MDK HANDPIECES

K141886 · Modern Korea Co., Ltd. · EFB · May 13, 2015 · Dental

Device Facts

• Record ID: K141886
• Device Name: MDK HANDPIECES
• Applicant: Modern Korea Co., Ltd.
• Product Code: EFB · Dental
• Decision Date: May 13, 2015
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 872.4200
• Device Class: Class 1
• Attributes: Therapeutic

Intended Use

MDK high-speed handpieces are used for the removal of carious material, reducing of hard tooth structure, cavity and crown preparations, removal of fillings, processing and finishing tooth preparations, and for polishing teeth. MDK low-speed handpieces used for teeth cutting, cavity and crown preparations and polishing teeth. All the devices are designed for use by a trained professional in the field of general dentistry.

Device Story

MDK Handpieces are air-powered, hand-held dental instruments; used by trained dental professionals in general dentistry. Devices connect to dental treatment units via tubes supplying compressed air, water, and light (optional fiber optics). Compressed air drives an internal turbine; high-speed models reach 400,000 rpm; low-speed models reach 100,000 rpm. Various chuck systems (push button, latch, screw, snap-on, tip-lock) secure dental burs. Output is mechanical rotation for cutting, preparing, and polishing tooth structure. Healthcare providers use these to perform restorative procedures; benefits include efficient removal of tooth material and debris. Devices are reusable; require cleaning and steam autoclave sterilization between patients.

Clinical Evidence

Bench testing only. Tests included bur release force, compatibility with third-party couplings, sterilization validation (ISO 17665, 11138, 11135, 11607, 17664, USP 30-NF 25), performance testing (ISO 14457), and biocompatibility (ISO 10993-5).

Technological Characteristics

Materials: titanium and stainless steel. Principle: air-powered turbine. Energy: compressed air. Connectivity: pneumatic connection to dental unit. Sterilization: steam autoclave. Standards: ISO 14457 (performance), ISO 10993-5 (biocompatibility), ISO 17665/11138/11135/11607/17664 (sterilization).

Indications for Use

Indicated for trained dental professionals for removal of carious material, reduction of hard tooth structure, cavity/crown preparation, removal of fillings, processing/finishing tooth preparations, restorations, and polishing teeth.

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

• MASTERtorque LUX 8900 L (K130560)
• Dental Air-Powered Handpiece, models TIGER 300T, TIGER 300K, TIGER 300W, TIGER 300B (K062812)
• Vigor Series Low speed dental handpieces (K112305)

Reference Devices

• Pana-Spray (K052700)
• KaVo QUATTROcare (K071288)

Submission Summary (Full Text)

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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle with three heads in profile, facing right. The eagle is enclosed in a circle with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" around the perimeter.

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

May 13, 2015

Modern Korea Co. Ltd. c/o Ms. Priscilla Chung LK Consulting Group USA, Inc. 2651 East Chapman Avenue, Suite 110 Fullerton California, 92831

Re: K141886

Trade/Device Name: MDK Handpieces Regulation Number: 21 CFR 872.4200 Regulation Name: Dental Handpiece and Accessories Regulatory Class: I Product Code: EFB Dated: April 13, 2015 Received: April 14, 2015

#### Dear Ms. Chung:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

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Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (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,

Tina
Kiang -S

for Erin I. Keith, M.S. Director Division of Anesthesiology, General Hospital, Respiratory, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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# Indications for Use

510(k) Number (if known) K141886

Device Name

MDK Handpieces

Indications for Use (Describe)

MDK high-speed handpieces are used for the removal of carious material, reducing of hard tooth structure, cavity and crown preparations, removal of fillings, processing and finishing tooth preparations, and for polishing teeth. MDK low-speed handpieces used for teeth cutting, cavity and crown preparations and polishing teeth. All the devices are 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) | <div> <span> <b> × </b> </span> </div> |
|----------------------------------------------|-------------------------------------------------|
| Over-The-Counter Use (21 CFR 801 Subpart C) | |

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# 510(k) Summary (k141886)

This summary of 510(K) is being submitted in accordance with requirements of 21 CFR Part 807.92.

Date: 05/11/2015

#### 1. 510k Applicant / Submitter

Modern Korea Co., Ltd. #604, Ilsantechnotown, 138, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 410-722, Republic of Korea Tel: [phone] Fax: [phone]

#### 2. Submission Correspondent

Priscilla Chung LK Consulting Group USA, Inc. 2651 E Chapman Ave. Ste 110, Fullerton, CA 92831 Phone: [phone] Fax: [phone] Email: [e-mail]

### 3. Device

- · Trade Name: MDK Handpieces
- Classification Name: Dental Handpiece and Accessories .
- · Classification Regulation: Class I, 21 CFR 872.4200
- · Product Code: EFB

### 4. Predicate Device:

- · Primary Predicate Device for MDK High-Speed Handpieces: MASTERtorque LUX 8900 L (K130560) by Kaltenbach & Voigh GMbH
- · Reference Predicate Devices for MDK High-Speed Handpieces: Dental Air-Powered Handpiece, models TIGER 300TTIGER 300K, TIGER 300W, TIGER 300B (K062812) by THUNDER TIGER CORP.
- · Primary Predicate Device for MDK Low-Speed Handpieces: Vigor Series Low speed dental handpieces (K112305) by THUNDER TIGER CORP.

### 5. Description:

The MDK handpieces are dental hand pieces for use by a trained professional in the field of general

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dentistry. They are air-powered handpieces that are reusable and have a fiber optic light system (some models do not have this feature.). The MDK handpieces are supplied with water, air and light through the tube and dental treatment units.

The MDK handpieces offer high-speed handpieces and low-speed handpieces according to rpm. The high-speed handpieces with fiber optic have 11 models and those without fiber optic have 10 models. The low-speed handpieces are divided into 3 types: contra angle handpieces provided with and without a fiber optic light system, and straight handpieces. The contra angle handpieces with fiber optic have 4 models and those without fiber optic have 10 models. The straight handpieces have 2 models.

The MDK handpieces are hand-held, channeled instruments that are powered by compressed air delivered through a hose to an air channel in the handpieces. This impels the turbine in the head of the handpiece to revolve. The bur of the high speed handpieces can rotate up to 400,000 rpm and the bur of the low speed handpieces can rotate up to 100,000 rpm. Dental burs (not part of this 510k) can be inserted into the chuck system of each handpiece (push button, latch, screw, snap-on or tip-lock chuck options).

The low-speed handpieces are used with the air motors (20.000 rpm) made by our company and offer various gear ratio (1:1(constant), 20:1(speed reduction), 30:1(speed reduction), and 1:5(speed increase)). The high-speed handpieces are used with the following compatible couplings made by the third party manufacturers. *

- 1) Kaltenbach & Voigt GmbH & Co. : KaVo MULTIflex LUX Series
- 2) Sirona Dental Systems GmbH : Sirona R/F Series
- 3) W&H Dentalwerk Bumoos GmbH : W&H Series
- 4) Bien-Air Dental S.A. : BienAir Unifix L Series
- 5) NSK : NSK Machlite/Phatelus Series

The headpieces are made of titanium and stainless steel, and must be cleaned and sterilized between use by the user.

### 6. Indications for Use:

MDK high-speed handpieces are used for the removal of carious material, reducing of hard tooth structure, cavity and crown preparations, removal of fillings, processing and finishing tooth preparations, restorations, and for polishing teeth. MDK low-speed handpieces used for teeth cutting, cavity and crown preparation, restorations and polishing teeth.

All the devices are designed for use by a trained professional in the field of general dentistry.

## 7. Comparison to the Cleared Device

## 7.1. High-speed handpieces

The subject device is intended for the same use as MASTERtorque LUX 8900 L by Kaltenbach & Voigh GmbH and the Dental Air-Powered Handpiece, models TIGER 300T. TIGER 300K, TIGER300W, TIGER 300B, and TIGER 300N by THUNDER TIGER CORP. The subject device is substantially equivalent to the predicate devices in design, principle of operation, raw materials, performance specifications and sterilization method. The internal structure or design, and the materials of the subject device might be different from the predicate devices; however, the test results of the biocompatibility test, the sterilization validation, and the performance tests support that the subject device is

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substantially equivalent to the predicate devices.

| | Subject Device | Primary Predicate<br>Device | Reference Predicate<br>Device |
|---------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Name | MDK handpieces<br>- High-speed handpieces | MASTERtorque<br>LUX 8900 L | Dental Air-Powered<br>Handpiece, models<br>TIGER 300T, TIGER<br>300K, TIGER 300W,<br>TIGER 300B, TIGER<br>300N |
| 210K | K141886 | K130560 | K062812 |
| Manufacturer | MODERN KOREA Co.,<br>Ltd. | Kaltenbach & Voigh<br>GMPH | THUNDER TIGER<br>CORP. |
| Indications for<br>use | MDK high-speed<br>handpieces are used for<br>the removal of carious<br>material, reducing of<br>hard tooth structure,<br>cavity and crown<br>preparations, removal of<br>fillings, processing and<br>finishing tooth<br>preparations,<br>restorations, and for<br>polishing teeth. All the<br>devices are designed for<br>use by a trained<br>professional in the field<br>of general dentistry. | The MASTERtorque<br>LUX 8900 L is intended<br>for the removal of<br>carious material,<br>reducing hard tooth<br>structure, cavity<br>preparation, finishing<br>tooth preparations,<br>restorations, and for<br>polishing teeth. They are<br>designed for use by a<br>trained professional in<br>the field of general<br>dentistry. | THUNDER TIGER<br>Dental Air-Powered<br>Handpiece, models<br>TIGER 300TTIGER<br>300K, TIGER 300W<br>TIGER 300B. TIGER<br>300N are intended for<br>removing carious<br>material, reducing hard<br>tooth structure, cavity<br>preparation, finishing<br>tooth preparations and<br>restorations and<br>polishing teeth. |
| Principle<br>of operation | Through the tubes<br>connected to a dental<br>unit, the air-powered<br>handpiece receives the<br>air for rotation, the<br>cooling water and light<br>for illumination of the<br>operation area. | Through the tubes<br>connected to a dental<br>unit, the air-powered<br>handpiece receives the<br>air for rotation, the<br>cooling water and light<br>for illumination of the<br>operation area. | Through the tubes<br>connected to a dental<br>unit, the air-powered<br>handpiece receives the<br>air for rotation, the<br>cooling water and light<br>for illumination of the<br>operation area. |
| Air/water ports | Up to four | Up to four | Information not<br>available |
| Fiber optics | With or without built-in<br>light system | With built-in light<br>system | With or without built-in<br>light system |
| Type of chuck<br>Chemical | Push button | Push button | Identical |
| composition of<br>the patient-<br>contacting<br>portions of the<br>device | Stainless steel and<br>titanium | Stainless steel | Titanium |
| Chemical<br>composition of<br>the water/air | Stainless steel and<br>titanium | German silver and<br>stainless steel | Information not<br>available |
| lines | | | |
| Bur retention force | 30N | Up to 24N | 35N |
| Operating pressure | 36psi to 43psi | 41 psi recommended | Information not available |
| Rotation Speed | 320,000 ~ 400,000rpm | 340,000 ~ 400,000rpm | 300,000 ~ 350,000 rpm |
| Accessories | Wrench, Connector<br>(for inserting lubricant) | Wrench, Connector<br>(for inserting lubricant) | Wrench, Connector<br>(for inserting lubricant) |
| Lubricant | Pana-Spray made by<br>NSK(K052700) | KaVo QUATTROcare<br>(K071288) | Liquid oil type spray<br>can |
| Sterilization | Steam autoclave method | Steam autoclave method | Steam autoclave method |

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### 7.2. Low-speed handpieces

The subject device is intended for the same use as Vigor Series Low speed dental handpieces by THUNDER TIGER CORP. The subject device is substantially equivalent to the predicate device in design, principle of operation, raw materials, performance specifications and sterilization method.

The subject device offers more chuck system models than the predicate device, but the test results of the bur release force test supported that this difference would not raise a question of the risk related to chuck.

| | Subject Device | Primary Predicate Device |
|-----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Name | MDK handpieces - Low-speed<br>handpieces | Vigor Series Low speed dental<br>handpieces |
| 510K | K141886 | K112305 |
| Manufacturer | MODERN KOREA Co., Ltd. | THUNDER TIGER CORP. |
| Indications for use | MDK low-speed handpieces used<br>for teeth cutting, cavity and crown<br>preparation, restorations and<br>polishing teeth.<br>All the devices are designed for<br>use by a trained professional in the<br>field of general dentistry. | The Vigor Series Low speed dental<br>handpieces & Accessories are<br>powered by either low speed air<br>motor or electric micro-motor for<br>teeth cutting, cavity and crown<br>preparation, restorations and<br>polishing teeth. The Vigor A Low<br>Speed Air Motor is used in<br>conjunction with accessories such as<br>contra-angle, such as The Vigor C<br>Low Speed Contra-Angle<br>handpieces, and straight handpiece,<br>such as The Vigor S Low Speed<br>Straight handpieces. The motor<br>contains chip air and water that help<br>with removing debris from teeth<br>cutting. The Low Speed Contra<br>Angle Dental Handpiece that is<br>intended for removing carious<br>material, cavity and crown<br>preparations, finishing tooth |
| Principle<br>of operation | Through the tubes connected to a<br>dental unit, the air-powered<br>handpiece receives the air for<br>rotation, the cooling water and<br>light for illumination of the<br>operation area. | Through the tubes connected to a<br>dental unit, the air-powered<br>handpiece receives the air for<br>rotation, the cooling water and light<br>for illumination of the operation<br>area.<br>preparations, reducing hard tooth<br>structures, restorations and polishing<br>teeth. The Straight Handpiece<br>contains chip air and water that help<br>with removing debris from teeth<br>cutting. |
| Air/water ports | Up to 4 holes | Up to 4 holes |
| Fiber optics | With or without built-in light<br>system | With or without built-in light system |
| Type of chuck | push button, latch, screw, snap-on<br>or tip-lock chuck options | Push button & latch type |
| Chemical<br>composition of the<br>patient-contacting<br>portions of the<br>device | Stainless steel and titanium | Stainless steel |
| Chemical<br>composition of the<br>water/air lines | Stainless steel | Stainless steel |
| Bur retention force | 30N | Information not available |
| Operating pressure | 36psi to 43psi | Information not available |
| Speed (Motor) | Up to 20,000 rpm | Up to 25,000 rpm |
| Accessories | Head opener for<br>the latch type, Connector<br>for inserting lubricant, External<br>Spray Tubing with nozzle | Head opener for<br>the latch type, Connector<br>for inserting lubricant, External<br>Spray Tubing with nozzle |
| Lubricant | Pana-Spray made by<br>NSK(K052700) | Information not available |
| Sterilization | Steam autoclave method | Steam autoclave method |

510(k) summary , 4 / 6 page

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### 8. Performance Data

The following bench tests have been performed on the subject device and passed the pre-set criteria.

- Bur release force test ●
- Reverse analysis report for compatibility with the third party couplings .
- . Sterilization validation test in accordance with ISO 17665, ISO 11138, ISO 11135, ISO 11607, ISO 17664, and USP 30-NF 25
- Performance test in accordance with ISO 14457 ●
- Biocompatibility test in accordance with ISO 10993-5 ●

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- Compatibility test for the third party couplings
The subject device also conformed to the FDA guidance document for Dental Handpieces.

# 9. Conclusion

Based on the information provided in this 510k submission, we have concluded that our devices are substantially equivalent to the predicate device.