DENTAL LITHIUM DISILICATE GLASS CERAMIC BLOCK (UP. PRESS SERIES AND UP. CAD SERIES)
Applicant
Liaoning Upcera Co., Ltd.
Product Code
EIH · Dental
Decision Date
Dec 18, 2014
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 872.6660
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Dental Lithium Disilicate Glass Ceramic Blocks (Up. Press Series and Up. CAD Series) are indicated for fabricating all-ceramic restorations such as veneers, inlay/ onlay, partial crowns, anterior crowns, posterior crowns, using the hot press technique or CAD/CAM system.
Device Story
Dental Lithium Disilicate Glass Ceramic Blocks (Up. Press Series and Up. CAD Series) are dental porcelain blanks used to fabricate all-ceramic restorations. The device is processed by dental laboratories using either hot press techniques or CAD/CAM systems to create veneers, inlays, onlays, and crowns. The material consists of SiO2, Li2O, P2O5, Al2O3, B2O3, and inorganic pigments. The device is intended for use by dental professionals to restore tooth structure, providing functional and aesthetic benefits to the patient. It is supplied as non-sterile blocks, discs, or rods.
Clinical Evidence
Bench testing only. Performance verified per ISO 6872:2008 (flexural strength). Biocompatibility verified per ISO 10993 series, including cytotoxicity (ISO 10993-5), oral mucosa irritation (ISO 10993-10), sensitization (ISO 10993-10), subacute/subchronic toxicity (ISO 10993-11), and genotoxicity (ISO 10993-3). Results met all acceptance criteria.
Technological Characteristics
Material: Lithium disilicate glass ceramic (SiO2, Li2O, P2O5, Al2O3, B2O3, inorganic pigments). Form factor: Blocks, discs, rods. Processing: Hot press or CAD/CAM. Standards: ISO 6872:2008 (performance), ISO 10993 (biocompatibility). Non-sterile.
Indications for Use
Indicated for patients requiring all-ceramic dental restorations, including veneers, inlays, onlays, partial crowns, anterior crowns, and posterior crowns.
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.
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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 consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized image of three human profiles facing to the right, stacked on top of each other.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
December 18,2014
Liaoning Upcera Co., Ltd. C/O Mr. Charles Shen Regulatory Correspondent Manton Business and Technology Services 853 Dorchester LN Unit-B New Milford, NJ 07646
Re: K141727
Trade/Device Name: Dental Lithium Disilicate Glass Ceramic Block (Up. Press Series and UP. CAD Series) Regulation Number: 21 CFR 872.6660 Regulation Name: Porcelain powder for clinical use Regulatory Class: II Product Code: EIH Dated: November 20, 2014 Received: November 25, 2015
Dear Mr. Shen:
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. Shen
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 (800) 638-2041 or (301) 796-7100 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 (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Susan Runno, DDS, MA
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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Section 4: Indication for Use
# Section 4: Indications for Use
510(k) Number (if known): N/A K141727
Device Name: Dental Lithium Disilicate Glass Ceramic Block (Up. Press Series and Up. CAD Series) Indications for Use:
Dental Lithium Disilicate Glass Ceramic Blocks (Up. Press Series and Up. CAD Series) are indicated for fabricating all-ceramic restorations such as veneers, inlay/ onlay, partial crowns, anterior crowns, posterior crowns, using the hot press technique or CAD/CAM system.
Prescription Use X (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (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)
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# Section 5: 510(k) Summary: K141727
### 5.1 Submitter & Foreign Manufacture Identification
Liaoning Upcera Co., Ltd No.122 Xianghuai Road, Economic Development Zone, Benxi, Liaoning, China Tel: (086) 24-45565006 Submitter's FDA Registration Number: 3010582952 www.upcera-dental.com
### 5.2 Contact Person
Charles Shen Manton Business and Technology Services 853 Dorchester LN, Unit-B New Milford, NJ 08534 Tel: 608-217-9358 Email: cyshen@aol.com
#### 5.3 Date of Summary: December 15, 2014
#### 5.4 Device Name:
| Proprietary Name: | Dental Lithium Disilicate Glass Ceramic Block (Up. Press<br>Series and Up. CAD Series) |
|------------------------|----------------------------------------------------------------------------------------|
| Common Name: | Dental Glass Ceramics |
| Classification Name: | Porcelain Powder for Clinical Use |
| Device Classification: | II |
| Regulation Number: | 21 CFR 872.6660 |
| Panel: General | Dental |
| Product Code: | EIH |
#### ર્સ્ડ Predicate Device Information:
K123952, "CEREC Blocs C In", manufactured by "Sirona Dental Systems GmbH" (1)
#### 5.6 Device description:
Dental Lithium Disilicate Glass Ceramic Block (Up. Press Series and Up. CAD Series) are derived from dental porcelain powder that has been processed into their final net shapes. These blanks are then being further fabricated (using hot press or CAD/CAM technologies) into all-ceramic restorations such as veneers, inlay/ onlay, partial crowns, anterior crowns, posterior crowns. The ceramics material is composed of SiO2, Li2O, P205, Al2O3, B2O3, and other oxides. It also contains inorganic pigments (Er2O3, V2O3,
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and MnO2) to provide different shades on the product surface. The performance of this lithium silicate dental blank conforms to ISO 6872. Dentistry: Ceramic Materials
# 5.7 Intended Use:
Dental Lithium Disilicate Glass Ceramic Blocks (Up. Press Series and Up. CAD Series) are indicated for fabricating all-ceramic restorations such as veneers, inlay/ onlay, partial crowns, anterior crowns, posterior crowns, using the hot press technique or CAD/CAM system.
# ર્સ્ક Summary of Device Testing:
Bench testing was performed per ISO 6872:2008 and internal procedures to ensure that the Dental Lithium Disilicate Glass Ceramic Block (Up. Press Series and Up. CAD Series) met its specifications. All tests were verified to meet acceptance criteria.
Biocompatibility testing was performed to verify the equivalent safety of the materials that are used.
# 5.9 Comparison with Predicate Device:
"Dental Lithium Disilicate Glass Ceramic Block (Up. Press Series and Up. CAD Series)" are compared with the following Predicate Devices in terms of intended use, design, material, specifications, and performance.
- (1) K123952, "CEREC Blocs C In", manufactured by "Sirona Dental Systems GmbH"
The following table shows similarities and differences of use, design, and material between our device and the predicate devices.
# Table 5.1: Comparison of Intended Use, Design, Material, and Processing
| Description | Subject Device | Predicate Device (K123952) |
|-----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indication for<br>Use | Dental Lithium Disilicate Glass Ceramic<br>Blocks (Up. Press Series and Up. CAD<br>Series) are indicated for fabricating all-<br>ceramic restorations such as veneers,<br>inlay/ onlay, partial crowns, anterior<br>crowns, posterior crowns, using the hot<br>press technique or CAD/CAM system. | CEREC blocs C In are indicated for<br>the fabrication of veneers and of<br>crowns in anterior teeth and in<br>premolars that have not been<br>endodontically treated, using the<br>Sirona CAD/CAM system. |
| Materials | $SiO_2$ , $Li_2O$ , $K_2O$ , $P_2O_5$ , $Al_2O_3$ , $B_2O_3$ , and<br>other oxides | $SiO_2$ , $K_2O$ , $Na_2O$ , $Al_2O_3$ , $B_2O_3$ , and<br>other oxides |
| Processing | Sintering at temperature 1450-1550 °C | Sintering at un-disclosed temperature |
| Processing at | Hot Press (Up. Press Series) | CAD/CAM |
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| Dental lab | CAD/CAM (Up. CAD Series) | |
|--------------------|--------------------------|-------------|
| Geometry | Blocks, disc, and rod | Blocks |
| Dimension | Various | Various |
| Single Use | Yes | Yes |
| Available<br>Color | Various | Various |
| Sterile | Non-sterile | Non-sterile |
Our device is very similar to the predicate device in terms of indications for use, design, material (same material vendor), and processing between our device and the predicate devices. There are three minor differences that are worth discussing:
- (1) Compared with predicate device. the subject device has a slight different phrasing of potential dental applications in the Indications for Use Statement. This difference in wording is minor, and all applications for the subject device is compliant to the recommended clinical indications in Table 1 of ISO 6872: 2008
- (2) The subject and predicate device have slight difference in composition. But they both have silicate and alkaline metal oxide as the major component. For example, the subject device has SiO2, Li2O, K2O, and the predicate device has SiO2, Na2O, K2O. Note that lithium and sodium belong to the same group of alkaline metals and display very similar physical and chemical properties.
- (3) The predicate device will be CAD/CAM processed at dental labs, and the subject device can be either CAD/CAM processed or hot pressed. It has long been proven in the industry that CAD/CAM processing and hot pressing are similar in terms of product final physical and chemical properties. This is also demonstrated in our performance testing that products from the Up. Press and Up. CAD series are almost equivalent in performance (see Table 12.2 below).
The following table shows similarities and differences of the key performance between our device and the predicate devices. Tests were conducted following applicable procedures outlined in the FDA recognized consensus standard of ISO 6872, and results met all relevant requirements in the test standards, and are comparable to the predicate device in performance.
The only minor difference is that subject device has higher flexural strength and potentially wider dental applications compared with predicate device.
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| Description | Subject Device: Up. Press<br>Series and Up. CAD Series | Predicate Device (K123952) |
|-------------------------------------------|--------------------------------------------------------|-------------------------------------------|
| Radioactivity (Bq•g-1) | | |
| Density (g/cm3) | | |
| Flexural Strength<br>(MPa) | Meet the requirements of<br>ISO 6872:2008 | Meet the requirements of<br>ISO 6872:2008 |
| Coefficient of Thermal<br>Expansion (K-1) | | |
| Glass Transition<br>Temperature (°C) | | |
# Table 5.2: Comparison of Performance Testing
The following table shows similarities and differences of the biocompatibility between our device and the predicate devices. Tests were conducted following the recommended procedures outlined in the FDA recognized consensus standard of ISO 10993, and results met all relevant requirements in the test standards, and are comparable to the predicate device.
Table 5.3: Comparison of Biocompatibility Testing
| Description | Our Device | Predicate Device (K123952) |
|--------------------------------------------------------------|----------------------------------------------------------------------------|-----------------------------------|
| Cytotoxicity<br>(ISO 10993-5:2009) | No cytotoxicity effect | |
| Irritation Oral Mucosa<br>Irritation<br>(ISO 10993-10: 2010) | Not a primary oral mucosa<br>irritant under the conditions of<br>the study | |
| Sensitization (ISO<br>10993-10: 2010) | Not a sensitizer under the<br>conditions of the study | Biocompatible per ISO<br>10993-1. |
| Subacute and<br>Subchronic Toxicity<br>(ISO 10993-11: 2006) | No subacute and subchronic<br>toxic effects observed | |
| Genotoxicity (ISO<br>10993-3: 2003) | No genotoxic effects observed | |
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#### 5.10 Summary
It has been shown in this 510(k) submission that Dental Lithium Disilicate Glass Ceramic Block (Up. Press Series and Up. CAD Series) and its predicate devices have very similar indications for use, similar composition and biocompatibility, similar manufacturing process, and similar performance.
The difference between the subject device and its predicate device do not raise any question regarding its safety and effectiveness.
Dental Lithium Disilicate Glass Ceramic Block (Up. Press Series and Up. CAD Series), as designed and manufactured, are substantially equivalent as its predicate device.
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