TempSpan Clear Matrix is indicated for: Use as a clear template for intra oral polymerization of light activated materials to create temporary restorations. Use as a general impression material for monophase impression techniques.
Device Story
TempSpan Clear Matrix is a medium-viscosity vinyl polysiloxane impression material used by dental clinicians. It is supplied in 50ml auto-mix cartridges. The material serves as a clear template for creating temporary dental restorations (crowns, bridges). Clinicians take an initial impression of the patient's dentition using a clear tray; the material sets in 2 minutes. The clinician then fills the impression with temporary restorative material and places it back in the patient's mouth, where the clear matrix allows for intra-oral light-curing of the restoration. This process reduces chair time and patient discomfort. Alternatively, it can be used for extra-oral curing or as a general monophase impression material. The device benefits patients by facilitating faster, more accurate fabrication of temporary restorations.
Clinical Evidence
No clinical data. Biocompatibility testing (ISO Intramuscular Injection Test, ISO L929 MEM Elution Test) demonstrated the material is a negligible irritant and non-cytotoxic. Bench testing evaluated work time, oral set time, and Shore A hardness against predicate devices.
Technological Characteristics
Medium-viscosity vinyl polysiloxane impression material. Packaged in 50ml auto-mix cartridges. Features include clear formulation for light transmission, 1-minute working time, and 2-minute oral set time. Biocompatibility verified per ISO standards.
Indications for Use
Indicated for use as a clear template for intra-oral polymerization of light-activated materials to create temporary restorations and as a general impression material for monophase impression techniques in dental patients.
Regulatory Classification
Identification
Impression material is a device composed of materials such as alginate or polysulfide intended to be placed on a preformed impression tray and used to reproduce the structure of a patient's teeth and gums. The device is intended to provide models for study and for production of restorative prosthetic devices, such as gold inlays and dentures.
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Image /page/0/Picture/0 description: The image shows a logo for Sybron Dental Specialties. The logo features the letters 'sds' in a stylized font, with a swooping line above them. Below the letters, the words 'SYBRON DENTAL SPECIALTIES' are printed in a simple, sans-serif font.
MAY 2 2 2012
# 510(k) Summary
# Submitter:
Sybron Dental Specialties, Inc. 1717 West Collins Avenue Orange, California 92867 (714) 516-7602 - Phone (714) 516-7488 - Facsimile Wendy Garman - Contact Person
April 2012 Date Summary Prepared:
- Trade name TempSpan Clear Matrix .
- Common name Impression Material .
- Classification name ~ Material, Impression (21 CFR 872.3660, ELW) .
# Devices for Which Substantial Equivalence is Claimed:
- Memosil 2, Class II, K913537 , Product Code ELW, Heraeus Kulzer .
- Elite Glass, Class II, K073005, ELW, Zhermack S.P.A. .
- Correct VPS, Class II, K914178, Product Code ELW, Pentron Clinical .
#### Summary
#### Device Description
TempSpan Clear Matrix Material is a clear preoperative impression material that will reproduce the finest detail resulting in extremely accurate provisional restorations. Use as the preliminary impression material for intraoral and extra-oral polymerization of dual-cure provisional materials. Light curing dual-cure provisional materials may eliminate or drastically reduce the oxygen-inhibited smear layer.
TempSpan Clear Matrix Material is a medium viscosity vinyl polysiloxane material. It is packaged in a 50ml auto-mix cartridge, with an oral set time of 2 minutes. TempSpan Clear Matrix Material enables provisional restorations fabricated with dual cure materials to be light cured intra-orally and extra-orally. This process shortens the provisional procedure, minimizing chair time and patient discomfort. Additional
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features include: clear formula for intra-oral light curing, auto-mix delivery, and a quick set time with a working time of 1 minute and an oral set time of 2 minutes.
When used in a clear impression tray, TempSpan Clear Matrix can be used to create light cured temporary restorations inside a patient's mouth. To begin the process, the clinician will select a rigid, clear plastic tray and use TempSpan Clear Matrix to take an impression of the patient's current state. The impression is set aside while the clinician prepares the tooth for a crown, bridge, etc. When it is time to make the temporary restoration, the impression made using TempSpan Clear Matrix is used to form the temporary restoration. This is completed through the following procedure:
- 1) The temporary restoration material is applied directly into the TempSpan Clear Matrix impression.
- 2) The impression and temporary restoration material are placed in the patient's mouth and the material is light-cured through the clear impression tray.
- 3) Once the clear tray is removed, the temporary restoration remains attached to the patient's prepared tooth.
The clinician also has the option of using TempSpan Clear Matrix with the more traditional method of creating and cementing a temporary restoration. In this option, the clear impression is removed and the selected temporary restorative material is left to fully cure outside of the mouth. The clinician would then remove the temporary restoration from the clear impression and cement it onto the prepared tooth using a temporary cement.
### Intended use of the Device
TempSpan Clear Matrix is indicated for:
- Use as a clear template for intra oral polymerization of light activated materials to create temporary restorations.
- · Use as a general impression material for monophase impression techniques.
### Technological Characteristics Compared to Predicate
TempSpan Clear Matrix is substantially equivalent to other legally marketed devices in the United States. TempSpan Clear Matrix functions in a manner similar to Memosil 2, which is currently marketed by Heraeus Kulzer, Elite Glass which is currently marketed by Zhermack S.P.A., and Correct VPS which is currently marketed by Pentron Clinical.
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# Non-Clinical Performance Data
Biocompatibility studies were completed, which demonstrate that the material is safe for its intended use. TempSpan Clear Matrix was tested through the ISO Intramuscular Injection Test and the ISO L929 MEM Elution Test, and was found to be a negligible irritant and non-cytotoxic.
The 510(k) submission also includes data from bench testing used to evaluate performance characteristics of TempSpan Clear Matrix compared to the predicate devices, Memosil 2 currently marketed by Heraeus Kulzer, Elite Glass currently marketed by Zhermack S.P.A., and Correct VPS currently marketed by Pentron Clinical. The characteristics evaluated include Work Time, Oral Set Time and Shore A Hardness.
#### Clinical Testing
Clinical testing has not been conducted on this product.
#### Conclusion
Based upon the biocompatibility tests and bench testing, the clinical performance of TempSpan Clear Matrix is substantially equivalent to the predicate devices.
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# DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized caduceus, which is a symbol often associated with medicine and healthcare. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" are arranged in a circular pattern around the caduceus.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Pentron Clinical Ms. Wendy Garman Director, Regulatory Affairs Sybron Dental Specialties, Inc. 1717 West Collins Avenue Orange, California 92867
Re: K120013
Trade/Device Name: TempSpan Clear Matrix Regulation Number: 21 CFR 872.3660 Regulation Name: Impression Material Regulatory Class: II Product Code: ELW Dated: May 2, 2012 Received: May 3, 2012
Dear Ms. Garman:
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.
MAY 2 2 2012
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# Page 2 - Ms. Garman
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 (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours.
Nh for
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
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# Indications for Use
510(k) Number (if known):
K120013
Device Name: TempSpan Clear Matrix
Indications For Use:
TempSpan Clear Matrix is indicated for:
- . Use as a clear template for intra oral polymerization of light activated materials to create
- temporary restorations.
- Use as a general impression material for monophase impression techniques.
Prescription Use _ X (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(Please DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Sueen Perry
(Division Sign-Off)
(Division Sign-Off) Division of Anesthesiology, General Hospital Infection Control, Dental Devices
510(k) Number: K120013
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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.
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You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
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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.
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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.
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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.
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Reading rule for every project: how many summaries do you read in full?
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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.
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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.
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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.
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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.
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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.