AIDITE ZIRCONIA DENTAL CERAMICS

K111291 · Qinhuangdao Aidite High-Technical Ceramics Co, Ltd. · EIH · Jul 20, 2011 · Dental

Device Facts

• Record ID: K111291
• Device Name: AIDITE ZIRCONIA DENTAL CERAMICS
• Applicant: Qinhuangdao Aidite High-Technical Ceramics Co, Ltd.
• Product Code: EIH · Dental
• Decision Date: Jul 20, 2011
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 872.6660
• Device Class: Class 2

Intended Use

Aidite Zirconia Dental Ceramics are indicated for the production of artificial teeth in fixed or removable dentures, or for jacket crowns, facings, and veneers.

Device Story

Aidite Zirconia Dental Ceramics are zirconia-based ceramic blocks/discs used for fabricating dental prosthetics. Material is processed via uni-axial and iso-static pressing to achieve uniform density. Available in seven product families (AC, AF, AG, AK-KAVA, AS-XND, AW-WLD, AZ-KFS) with various shapes and sizes; some blocks are pre-mounted on mandrels. Dental professionals machine these blocks into final prosthetic shapes (crowns, veneers, dentures) using modern machining methods. The device serves as a raw material substrate for dental restorations; it does not perform automated analysis or computation. Benefits include high fracture toughness and mechanical strength suitable for dental applications.

Clinical Evidence

No clinical data. Bench testing only. Physical and chemical properties tested per ISO 6872 and BS EN 1641; biocompatibility tested per ISO 10993-1.

Technological Characteristics

Zirconia-based ceramic (ZrO2 < 96%, Y2O3 > 4%, HfO2 > 1%, Al2O3 < 1%, SiO2 < 0.02%). Tetragonal crystal morphology. Pre-sintered density 3.10 g/cm³, post-sintered 6.05 g/cm³. Fracture toughness 1200 MPa (post-sintering). Elastic modulus 210 GPa. Sintering temperature 1480°C. Available in various blocks, discs, and spheres.

Indications for Use

Indicated for the production of artificial teeth in fixed or removable dentures, or for jacket crowns, facings, and veneers.

Regulatory Classification

Identification

Porcelain powder for clinical use is a device consisting of a mixture of kaolin, felspar, quartz, or other substances intended for use in the production of artificial teeth in fixed or removable dentures, of jacket crowns, facings, and veneers. The device is used in prosthetic dentistry by heating the powder mixture to a high temperature in an oven to produce a hard prosthesis with a glass-like finish.

Predicate Devices

• Upcera Zirconia Blanks (K093560)

Submission Summary (Full Text)

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Image /page/0/Picture/0 description: The image shows the logo for Emergo Group. The logo consists of the word "EMERGO" followed by a stylized letter "E" inside of a circle. The word "GROUP" is to the right of the circle. The text is in a sans-serif font.

### Zirconia Dental Ceramics

# KII1291

JUL 200 2011

#### SECTION 5 - 510(k) SUMMARY

Submission Correspondent

Company Name: Company Address:

Company Contact:

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| Website: | |

Submission Sponsor

Company Name: Company Address:

Country: Phone: Fax: Website:

Device Classification

Device Sponsor:

Device Trade Name:

Product Classification Name:

Product Code:

Regulation Name:

Regulation Number:

Classification Panel:

Emergo Group, Inc. 611 West 5th Street Third Floor Austin, TX 78701 Stuart R. Goldman Senior Consultant 512.600.7616 USA 512.327.9997 512.327.9998 April 22, 2011 www.emergogroup.com/

Qinhuangdao Aidite High-Technical Ceramics Co. 12 North of West Ring Road - Economic and Technological Development Zone Qinhuangdao City China 0086-335-8587898 0086-335-8587198 www.zro2blocks.com/

Qinhuangdao Aidite High-Technical Ceramics Co.

Aidite Zirconia Dental Ceramics

Powder, Porcelain

ElH

Porcelain powder for clinical use

872.6660

Dental Devices

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## EMERGO GROUP

Image /page/1/Picture/1 description: The image shows a world map in the background with the Aidite logo in the foreground. The Aidite logo is a black square with a white "A" in the center. The word "Aidite" is written in black letters below the square. To the right of the logo, the word "Zirconia" is written in black letters. The map appears to be a simplified representation of the continents.

Zirconia Dental Ceramics

Intended Use

Aidite Zirconia Dental Ceramics are indicated for the production of artificial teeth in fixed or removable dentures, or for jacket crowns, facings, and veneers.

### Predicate Device

Upcera Zirconia Blanks (K093560)

### Device Description

Aidite Zirconia Dental Ceramics are derived from zirconia powder that has been processed via uni-aixial die pressing, followed by iso-static pressing, to achieve various shapes of uniform density and distribution. The ceramic blocks can be fabricated into various prosthetic dental devices. Physical and mechanical properties for Aidite Zirconia Dental Ceramics are shown in Table 5-1 and are similar in nature to the predicate device.

| Table 5-1<br>Physical & Mechanical Properties<br>Aidite Zirconia Dental Ceramics | |
|----------------------------------------------------------------------------------|------------|
| ZrO₂ | < 96 % wt |
| Y₂O₃ | > 4% |
| HfO₂ | > 1% |
| Al₂O₃ | < 1% |
| SiO₂ | < 0.02% |
| Crystal Morphology | Tetragonal |
| Color | White |
| Density (pre sintering) | 3.10 g/cm³ |
| Density (post sintering) | 6.05 g/cm³ |
| Fracture Toughness (pre sintering) | 55 Mpa |
| Fracture Toughness (post sintering) | 1200 Mpa |
| Elastic modulus (post sintering) | 210 Gpa |
| Sintering temperature | 1480°C |
| Shrinkage (pre sintering) | 20.00% |
| Shrinkage (post sintering) | 22.00% |
| Porosity | 0% |

Aidite Zirconia Dental Ceramics are offered in seven (7) different product families of shapes and a multitude of different sizes as shown below in Figure 1 and Table 5-2 and are capable of being machined into complex dental shapes using modern machining methods, and are similar to the sizes and shapes of the predicate device. The one exception is the AS-XND System of

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## EMERGO GGROUP

Image /page/2/Picture/1 description: The image shows a logo with the text "Zirconia Dental Ceramics". To the left of the text is a logo that includes a stylized letter "A" and the word "Aidite" below it. Above the logo is a faint outline of a world map. The logo and text appear to be for a dental ceramics company.

blocks is pre-mounted on mandrels. Any difference in the net shapes and dimensions between Aidite Zirconia Dental Ceramics and those offered by the manufacturer of the predicate devices are incidental to the performance of the final dental prosthetic devices that will be fabricated from them.

Figure 1 Aidite Zirconia Dental Ceramics

Image /page/2/Picture/4 description: The image shows a collection of various shapes and sizes of objects arranged in a circular pattern. There are circular, rectangular, and other irregularly shaped objects. The objects appear to be made of a light-colored material, possibly ceramic or plastic. The background is a dark, textured surface, which contrasts with the lighter objects.

| Table 5-2<br>Aidite Zirconia Dental Ceramics Product Family | |
|-------------------------------------------------------------|-------------------------------------------------------------|
| Family | Shapes & Sizes Available |
| AC System | Blocks: 20 x 26.5 x 25 to 25 x 72 x 40 (mm) |
| AF System | Blocks: 29 x 58 x 16 to 40 x 85 x 22 (mm) |
| | Discs: 95 x 10 to 100 x 25 (mm) |
| AG System | Blocks: 20 x 40 x 16 to 20 x 65 x 30 (mm) |
| | Discs: 98 x 12 to 98 x 20 (mm) |
| | Spheres: 90 x 12 x 71 to 90 x 25 x 71 (mm) |
| AK-KAVA System | Blocks: 20 x 42 x 16 to 16 x 60 x 20 (mm) |
| | Rods: 16 x 16 to 20 x 20 (mm) |
| AS-XND System | Blocks: 14 x 20 x 15 to 20 x 65 x 25 (mm)<br>(with mandrel) |
| AW-WLD System | Discs: 98 x 10 to 98 x 25 (mm) |
| AZ-KFS System | Blocks: 25 x 43 x 16 to 36 x 75 x 16 (mm) |
| | Rods: 23 x 16 (mm) |
| | Spheres: 87 x 16 x 56 to 93 x 16 x 75 (mm) |

Product Performance Testing

Aidite Zirconia Dental Ceramics have been tested for their physical and chemical properties in

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### EMERGO GROUP

Image /page/3/Picture/1 description: The image shows a world map in the background with the logo of "Aidite" in the foreground. The logo consists of a stylized letter "A" with a curved line above it. The word "Aidite" is written in bold letters below the symbol. To the right of the logo, the word "Zirconi" is partially visible.

### Zirconia Dental Ceramics

accordance with ISO 6872 and BS EN 1641, as well as biocompatibility in accordance with ISO 10993-1.

### Clinical Testing

Clinical testing was not performed for Aidite Zirconia Dental Ceramics as part of the Pre-market Notification requirements for this submission, as dental ceramics that fall under FDA product code EIH have a long history of safe and effective use in the US. The raw materials used in Aidite Zirconia Dental Ceramics are identical to the raw material used in the predicate device and are sourced from the same raw material supplier in Japan, and do not raise any questions regarding their safety and effectiveness as compared to the predicate device.

#### Substantial Equivalence

By definition, a device is substantially equivalent to a predicate device when the device has the same intended use and the same technological characteristics as the previously cleared predicate device, or has the same intended use and different technological characteristics, and it can be demonstrated that the new device is substantially equivalent to the predicate device, and that the new device does not raise different questions regarding its safety and effectiveness as compared to the predicate device.

It has been shown in this 510(k) submission that the differences between Aidite Zirconia Dental Ceramics and the predicate device do not raise any questions regarding its safety and effectiveness. Aidite Zirconia Dental Ceramics, as designed and manufactured, therefore are determined to be substantially equivalent to Upcera Zirconia Blanks previously cleared under K093560.

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

Qinhuagdao Aidite High-Technical Ceramics Company, Limited C/O Mr. Stuart R. Goldman Emergo Group, Incorporated 611 5th Street, Third Floor Austin, Texas 78701

Re: K111291

Trade/Device Name: Aidite Zirconia Dental Ceramics Regulation Number: 21 CFR 872.6660 Regulation Name: Porcelain Powder for Clinical Use Regulatory Class: II Product Code: EIH and ELL Dated: April 22, 2011 Received: May 6, 2011

JUL 20 2011

Dear Mr. Goldman:

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. Goldman

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 go to

http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. 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,

Anthony D. Watson, B.S., M.S., M.B.A.

Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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| EMER | |
|-------|--------------------------|
| idite | Zirconia Dental Ceramics |

《》 29

### GO GROUP

SECTION 4 - INDICATIONS FOR USE

510(k) Number (if known):

Aidite Zirconia Dental Ceramics are indicated for the production of artificial teeth in fixed or removable dentures, or for jacket crowns, facings, and veneers.

Prescription Use X

and/or

Over-The-Counter Use _________________________________________________________________________________________________________________________________________________________

(Part 21 CFR 801 Subpart D)

(21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE)

Sura Ruase

Division Sign-Off) Division of Anesthesiology, General Hospltal nfection Control, Dental Devices

:10(k) Number: K111221