Who is the manufacturer of G-CEM ONE?

GC America, Inc. filed the 510(k) submission for G-CEM ONE (K200798).

What is the FDA product code for G-CEM ONE?

EMA. It is classified under 21 CFR 872.3275 as a Class 2 device in the Dental panel.

What is the regulatory pathway for G-CEM ONE?

510(k) clearance (submission type: Traditional).

Who can help prepare an FDA 510(k) submission like G-CEM ONE?

Innolitics — a medical-device software consultancy — provides regulatory and engineering support for FDA 510(k) submissions. See https://innolitics.com/services/510ks/ or contact https://innolitics.com/contact.

G-CEM ONE

K200798 · GC America, Inc. · EMA · Nov 24, 2020 · Dental

Device Facts

Record ID	K200798
Device Name	G-CEM ONE
Applicant	GC America, Inc.
Product Code	EMA · Dental
Decision Date	Nov 24, 2020
Decision	SESE
Submission Type	Traditional
Regulation	21 CFR 872.3275
Device Class	Class 2
Attributes	Therapeutic

Intended Use

1. Cementation of all types of all ceramic, resin and metal-based inlays, onlays, crowns and bridges. 2. Cementation of metal, ceramic, fiber posts, and cast post and cores. 3. Cementation of all ceramic and composite veneers. 4. Final cementation of crowns and bridges on implant abutments.

Device Story

G-CEM ONE is a dual-cured self-adhesive resin cement used in dental clinics by dentists. It consists of a two-chamber syringe (Paste A and B) applied via an automix tip. The device functions through polymerization of methacrylate monomers, initiated chemically or via light irradiation. An optional 'G-CEM ONE ADHESIVE ENHANCING PRIMER' can be applied to the tooth surface to promote surface modification and cement polymerization. The cement is used to bond restorations (inlays, onlays, crowns, bridges, posts, veneers) to tooth structure or implant abutments. The clinician applies the mixed paste directly to the restoration or cavity; the material hardens to provide physical strength and sealing of dentin tubules. The device benefits patients by providing a stable, durable, and radiopaque luting material for dental restorations.

Clinical Evidence

No clinical testing has been performed on this device. Substantial equivalence is supported by bench testing, including film thickness, working time, setting time, flexural strength, water sorption, solubility, and radiopacity, all conforming to ISO 4049:2019. Biocompatibility was assessed per ISO 10993-1, including cytotoxicity (L929 MEM elution), sensitivity (Kligman maximization), and irritation (buccal irritation) tests.

Technological Characteristics

Dual-cured self-adhesive resin cement; methacrylate-based. Supplied in a one-body/two-chamber syringe. Polymerization via chemical initiators and photo-initiators (light-cured). Complies with ISO 4049:2019 for polymer-based restorative materials. Radiopaque. Includes an optional adhesive enhancing primer (light blue transparent liquid).

Indications for Use

Indicated for cementation of ceramic, resin, and metal-based inlays, onlays, crowns, bridges, posts, cores, and veneers, as well as final cementation on implant abutments.

Regulatory Classification

Identification

Zinc oxide-eugenol is a device composed of zinc oxide-eugenol intended to serve as a temporary tooth filling or as a base cement to affix a temporary tooth filling, to affix dental devices such as crowns or bridges, or to be applied to a tooth to protect the tooth pulp. Dental cement other than zinc oxide-eugenol is a device composed of various materials other than zinc oxide-eugenol intended to serve as a temporary tooth filling or as a base cement to affix a temporary tooth filling, to affix dental devices such as crowns or bridges, or to be applied to a tooth to protect the tooth pulp.

Predicate Devices

G-CEM LinkForce (K153231)

Reference Devices

G-CEM LINKACE (GAM-200) (K120243)

Related Devices

K242366 — OverCEM SA Universal; OverCEM SA Translucent; OverCEM SA Opaque; OverCEM Ti-Abutment; OverCEM Cer-Abutment · Overfibers S.R.L. · Jan 10, 2025
K060701 — BISCEM TRANSLUCENT, BISCEM OPAQUE · Bisco, Inc. · May 15, 2006
K252785 — TopCEM Vigor SA Self-Adhesive Resin Cement · Rizhao Huge Biomaterials Company, Ltd. · Dec 12, 2025
K152691 — EDS Universal Cement · Essential Dental Systems, Inc. · Feb 25, 2016
K254063 — iCEM Universal Plus · Kulzer, LLC · Dec 19, 2025

Submission Summary (Full Text)

{0}------------------------------------------------ Image /page/0/Picture/0 description: The image contains the logos of the Department of Health and Human Services and the Food and Drug Administration (FDA). The Department of Health and Human Services logo is on the left, and the FDA logo is on the right. The FDA logo includes the letters "FDA" in a blue square, followed by the words "U.S. Food & Drug Administration" in blue text. November 24, 2020 GC America Inc. Mark Heiss Director, Regulatory & Academic Affairs 3737 W. 127th Street Alsip, Illinois 60803 Re: K200798 Trade/Device Name: G-CEM ONE Regulation Number: 21 CFR 872.3275 Regulation Name: Dental Cement Regulatory Class: Class II Product Code: EMA Dated: March 23, 2020 Received: March 26, 2020 Dear Mark 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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm product submissions. 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. 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, {1}------------------------------------------------ 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) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-devices/medical-device-safety/medical-device-reporting-mdr-howreport-medical-device-problems. For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) CDRH and Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See DICE (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatorythe website assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100). Sincerely, For Srinivas "Nandu" Nandkumar, Ph. D. Director DHT1B: Division of Dental Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health Enclosure {2}------------------------------------------------ # Section 4 - Indications for Use | DEPARTMENT OF HEALTH AND HUMAN SERVICES | |-----------------------------------------| | Food and Drug Administration | | Form Approved: OMB No. 0910-0120 | |----------------------------------| | Expiration Date: 06/30/2020 | | See PRA Statement below. | **Indications for Use** | 510(k) Number (if known) | K200798 | |--------------------------|-----------| | Device Name | G-CEM ONE | Indications for Use (Describe) 1. Cementation of all types of all ceramic, resin and metal-based inlays, onlays, crowns and bridges. 2. Cementation of metal, ceramic, fiber posts, and cast post and cores. 3. Cementation of all ceramic and composite veneers. 4. Final cementation of crowns and bridges on implant abutments. Type of Use (Select one or both, as applicable) | Prescription Use (Part 21 CFR 801 Subpart D) Subpart C) | Over-The-Counter Use (21 CFR 801 | |-----------------------------------------------------------------------------|---------------------------------------------------------------------------------| | <div> <img alt="Checked" src="checkbox_checked.png"/> </div> | <div> <img alt="Unchecked" src="checkbox_unchecked.png"/> </div> | CONTINUE ON A SEPARATE PAGE IF NEEDED. This section applies only to requirements of the Paperwork Reduction Act of 1995. ### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.* The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to: > Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov "An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number." {3}------------------------------------------------ Image /page/3/Picture/0 description: The image shows the text "GC" in a teal color. The text is surrounded by single quotation marks on both sides. The background is white. Image /page/3/Picture/1 description: The image shows a geometric design with a partial outline of the number 7 on the left side. To the right of the number 7 are seven small, tilted rectangles arranged in a triangular pattern. The color of the number 7 outline and the rectangles is a teal or turquoise shade. 1 # 510(k) Summary - K200798 - 1. Submitter Information: 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) 925-0373 | | Date Prepared: | March 23, 2020 | - 2. Device Name: Proprietary Name: G-CEM ONE Classification Name: Dental cement Device Classification: Class II, 872.3275 Product Code: EMA - Predicate Devices: 3. | Product | Applicant | 510(k) No. | Code No | Predicate | Decision Date | |-------------------------|--------------------|------------|---------|-----------|------------------| | G-CEM LinkForce | GC America Inc. | K153231 | EMA | Primary | 07/06/2016 | | G-CEM LINKACE (GAM-200) | GC America Inc. | K120243 | EMA | Reference | 06/27/2012 | #### 4. Description of Device: G-CEM ONE is a dual-cured self-adhesive resin cement with a tooth primer, G-CEM ONE ADHESIVE ENHANCING PRIMER. The mixed cement hardens through polymerization. The adhesive component is an acidic monomer which also can polymerize with frame-forming monomers. This copolymerizing reaction provides higher physical strength than resin-modified glass ionomer cements. Using the primer on the prepared tooth, surface modification and cement polymerization are promoted and hardened along with the cement. The ce ment syringe consists of Paste A and B, which are filled in a one-body/two chamber syringe. Both pastes are automixed with a mixing tip and applied directly to restorations or prepared cavity. Image /page/3/Picture/12 description: The image shows a G-CEM ONE self-adhesive resin cement syringe. The syringe has a brown dispensing tip on the left side and a black plunger on the right side. The label on the syringe reads "G-CEM ONE SELF ADHESIVE RESIN CEMENT A2 4.6g(2.7mL)". {4}------------------------------------------------ - న. Indications for Use - 1. Cementation of all types of all ceramic, resin and metal-based inlays, onlays, crowns and bridges. - 2. Cementation of metal, ceramic, fiber posts, and cast post and cores. - 3. Cementation of all ceramic and composite veneers. - 4. Final cementation of crowns and bridges on implant abutments. #### 6. Package: - 1. Entrance Kit G-CEM ONE syringe (4.6 g / 2.7 mL) (1), G-CEM Automix Tip Regular (8), G-CEM Automix Tip for endo with Extension Tip (2), G-CEM ONE ADHESIVE ENHANCING PRIMER (1), - 2. Twin Refill G-CEM ONE syringe (4.6 g / 2.7 mL) (2), G-CEM Automix Tip Regular (15), G-CEM Automix Tip for endo with Extension Tip (5) - 3. Single Refill G-CEM ONE syringe (4.6 g / 2.7 mL) (1), G-CEM Automix Tip Regular (8), G-CEM Automix Tip for endo with Extension Tip (2) - 4. G-CEM ONE ADHESIVE ENHANCING PRIMER G-CEM ONE ADHESIVE ENHANCING PRIMER (1) - 7. Shades available: A2, AO3, Translucent, BO1, White opaque - 8. Shelf Life and Storage Conditions: - Shelf Life 2 years i - Recommended for optimal performance, store at temperature of 4-25°C (39.2-77.0°F) away from heat, moisture and direct sunlight. - 9. Performance Bench Tests: It is confirmed that the device conforms to the required specifications of ISO 4049: 2019 Dentistry -Polymer-based restorative materials and Company Specification: 1AB-1500-3-10666. Performance testing includes: | | Property | Test method | Requirement | |---|-------------------|----------------------------------------------------------------------|-----------------------------------------------------------------------------| | 1 | Film thickness | ISO 4049: 2019 5.2.2 Film thickness of luting materials | No more than 50 µm. | | 2 | Working time | ISO 4049: 2019 5.2.4 Working time, Class 1 and 3 luting materials | No detectable change in the homogeneity. | | 3 | Setting time | ISO 4049: 2019 5.2.6 Setting time, Class 3 materials | Not more than 10 min. | | 4 | Flexural strength | ISO 4049: 2019 5.2.9 Flexural strength | Equal to or greater than 50 MPa. | | 5 | Water sorption | ISO 4049: 2019 5.2.10 Water sorption and solubility | 40 µg/mm³ or less. | | 6 | Solubility | ISO 4049: 2019 5.2.10 Water sorption and solubility | 7.5 µg/mm³ or less. | | 7 | Radiopacity | ISO 4049: 2019 5.5 Radiopacity | Equal to or greater than the radiopacity of the same thickness of aluminum. | ### G-CEM ONE {5}------------------------------------------------ | | Property | Test method | Requirement | |---|------------------|------------------------------------------------------------------------------------------------------------|-------------------------------------------------------| | 1 | Appearance | Company Specification 1AB-1500-3-10666 - Visual inspection | Should be homogenous and free from foreign matters | | 2 | Coat ability | Company Specification 1AB-1500-3-10666 - Apply a primer thinly on a glass plate using an applicator. | Form uniform film without unevenness | | 3 | Color tone | Company Specification 1AB-1500-3-10666 - Visual inspection | It must be light blue transparent liquid. | | 4 | Refractive index | Company Specification 1AB-1500-3-10666 - Refraction analysis | 1.3960-1.3990 | ## G-CEM ONE ADHESIVE ENHANCING PRIMER #### 10. Non-Clinical Performance Testing: A biocompatibility assessment was completed according to ISO 10993-1:2009, Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process. G-CEM ONE is a dual-cured self-adhesive resin cement with a tooth primer "G-CEM ONE ADHESIVE ENHANCING PRIMER" and does come in contact with body tissues (tooth – enamel, dentin) for more than 24 hours. In conclusion, biocompatibility of G-CEM ONE is acceptable device from the biological evaluation result. ### Cytotoxicity (L929 MEM ELUTION TEST) Based on the criteria of the protocol of ISO 10993-5 ### Sensitivity (KLIGMAN MAXIMIZATION TEST) Based on the criteria of the protocol of ISO 10993-10 ### Irritation (PRIMARY ORAL (BUCCAL) IRRITATION TEST) Based on the criteria of the protocol of ISO 10993-10 ### 11. Clinical Performance Testing No clinical testing has been performed on this device. - 12. Comparison of Technology: The specifications that are important to determine substantial equivalency of a dental adhesive system are bond strengths associated to tooth structure (enamel and dentin) and other substrates. It is also important to evaluate the equivalence of sealing property of dentin tubules. The bond strength of the applicant device to dentin is equivalent to that of the reference predicate device. The curing mechanism of the applicant device and predicate device are substantially equivalent in principle. Therefore, the applicant device and predicate device 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. {6}------------------------------------------------ All the components of the applicant device, G-CEM ONE and G-CEM ONE ADHESIVE ENHANCING PRIMER, have already been used in the predicate devices. The bonding mechanism of the predicate device is applying it to tooth structure, then bonding chemically and mechanically by polymerization of uncured methacrylate ester monomers. The subject device has been shown to be substantially equivalent to the predicate device. The following differences may be noted between G-CEM ONE and the predicate device. - -The applicant device also has a primer which allows it to have additional indications, similar to that of the primary predicate device. - -The applicant device is a self-adhesive resin cement, and unlike the G-CEM LinkForce of an adhesive resin cement, it can be bonded to various materials without a primer. {7}------------------------------------------------ | | Applicant Device | Primary Device | Reference Device | |-------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Trade name | G-CEM ONE | G-CEM LinkForce K153231 | G-CEM LINKACE (GAM-200) K120243 | | Manufacturer | GC Corporation | GC Corporation | GC Corporation | | Product category | Self-adhesive resin cement | Adhesive resin cement | Self-adhesive resin cement | | Paste/Paste ratio | Paste A / Paste B = 1.3 / 1.0 (w/w) | Paste A / Paste B = 1.0 / 1.0 (w/w) | Paste A / Paste B = 1.3 / 1.0 (w/w) | | Indications for Use | 1. Cementation of all types of all ceramic, resin and metal-based inlays, onlays, crowns and bridges. 2. Cementation of metal, ceramic, fiber posts, and cast post and cores. 3. Cementation of all ceramic and composite veneers. 4. Final cementation of crowns and bridges on implant abutments. | 1. Cementation of all types of all ceramic, resin and metal-based inlays, onlays, crowns and bridges. 2. Cementation of metal, ceramic, fiber posts, and cast post and cores. 3. Cementation of all ceramic and composite veneers. 4. Permanent cementation of crowns and bridges on implant abutments. | 1. Cementation of all types of all ceramic, resin and metal-based inlays, onlays, crowns and bridges. 2. Cementation of metal, ceramic, fiber posts, and cast post and cores. | | Product description | The components consist of Paste A and B, which are filled in a one-body syringe. Both pastes are automixed with a mixing tip and directly applied to restorations or the prepared cavity. | The components consist of Paste A and B, which are filled in a one-body syringe. Both pastes are automixed with a mixing tip and directly applied to restorations or the prepared cavity. | The components consist of Paste A and B, which are filled in a one-body syringe. Both pastes are automixed with a mixing tip and directly applied to restorations or the prepared cavity. | | Instruction for use | 1. Tooth preparation 2. Application of G-CEM ONE ADHESIVE ENHANCING PRIMER (Optional) 3. Restoration preparation 4. Dispensing 5. Cementation 6. Excess cement removal 7. Final set 8. Final polishing | 1. Try-fit of the restoration 2. Pre-treatment of the restoration 3. Pre-treatment of the preparation 4. Dispensing 5. Cementation 6. Excess cement removal 7. Final set 8. Final polishing and adjustments | 1. Tooth preparation 2. Restoration preparation 3. Dispensing 4. Cementation 5. Excess cement removal 6. Final set 7. Final polishing | | Light curing specification | Light cure using a light curing unit. 10 sec. (High Power LED Light) (>1200mW/cm2) 20 sec. (Halogen/LED) (700 mW/cm2) | Light cure using a light curing unit. 10 sec. (High Power LED Light) (>1200mW/cm2) 20 sec. (Halogen/LED) (700 mW/cm2) | Light cure using a light curing unit. 10 sec. (High Power LED Light) (>1200mW/cm2) 20 sec. (Halogen/LED) (700 mW/cm2) | | Table 5.1 (Continued) | | | | | | Applicant Device | Primary Device | Reference Device | | Trade name | G-CEM ONE | G-CEM LinkForce K153231 | G-CEM LINKACE (G-CEM LINKACE (GAM- 200)) K120243 | | Manufacturer | GC Corporation | GC Corporation | GC Corporation | | Comparison of Technology | Methacrylates contained in Paste A polymerize by polymerization initiators contained in Paste A and Paste B. In addition, they also polymerize by light irradiation with photo polymerization initiators contained in Paste A. Furthermore, using G-CEM ONE ADHESIVE ENHANCING PRIMER for the cavity and abutment tooth, surface modification and cement polymerization are promoted and hardened with the cement. Methacrylates contained in this material are very hydrophobic and set material is stable. Therefore, the ingredients in the cured material are difficult to elute in water. | Methacrylates contained in Paste A polymerize by polymerization initiators contained in Paste A and Paste B. In addition, they also polymerize by light irradiation thanks to photo polymerization initiators contained in Paste A. Furthermore, using the mixture of G-Premio BOND and G-Premio BOND DCA for the cavity and abutment tooth, surface modification and cement polymerization are promoted and hardened with the cement. Methacrylates contained in this material are very hydrophobic and set material is stable. Therefore, the ingredients in the cured material are difficult to elute in water. | Methacrylates contained in Paste A polymerize by polymerization initiators contained in Paste A and Paste B. In addition, they also polymerize by light irradiation thanks to photo polymerization initiators contained in Paste A. Methacrylates contained in this material are very hydrophobic and set material is stable. Therefore, the ingredients in the cured material are difficult to elute in water. | Table 5.3. Comparison of applicant and predicate {8}------------------------------------------------ # 13. Conclusion Based on similarities in intended use, mode of action, and performance testing, G-CEM ONE is substantially equivalent to the predicate device.