainless steel, aluminum |
| Components | High speed pneumatic<br>driven handpiece with<br>option of twin fused solid<br>rod fiber optic with<br>ceramic lube free bearings | High speed pneumatic<br>driven handpiece with<br>ceramic bearings | High speed pneumatic<br>driven handpiece with<br>ceramic bearings with<br>option of bundled fiber<br>optics; autochuck and lube<br>free bearings |
| Biocompatibility | Identical material<br>composition and<br>manufacturing process to<br>the predicates | The design incorporates<br>either 400 series stainless<br>steel or 300 series stainless<br>steel for device<br>construction. These<br>materials are known for<br>their corrosion resistance<br>and are biocompatible with<br>tissue encountered during<br>use. | The design incorporates<br>either 400 series stainless<br>steel or 300 series stainless<br>steel for device<br>construction. These<br>materials are known for<br>their corrosion resistance<br>and are biocompatible with<br>tissue encountered during<br>use. These materials are<br>identical to the predicate<br>430 series high speed |
| | | | handpiece currently<br>manufactured by Star<br>Dental. |
| Sterilization | Sterilization validation in<br>accordance with<br>ANSI/AAMI ST79:2010 &<br>A4:2013, AAMI/ANSI/ISO<br>14937:2009 and<br>ANSI/AAMI ST81:2004<br>(R2010) | Sterilization validation<br>report references AAMI TIR<br>No. 12-1994 | Sterilization validation<br>carried out in accordance<br>with the FDA June 1996<br>guidance document to<br>dental handpiece<br>manufacturers. |
| Performance | Capable of reaching<br>rotational speeds of<br>350,000 to 450,000 rpms<br>at a recommended air<br>pressure of 38-43 PSI;<br>delivers on average up to<br>20 watts of power<br>providing .269 oz.-in. of<br>stall torque.<br>Performance testing in<br>compliance with ISO<br>14457:2012 Dentistry -<br>Handpieces and motors | Capable of reaching<br>rotational speeds of<br>430,000 rpms at a<br>recommended air pressure<br>of 30 PSI; delivers on<br>average 14 watts of power<br>providing .181 oz.-in. of<br>stall torque.<br>Performance testing in<br>compliance with ISO 7785-<br>1 Dental Handpieces – Part<br>1: High-speed air turbine<br>handpieces | Capable of reaching<br>rotational speeds of<br>430,000 rpms at a<br>recommended air pressure<br>of 34 PSI; delivers on<br>average 14 watts of power<br>providing .181 oz.-in. of<br>stall torque.<br>Performance testing in<br>compliance with ISO 7785-<br>1 Dental Handpieces – Part<br>1: High-speed air turbine<br>handpieces |
| Risk analysis | ISO14971:2012 Medical<br>devices - Application of<br>risk management to<br>medical devices | Risk analysis at time of<br>submission unknown.<br>Current risk analysis per<br>ISO14971:2012 –<br>Application of risk<br>management to medical<br>devices. | Risk analysis at time of<br>submission unknown.<br>Current risk analysis per<br>ISO14971:2012 –<br>Application of risk<br>management to medical<br>devices. |
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## VII. PERFORMANCE DATA
Performance testing was completed in accordance with ISO 14457:2012 Dentistry – Handpieces and motors.
Sterilization validation for the sterilization of the handpieces was performed in accordance to ANSI/AAMI ST79:2010 & A4:2013, AAMI/ANSI/ISO 14937:2009 and ANSI/AAMI ST81:2004 (R2010).
A risk analysis for the 430 Torque High-Speed Handpiece Series was developed using ISO14971:2012.
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# VIII. CONCLUSION
Based upon the comparison of technological characteristics, demonstrated through bench testing and intended use, the 430 Torque High-Speed Handpiece Series is substantially equivalent to the predicate devices.
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.