LARES ULTRALITE PROSTYLE HIGH-SPEED DENTAL HANDPIECES, LARES EURO PROSTYLE HIGH-SPEED DENTAL HANDPIECES, LARES TURBO+ PR

K141221 · Lares Research, Inc. · EFB · Oct 28, 2014 · Dental

Device Facts

• Record ID: K141221
• Device Name: LARES ULTRALITE PROSTYLE HIGH-SPEED DENTAL HANDPIECES, LARES EURO PROSTYLE HIGH-SPEED DENTAL HANDPIECES, LARES TURBO+ PR
• Applicant: Lares Research, Inc.
• Product Code: EFB · Dental
• Decision Date: Oct 28, 2014
• Decision: SESE
• Submission Type: Abbreviated
• Regulation: 21 CFR 872.4200
• Device Class: Class 1
• Attributes: Therapeutic

Intended Use

The Lares Research 557 and 757 ProStyle model product family of high-speed handpieces is intended to be used by licensed dental professionals to reduce hard tooth structure, carry out cavity preparations and perform restorative dentistry.

Device Story

Air-driven high-speed turbine dental drills; used by licensed dental professionals in clinical settings for tooth structure reduction, cavity preparation, and restorative dentistry. Device connects to standard ISO 9168 Type 2 or optional Kavo Multi-Flex compatible dental unit hoses. Operates via drive air, cooling air, and water delivered to the cutting bur area; optional solid glass fiber optic element provides illumination. Features push-button chuck for bur retention. Output is mechanical rotation of the bur for dental procedures. Benefits include efficient removal of tooth structure and improved visibility via fiber optics. Substantially equivalent to existing Lares and Kavo handpieces.

Clinical Evidence

No clinical field trials conducted. Substantial equivalence supported by bench testing per ISO 14457:2012, biocompatibility studies, and review of predicate device post-market surveillance data (MDRs, MAUDE, and internal complaint data).

Technological Characteristics

Air-driven turbine; stainless steel exterior; stainless steel and polyphenylsulfone (PPSU) internal passages. ISO 9168 Type 2 or Kavo Multi-Flex compatible connections. Push-button chuck. Optional solid glass fiber optic. Operating pressure 32-40 PSI. Free-running speed 340-510 KRPM. Complies with ISO 14457:2012.

Indications for Use

Indicated for licensed dental professionals performing hard tooth structure reduction, cavity preparation, and restorative dentistry.

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.

Predicate Devices

• Kavo GENTLEforce 6000B (K073478)
• Lares Research 557 Turbo+ (K780038)
• Lares Research 757 Workhorse (K905541)

Submission Summary (Full Text)

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Image /page/0/Picture/1 description: The image shows the seal of the Department of Health & Human Services - USA. The seal is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the seal is a stylized image of a human face in profile, with three overlapping profiles to represent the department's focus on health, human services, and the well-being of the nation. The seal is black and white.

Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002

October28, 2014

Lares Research Mr. Jason Orgain Engineering Manager 295 Lockheed Avenue Chico, California 95973

Re: K141221

Trade/Device Name: Lares Research 557 and 757 ProStyle model product family of highspeed handpieces Regulation Number: 21 CFR 872.4200 Regulation Name: Dental Handpiece and Accessories Regulatory Class: I Product Code: EFB Dated: September 26, 2014 Received: October 6, 2014

Dear Mr. Orgain:

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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Page 2 - Mr. Orgain

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 (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 Small Manufacturers, International and Consumer Assistance at its tollfree number [phone] or [phone] or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/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 Small Manufacturers, International and Consumer Assistance at its toll-free number [phone] or [phone] or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely yours,

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

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#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration

#### Indications for Use

510(k) Number (if known) K141221

Device Name

Lares Research 557 and 757 ProStyle model product family of high-speed handpieces

Indications for Use (Describe)

The Lares Research 557 and 757 ProStyle model product family of high-speed handpieces is intended to be used by licensed dental professionals to reduce hard tooth structure, carry out cavity preparations and perform restorative 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)

PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.

#### FOR FDA USE ONLY

Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)

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# Submitter

Lares Research 295 Lockheed Ave Chico. Ca 95973

Contact person: Telephone: Date prepared:

Trade Names:

Common Name:

Classification Name:

Requlation Number:

Classification Code:

#### Device Name

Lares Research 557 and 757 ProStyle model product family of high-speed handpieces High-speed Dental Handpiece High-speed Dental Handpiece 21 CFR 872.4200

#### Predicate Devices

Predicate Device #1:

Predicate Device #2:

Predicate Device #3:

Kavo GENTLEforce 6000B. K073478

Lares Research 557 Turbo+, K780038

Lares Research 757 Workhorse,

## Device Description

The Lares Research 557 and 757 ProStyle model product family of high-speed handpieces are the next generation of the Lares high-speed handpiece product line. The Lares Research 557 and 757 ProStyle model product family of highspeed handpieces are substantially similar to the 557 Turbo+ and 757 Workhorse as they are light weight, air-driven high-speed turbine dental drills connected to standard ISO 9168 Type 2 and Type 3 dental unit hose connections. The Lares Research 557 and 757 ProStyle model product family of high-speed handpieces features include a solid glass fiber optic element and optional Kavo Multi-Flex compatible swivel quick connection.

K905541

## Indications for Use

The Lares Research 557 and 757 ProStyle model product family of high-speed handpieces is intended to be used by licensed dental professionals to reduce

## 807.92(a)(4)

807.92(a)(5)

# 807.92(a)(1)

807.92(a)(2)

227-226-V-A

807.92(a)(3)

EFB

Jason Orgain

May 7, 2014

530-345-1767 ext 2860

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hard tooth structure, carry out cavity preparations and perform restorative dentistry.

#### Device Technological Characteristics

#### 807.92(a)(6)

Lares Research 557 ProStyle and 757 ProStyle model product family of highspeed handpieces have ISO 9168 Type 2 connections identical to the 557 Turbo+ and 757 Workhorse, or optional Kavo Multi-Flex compatible connections equivalent to the Kavo GENTLEforce 6000B. The Lares Research 557 and 757 Pro-Style model product family of high-speed handpieces have a maximum input air and cooling fluid pressure of 40 PSI, similar to the Kavo GENTLEforce 6000B. The Lares Research 557 and 757 ProStyle model product family of high-speed handpieces also have push button chuck operation and have optional fiber optics for lighted operation equivalent to the 757 Workhorse. Cooling fluid and atomizing spray connections are integral to the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces similar to all the predicate devices. Materials used in the construction of the Lares Research 557 ProStyle and 757 ProStyle model product family of high-speed handpieces include a stainless steel exterior and stainless steel and polymer interior (see Summary Table of Technological Characteristics).

| Summary Table of Technological Characteristics | | | | | |
|------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------|--------------------------------------------------------------------------|--------------------------------------------------------------------------|--------------------------------------------------------------------------|
| Product Characteristic | Lares 557 ProStyle | Lares 757<br>ProStyle | Lares 557<br>Turbo+<br>(K780038) | Lares 757<br>Workhorse<br>(K905541) | Kavo 6000B<br>(K073478) |
| Indications for use | The Lares Research 557 and<br>757 ProStyle model product<br>family of high-speed<br>handpieces is intended to be<br>used by licensed dental<br>professionals to reduce hard<br>tooth structure, carry out cavity<br>preparations and perform<br>restorative dentistry. | Identical | Equivalent | Equivalent | Equivalent |
| Basic operation | The handpiece is connected to<br>a dental tubing which delivers<br>drive air, cooling air and water<br>to the cutting bur area. Optional<br>fiber optics deliver light to the<br>cutting area. | Identical | Identical | Identical | Identical |
| Handpiece/ hose<br>connection | ISO 9168 type 2 or Kavo Multi-<br>Flex compatible (optional) | ISO 9168 type 2<br>or Kavo Multi-<br>Flex compatible<br>(optional) | ISO 9168 type<br>2 | ISO 9168 type<br>2 | Kavo Multi-<br>Flex |
| Fiber optics | Solid glass rod (optional) | Solid glass rod<br>(optional) | N/A | Bundled glass<br>fiber (optional) | Solid glass<br>rod (optional) |
| Handpiece head<br>dimensions | Head diam. = 0.410" (10.4mm)<br>Head length =0.486" (12.3mm) | Head diam. =<br>0.510" (13.0mm)<br>Head length<br>=0.583" (14.8mm) | Head diam. =<br>0.400"<br>(10.2mm)<br>Head length<br>=0.486"<br>(14.8mm) | Head diam. =<br>0.510"<br>(13.0mm)<br>Head length<br>=0.583"<br>(14.8mm) | Head diam. =<br>0.493"<br>(12.5mm)<br>Head length<br>=0.516"<br>(13.1mm) |

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| Overall handpiece length | 4.61" (117.1mm) - Multi-Flex<br>compatible; 5.46" (138.7mm) -<br>ISO 9168 Type 2 connection | 4.75" (120.7mm)<br>- Multi-Flex<br>compatible; 5.59"<br>(142.0/mm) - ISO<br>9168 Type 2<br>connection | 5.50"<br>(139.7/mm) -<br>ISO 9168 Type<br>2 connection | 5.60"<br>(142.2/mm) -<br>ISO 9168 Type<br>2 connection | 4.67"<br>(118.6mm)<br>Multi-Flex<br>connection |
|------------------------------------------------------------|---------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------|--------------------------------------------------------|--------------------------------------------------------|-------------------------------------------------------|
| Type of chuck | Friction grip Push-button | Friction grip<br>Push-button | Friction grip<br>Wrench type | Friction grip<br>Push-button | Friction grip<br>Push-button |
| Materials used in patient-<br>contact surfaces (external) | Stainless steel | Stainless steel | Stainless steel | Stainless steel | Information<br>not available |
| Materials used in the water<br>and air passages (internal) | Stainless steel,<br>polyphenylsulfone (PPSU) | Stainless steel,<br>polyphenylsulfone<br>(PPSU) | Stainless steel | Stainless steel | Information<br>not available |
| Operating pressure | 32 - 40 PSI | 32 - 40 PSI | 32 - 40 PSI | 32 - 40 PSI | 30 - 51 PSI,<br>40 PSI<br>recommended |
| Free-running speed | 450-510 KRPM | 340-400 KRPM | 450-510 KRPM | 340-400 kRPM | 370 KRPM |
| Compliance Standards | Complies with ISO 14457 | Complies with<br>ISO 14457 | Complies with<br>ISO 7785-1 | Complies with<br>ISO 7785-1 | Complies with<br>ISO 7785-1,<br>ISO 7405,<br>ISO 9168 |

# Nonclinical Tests Discussion

Nonclinical tests included:

Performance tests in accordance to international standards ISO 14457: 2012 for air-driven high-speed dental handpieces have been conducted to determine conformance to the standards for the intended use. Biocompatibility and Sterilization studies have been completed using master device samples of the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces. The master device sample Lares Research 557 and 757 ProStyle model high-speed handpiece passed all the applicable tests of ISO 14457: 2012.

# Clinical Test Discussion

No clinical field trials have been conducted with the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces.

Data from predicate device post market surveillance. MDR's. MAUDE, and internal Lares Research product complaint data was reviewed to identify potential safety and effectiveness issues that would need to be addressed. No additional issues were identified and the Risk Assessment report for the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces is a record of this review.

# Conclusion

The Lares Research 557 and 757 Pro-Style model product family of high-speed handpieces has an equivalent intended use and identical operation as well as substantially similar technological specifications as the predicate devices (Lares Research and Kavo 6000B high-speed handpiece products). The feature

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807.92(b)(3)

807.92(b)(2)

807.92(b)(1)

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updates incorporated into the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces were made to change the material of the fiber optic elements of the handpiece. Data from biocompatibility evaluations. sterilization testing and field experience of predicate devices indicate the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces pose no additional risks.

Based on the device technological characteristics comparison, nonclinical tests discussion, clinical test discussion and specification comparison the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces is substantially equivalent to the 557 Turbo+, 757 Workhorse and Kavo 6000B handpieces.

#### Guidance document used:

www.fda.gov./.../ucm142651.htm - Content of a 510(k); 510(k) Summary section. This document was used to establish the content for this section.

#### Format for Traditional and Abbreviated 510(K)s

This guidance document provides a process to determine which type of 510(k) submission best suits this product, and the format of the premarket 510(k) document. Based on the information provided, Lares Research determined the Abbreviated 510(k) would be best suited. Specific recommended forms and section headers indicated in this guidance document were used to create the basic formatting for the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces 510(k) document. Any guidance document listed as a reference for further information in each section was also reviewed and included in this premarket 510(k) document as needed.

#### Bundling Multiple Devices or Multiple Indications in a Single Submission

This quidance document was used to determine if the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces could be bundled into a single premarket notification. Based on the discussion in Section B of this guidance document, it was decided that the Lares Research 557 and 757 ProStyle model product family of high-speed handpieces has equivalent indications for use and substantially equivalent performance and technological characteristics, which would allow all Lares Research 557 and 757 ProStvle model product family of high-speed handpieces to be bundled into one 510(k) premarket notification.

#### Dental Handpieces - Premarket Notification [510(k)] Submissions

This guidance document provided specific dental product references for formatting and for information to be included in each section of the 510(k) document. This document also provided a list of standards which are recognized by the FDA for this product code. Specific performance and construction information recommended in this guidance document was also included in the 510(k) premarket notification document.

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The New 510(k) Paradigm, Alternate Approaches to Demonstrating Substantial Equivalence in Premarket Notifications.

This guidance document was used to structure the data supporting substantial equivalence between existing legally marketed products and Lares Research 557 and 757 ProStyle model product family of high-speed handpieces.