K152274 · GC America, Inc. · EIH · Mar 25, 2016 · Dental
Device Facts
Record ID
K152274
Device Name
MSCB-001
Applicant
GC America, Inc.
Product Code
EIH · Dental
Decision Date
Mar 25, 2016
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 872.6660
Device Class
Class 2
Indications for Use
Metal free indirect restorations: full crown, inlays, onlays, laminated veneer
Device Story
MSCB-001 is a feldspathic porcelain block system designed for CAD/CAM dental restoration fabrication. The system consists of porcelain blocks cemented to a milling machine-specific mandrel. Dental professionals use CAD/CAM milling machines (e.g., Aadva, CEREC, E4D) to mill the blocks into indirect restorations such as crowns, inlays, onlays, or veneers. Post-milling, restorations may be customized with porcelain stain. The material composition allows for milling without requiring firing in a porcelain furnace. The device is used in dental clinics or laboratories. The output is a custom-milled dental restoration that replaces missing or damaged tooth structure, potentially benefiting the patient by restoring dental function and aesthetics.
Clinical Evidence
Bench testing only. Performance evaluated against ISO 6872:2008 standards, including chemical solubility, flexural strength, linear thermal expansion, and radioactivity. Results showed MSCB-001 (HT and LT variants) met all requirements. Flexural strength (210-214 MPa) exceeded the predicate (145 MPa). Chemical solubility and thermal expansion were statistically equivalent or within acceptable limits compared to the predicate.
Technological Characteristics
Feldspathic (glass) porcelain block system derived from phyllosilicates (potash/soda feldspar), fluxes, and refractive oxides. Form factor: block on mandrel. Dimensions: 12, 14, 14L. Connectivity: compatible with CAD/CAM milling systems (Aadva, CEREC, E4D). Standards: ISO 6872:2008, ISO 10993-1:2009. Shelf life: 10 years.
Indications for Use
Indicated for patients requiring metal-free indirect dental restorations, including full crowns, inlays, onlays, and laminated 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.
{0}------------------------------------------------
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 emblem with the words "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. The profiles are black against a white background.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
March 25, 2016
GC America Inc. Dr. Mark Heiss Director, Regulatory & Academic Affairs 3737 W. 127th Street Alsip, Illinois 60803
Re: K152274
Trade/Device Name: MSCB-001 Regulation Number: 21 CFR 872.6660 Regulation Name: Porcelain powder for clinical use Regulatory Class: II Product Code: EIH Dated: February 22, 2016 Received: February 24, 2016
# Dear Dr. Heiss:
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.
{1}------------------------------------------------
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 Industry and Consumer Education at its toll-free 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 Industry and Consumer Education 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,
Tina Kiang -
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
{2}------------------------------------------------
Section 4 - Indications for Use Statement
Indications for Use
510(k) Number (if known): K152274
Device Name: MSCB-001
Indications for Use:
1. Metal free indirect restorations: full crown, inlays, onlays, laminated veneer
Prescription Use _____________________________________________________________________________________________________________________________________________________________ (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 IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Page 4.1 of 4.1
{3}------------------------------------------------
Image /page/3/Picture/1 description: The image shows the letters 'GC' in a stylized font. The letters are in a dark teal color and are set against a white background. There are two apostrophe-like marks, one on either side of the letters. The letters are bold and slightly slanted, giving them a dynamic appearance.
GC AMERICA INC. 3737 WEST 127TH STREET ALSIP, ILLINOIS 60803 TEL (708) 597-0900 FAX (708) 371-5103
- 1. Submitter:
| GC AMERICA INC. | |
|----------------------|--------------------|
| 3737 W. 127th Street | |
| Alsip, IL 60803 | |
| Contact Person: | Mark Heiss, D.D.S. |
| Phone: | (708) 926-3090 |
| Alternate Contact: | Lori Rietman |
| Phone: | (708)-926-3092 |
| Fax: | (708) 926-9100 |
| Date Prepared: | August 7, 2015 |
- 2. Device Name:
| Proprietary Name: | MSCB-001 |
|------------------------|-----------------------------------|
| Classification Name: | Porcelain Powder for Clinical Use |
| Device Classification: | Class II, 872.6660 |
| Product Code: | EIH |
- 3. Predicate Devices:
| Company | Device | 510(k) No. | Date Cleared |
|------------------|-----------------------------|------------|--------------|
| Vita Zahnfarbrik | VITABLOCS FOR CEREC MARK II | K022408 | 7/24/2002 |
- Description of Device: 4.
MSCB is a block system consisting of a porcelain block cemented to a milling machine specific mandrel. This block/mandrel is designed to be milled in a CAD/CAM milling machine that is programmed to fabricate an indirect restoration. After milling, the restoration can be customized by use of porcelain stain. The composition of this product allows for milling without need to fire in a porcelain furnace.
MSCB-001 system is a feldspathic (glass) porcelain system based on partially crystalline but mostly vitreous materials derived from phyllosilicates such as potash or sodafeldspar, several commercially available fluxes, and various refractive oxides for mechanical enhancement.
- 5. Indications for Use:
1. Metal free indirect restorations: full crown, inlays, onlays, and laminated veneer
### Package 6.
- 1. 3 sizes: 12/ 14/ 14L
- 2. 5 blocks in one package
- 3. Available CAD/CAM system: Aadva/ CEREC /E4D
- 7. Shades
5 Vita* shades available in two translucencies:
- High Translucency (HT): A1 HT, A2 HT, A3 HT, A3.5 HT, B1 HT
- Low Translucency (LT): A1 LT, A2 LT, A3 LT, A3.5 LT, B1 LT
{4}------------------------------------------------
- One bleach shade (BL)
- Low Translucency (LT): A1 LT, A2 LT, A3 LT, A3.5 LT, B1 LT
- One bleach shade (BL)
* Vita® is a registered trademark of Vita Zahnfabrik, Bad Säckingen, Germany,
### 8. Shelf Life:
10 years from date of manufacture
### 9. Biocompatibility
According to ISO 10993-1: 2009, the following is stated:
*Sec 4.1 "Evaluation may include both a study of relevant preclinical experience and actual testing. Such an evaluation might result in the conclusion that no testing is needed if the material has a demonstrable safe history of use in a specified role and physical form that is equivalent to that of the device under design."
*Sec 6.1 "Material characterization: "If the combination of all materials, chemicals and processes has an established history of safe use in the intended application, then further characterization and biological evaluation might not be necessary."
All components in MSCB-001 have been used in predicate product, such as VITABLOCS FOR CEREC. Based on above, MSCB was considered to have an acceptable level of biocompatibility
All devices come in contact with the same body tissues (tooth - enamel, dentin) for more than 24 hours.
#### 10. Performance Testing - Bench:
It is confirmed that the device conforms to the required specifications of ISO 6872:2008 and is suitable for its intended use.
Performance testing includes:
- . Chemical solubility
- . Flexural strength
- Linear thermal expansion .
- o Radioactivity
#### Technological characteristics: 11.
All the components of the applicant device, MSCB-001, have already been used in the predicate device (VITABLOCS FOR CEREC MARK II).
- 12. Substantial equivalence:
The new and predicate device (VITABLOCS FOR CEREC MARK II) are the same in function, and similar in composition and intended use. This supports that the compatibility of the applicant device is substantially equivalent to the predicate devices.
The substantial equivalence was viewed looking at comparison to standards as well as the predicate device.
# Differences:
Compared to VITABLOCS FOR CEREC MARK II, MSCB-001 has a higher flexural strength using ISO 6872.
- 13. Conclusion
Based on a comparison of intended use, indication for use, composition, and shelf life, GC concludes that MSCB-001 is substantially equivalent to the predicate device (VITABLOCS FOR CEREC MARK II: K022408).
{5}------------------------------------------------
# Table 5.1.1 Comparison Table
| | Applicant device | Comparative device | Difference<br>Y/N | Rationale |
|-----------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Product<br>category | CAD/CAM restorative | CAD/CAM restorative | | |
| Trade name | MSCB-001 | VITABLOCS FOR CEREC<br>MARK II (K022408) | | |
| Manufacturer<br>Indications | Klema Dentalprodukte<br>1. Metal free indirect<br>restorations: full crown, inlays,<br>onlays, laminated veneer | Vita Zahnfarbrik<br>Fabrication of inlays, onlays,<br>partial and full crowns,<br>endo-crowns of molars, and<br>veneers | Y | We have added the<br>word "metal free" to<br>clarify the classification<br>of material type the<br>applicant device is part<br>of. Since the applicant &<br>predicate device are<br>both metal free<br>ceramics, the technical<br>description & function |
| Product<br>description | MSCB is a block system<br>consisting of a porcelain block<br>cemented to a milling machine<br>specific mandrel. This<br>block/mandrel is designed to<br>be milled in a CAD/CAM<br>milling machine that is<br>programmed to fabricate an<br>indirect restoration. After<br>milling, the restoration can be<br>customized by use of<br>porcelain stain. The com-<br>position of this product allows<br>for milling without need to fire<br>in a porcelain furnace. | VITABLOCS are industrially<br>manufactured, fine-structure<br>feldspar ceramic blocks used to<br>fabricate inlays, onlays,<br>veneers and crowns with<br>CEREC and inLab CAD/CAM<br>systems of Sirona Dental<br>Systems GmbH. | Y | have not changed.<br>Though the verbiage is<br>different, the type of<br>material, Feldspar type<br>ceramic is the same as<br>well as its form (Block<br>on mandrel). Both<br>products fabricate<br>indirect restoration<br>using the same<br>technology. The<br>different term that the<br>applicant device used is<br>"CAD/CAM milling<br>machine." |
| Instructions<br>for use | 1. Preparation design<br>2. Milling<br>3. Finishing and polishing<br>4. Cementation with<br>sandblasting technique<br>5. Cementation without<br>sandblasting technique<br>6. Characterization | Fabrication of the restoration in<br>the dental laboratory:<br>1. CAD design with inLab 3D<br>software.<br>2. Milling of the restoration<br>with inLab.<br>3. Placing the restoration on<br>the model.<br>4. Finishing & polishing on<br>the model. Alternatively:<br>characterization/individuali<br>zation of the shade<br>Fabrication of the restoration in<br>the dental practice:<br>1. Finishing & polishing.<br>2. Alternatively:<br>Characterization of the<br>shade,<br>individualizing/glazing.<br>3. Adhesive bonding:<br>• Ceramic etching<br>• Silanization | Y | No impact.<br>Different verbiage for<br>similar processes. |
{6}------------------------------------------------
| | Enamel/dentine etching Adhesive system Adhesive composite Oxygen protection gel 4. Finishing & final polishing |
|--|-----------------------------------------------------------------------------------------------------------------------------|
|--|-----------------------------------------------------------------------------------------------------------------------------|
Differences in verbiage of indications, product description and instructions for use are noted above. Review of these categories between predicate and applicant device demonstrated that these products had similar indications (same clinical utilization), similar description and instructions.
The variations noted and described demonstrate that the predicate and applicant device have similar clinical use that can be manage by the dental professional.
| Property /Unit | Standards | Requirements | Test results | | |
|--------------------------------|-------------------|---------------------------------------|---------------|---------------|------------------------|
| | | | MSCB<br>LT A2 | MSCB<br>HT A2 | CEREC VITABLOCS<br>MK2 |
| Chemical<br>solubility | ISO 6872:<br>2008 | Less than 100 µg/cm³ | 34 µg/cm³ | 33 µg/cm³ | 29 µg/cm³ |
| | | | 31 µg/cm³ | 35 µg/cm³ | 30 µg/cm³ |
| | | | 29 µg/cm³ | 39 µg/cm³ | 35 µg/cm³ |
| | | Average | 31 | 35 | 31 |
| | | St. Dev. | 2.5 | 3.0 | 3.2 |
| Flexural<br>strength | ISO 6872:<br>2008 | Greater than 100 MPa | 210 MPa | 207 MPa | 154 MPa |
| | | | 215 MPa | 220 MPa | 140 MPa |
| | | | 205 MPa | 215 MPa | 142 MPa |
| | | Average | 210 | 214 | 145 |
| | | St. Dev. | 5 | 6.5 | 7.5 |
| Linear<br>thermal<br>expansion | ISO 6872:<br>2008 | TG(°C)<br>+/- 10 | 470°C | 465°C | 780°C |
| | | | 468°C | 468°C | 790°C |
| | | | 472°C | 475C | 785°C |
| | | Average | 470°C | 469°C | 785° |
| | | St. Dev. | 2 | 5 | 5 |
| Radioactivity | ISO 6872:<br>2008 | Radioactivity A ≤ 1.0 By/g<br>an 238U | Conformed | Conformed | Conformed |
# Table 5.2.1 Summary of Performance Specifications
Comparing test results between applicant and predicate device for the properties of chemical solubility they were statistically equivalent and met or exceeded requirements of ISO 6872:2008.
Comparing test results between application and predicate device for the properties of flexural strength, they were statistically different with MSCB-001 having higher values. Both devices exceeded performance specification minimum.
Comparing test results between predicate and applicant device for linear thermal expansion with a TG of +/-10℃, the standard deviation of products tested were within the SD limitations requirement.
The properties listed, tested and results indicate that the application and predicate device are within the standard ISO 6872:2008. When compared to the predicate device already in the market, the performances of MSCB-001 are at least statistically equivalent and, therefore, can be considered clinically acceptable.
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.