(175 days)
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.
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, 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
Here's an analysis of the provided text, focusing on the acceptance criteria and the study used to prove the device meets these criteria:
This document is a 510(k) Premarket Notification from the FDA regarding a dental product, not an AI/ML device. Therefore, many of the requested categories related to AI performance, such as test sets, ground truth establishment, MRMC studies, and training sets, are not applicable.
However, I can extract the relevant information regarding the device's acceptance criteria and the studies that demonstrate compliance.
Device: Dental Lithium Disilicate Glass Ceramic Block (Up. Press Series and UP. CAD Series)
Acceptance Criteria and Reported Device Performance
| Description | Acceptance Criteria | Reported Device Performance |
|---|---|---|
| Flexibility Strength (MPa) | Meet the requirements of ISO 6872:2008 | Meet the requirements of ISO 6872:2008 (Subject device has higher flexural strength compared to predicate) |
| Radioactivity (Bq•g-1) | (Implicitly, within acceptable limits of ISO 6872:2008) | (Not explicitly stated in table, but implied to meet standards) |
| Density (g/cm3) | (Implicitly, within acceptable limits of ISO 6872:2008) | (Not explicitly stated in table, but implied to meet standards) |
| Coefficient of Thermal Expansion (K-1) | (Implicitly, within acceptable limits of ISO 6872:2008) | (Not explicitly stated in table, but implied to meet standards) |
| Glass Transition Temperature (°C) | (Implicitly, within acceptable limits of ISO 6872:2008) | (Not explicitly stated in table, but implied to meet standards) |
| Cytotoxicity | No cytotoxicity effect (per ISO 10993-5:2009) | No cytotoxicity effect |
| Irritation Oral Mucosa Irritation | Not a primary oral mucosa irritant (per ISO 10993-10: 2010) | Not a primary oral mucosa irritant under the conditions of the study |
| Sensitization | Not a sensitizer (per ISO 10993-10: 2010) | Not a sensitizer under the conditions of the study |
| Subacute and Subchronic Toxicity | No subacute and subchronic toxic effects (per ISO 10993-11: 2006) | No subacute and subchronic toxic effects observed |
| Genotoxicity | No genotoxic effects (per ISO 10993-3: 2003) | No genotoxic effects observed |
Studies Demonstrating Compliance:
-
Bench Testing:
- Standard: ISO 6872:2008 (Dentistry: Ceramic Materials).
- Methodology: Performed according to the standard and internal procedures.
- Results: "All tests were verified to meet acceptance criteria."
- Goal: To ensure the Dental Lithium Disilicate Glass Ceramic Block met its specifications, particularly for mechanical properties like flexural strength. The subject device showed "higher flexural strength and potentially wider dental applications compared with predicate device."
-
Biocompatibility Testing:
- Standard: ISO 10993 series (FDA recognized consensus standard).
- Specific Tests and Standards:
- Cytotoxicity: ISO 10993-5:2009
- Irritation Oral Mucosa Irritation: ISO 10993-10: 2010
- Sensitization: ISO 10993-10: 2010
- Subacute and Subchronic Toxicity: ISO 10993-11: 2006
- Genotoxicity: ISO 10993-3: 2003
- Results: "Results met all relevant requirements in the test standards, and are comparable to the predicate device." This means the device demonstrated no cytotoxic, irritant, sensitizing, subacute/subchronic toxic, or genotoxic effects.
- Goal: To verify the equivalent safety of the materials used in the device.
Information not applicable to this device (as it's not an AI/ML device):
- Sample size used for the test set and the data provenance: Not applicable. Performance is based on material property testing, not a dataset of cases.
- Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable. Ground truth is based on standard material science measurements and biological assays, not expert interpretation of cases.
- Adjudication method (e.g. 2+1, 3+1, none) for the test set: Not applicable.
- If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance: Not applicable.
- If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable.
- The type of ground truth used (expert consensus, pathology, outcomes data, etc.): Ground truth for this device involves established physical and chemical properties measured according to international standards (ISO). For biocompatibility, it's based on biological assay results aligning with ISO 10993 pass/fail criteria.
- The sample size for the training set: Not applicable.
- How the ground truth for the training set was established: Not applicable.
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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. PressSeries 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 forUse | Dental Lithium Disilicate Glass CeramicBlocks (Up. Press Series and Up. CADSeries) are indicated for fabricating all-ceramic restorations such as veneers,inlay/ onlay, partial crowns, anteriorcrowns, posterior crowns, using the hotpress technique or CAD/CAM system. | CEREC blocs C In are indicated forthe fabrication of veneers and ofcrowns in anterior teeth and inpremolars that have not beenendodontically treated, using theSirona CAD/CAM system. |
| Materials | $SiO_2$ , $Li_2O$ , $K_2O$ , $P_2O_5$ , $Al_2O_3$ , $B_2O_3$ , andother oxides | $SiO_2$ , $K_2O$ , $Na_2O$ , $Al_2O_3$ , $B_2O_3$ , andother 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 |
| AvailableColor | 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. PressSeries and Up. CAD Series | Predicate Device (K123952) |
|---|---|---|
| Radioactivity (Bq•g-1) | ||
| Density (g/cm3) | ||
| Flexural Strength(MPa) | Meet the requirements ofISO 6872:2008 | Meet the requirements ofISO 6872:2008 |
| Coefficient of ThermalExpansion (K-1) | ||
| Glass TransitionTemperature (°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(ISO 10993-5:2009) | No cytotoxicity effect | |
| Irritation Oral MucosaIrritation(ISO 10993-10: 2010) | Not a primary oral mucosairritant under the conditions ofthe study | |
| Sensitization (ISO10993-10: 2010) | Not a sensitizer under theconditions of the study | Biocompatible per ISO10993-1. |
| Subacute andSubchronic Toxicity(ISO 10993-11: 2006) | No subacute and subchronictoxic effects observed | |
| Genotoxicity (ISO10993-3: 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.
§ 872.6660 Porcelain powder for clinical use.
(a)
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.(b)
Classification. Class II.