PackFil Dual Cured Resin Modified Glass Ionomer Restorative Cement

K152652 · Gaia Dental Products, Inc. · EMA · Apr 5, 2016 · Dental

Device Facts

• Record ID: K152652
• Device Name: PackFil Dual Cured Resin Modified Glass Ionomer Restorative Cement
• Applicant: Gaia Dental Products, Inc.
• Product Code: EMA · Dental
• Decision Date: Apr 5, 2016
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 872.3275
• Device Class: Class 2
• Attributes: Therapeutic, Pediatric

Intended Use

PackFil RMGI Restorative Cement is indicated for filling and restoration of tooth of following typical applications: - Primary teeth restorations; - Class I restorations: - Class III and V restorations: - Transitional restorations; - Base liners or laminated/sandwich restorations; - Selective core build-ups (>50% coronal tooth intact);

Device Story

PackFil RMGI is a two-part, paste/paste resin-modified glass ionomer restorative cement used by dental professionals for tooth restoration. The device utilizes triple-curing mechanisms: acid-base glass ionomer reaction, methacrylate resin chemical curing, and light-curing. It is supplied in a dual-barrel cartridge system (e.g., MixPac) for auto-mixing via a tip or manual mixing on a pad. The material is radiopaque (2.5 mm aluminum equivalent) and tooth-colored. Clinicians apply the cement directly to the tooth preparation. The device provides structural support and restorative filling, benefiting patients by restoring tooth function and integrity in various clinical scenarios, including pediatric and adult restorative dentistry.

Clinical Evidence

Bench testing only. Performance evaluated per ISO 9917-2:2009. Results: Bonding strength (18-22 MPa), flexural strength (36-41 MPa), compressive strength (230-245 MPa), radiopacity (2.5 mm Al), and depth of cure (3 mm). Biocompatibility testing per ISO 10993-1:2009 included cytotoxicity (L929MEM), intracutaneous irritation, genotoxicity, sensitization, and implantation, all showing results equivalent to controls or non-reactive.

Technological Characteristics

Two-part paste/paste resin-modified glass ionomer. Materials: silane-treated barium-boro-silicate glass, radiopaque fluoroaluminosilicate glass, aqueous polyacrylic acid copolymer, phosphate, and methacrylate resins. Dimensions: hybrid particle size 0.01-5 micrometers. Energy: light-curable (VLC) and chemical-cure. Delivery: dual-barrel cartridge system. Standards: ISO 9917-2 (performance), ISO 10993-1 (biocompatibility).

Indications for Use

Indicated for filling and restoration of teeth in patients requiring primary teeth restorations, Class I, III, or V restorations, transitional restorations, base liners, laminated/sandwich restorations, or selective core build-ups (>50% coronal tooth intact).

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

• GC, Fuji Filling LC (K051427)
• 3M ESPE, Ketac Nano Glass Ionomer Restorative (K052235)

Submission Summary (Full Text)

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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002

April 5, 2016

Gaia Dental Products, Inc. Weitao Jia President 290 Pratt Street, Unit 2314 Meriden, Connecticut 06450

Re: K152652

Trade/Device Name: PackFil™ Resin Modified Glass Ionomer Restorative Cement Regulation Number: 21 CFR 872.3275 Regulation Name: Dental Cement Regulatory Class: II Product Code: EMA, EBF Dated: February 18, 2016 Received: February 24, 2016

Dear Weitao Jia:

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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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 [phone] or [phone] 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 [phone] or [phone] or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely yours,

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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

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## Indications for Use

510(k) Number (if known)

### K152652

Device Name

PackFil Resin Modified Glass Ionomer Restorative Cement

Indications for Use (Describe)

PackFil RMGI Restorative Cement is indicated for filling and restoration of tooth of following typical applications:

- · Primary teeth restorations;
- · Class I restorations:
- · Class III and V restorations:
- · Transitional restorations;
- · Base liners or laminated/sandwich restorations;
- · Selective core build-ups (>50% coronal tooth intact);

Type of Use (Select one or both, as applicable)

Prescription Use (Part 21 CFR 801 Subpart D)

Over-The-Counter Use (21 CFR 801 Subpart C)

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# 510(k) Summary

## K152652

## Submitter:

Gaia Dental Products, Inc. 290 Pratt Street, Unit 2314 Meriden, CT 06450 [phone]- Phone [phone] - Facsimile Weitao Jia -Contact Person

Date Summary Prepared/modified: April 4, 2016

#### Device Name:

- Trade Name – PackFil™ Resin Modified Glass Ionomer Restorative Cement
- Common Name – Resin Modified Glass Ionomer Dental Cement
- Classification Name EMA, Dental Cement, per 21 CFR § 872.3275 ●
- Additional Product Code - EBF, Tooth Shade Resin Material

#### Devices for Which Substantial Equivalence is Claimed:

Primary Predicate: GC, Fuji Filling LC; K051427

Reference Predicate: 3M ESPE, Ketac Nano Glass Ionomer Restorative; K 052235

#### Device Description:

PackFil Resin Modified Glass Ionomer (RMGI) Restorative Cement is used by dental professionals and intended for filling and restoration of teeth. The subject device possesses triple curing mechanisms of conventional acid-base glass ionomer reaction. methacrylate resin chemical curing and light curable on demand. It is a tooth colored, radiopaque (equivalent of 2.5 mm of aluminum), two-part paste/paste resin modified glass ionomer restorative cement material, with each part is packaged separately when not in use. PackFil RMGI provides the common benefits typical of conventional glass ionomer materials, with the feature of being packable after the two parts mixed together. The filler content of this system is primarily a combination of traditional silane treated barium-boro-silicate glass filler and radiopaque acid reactive fluoroaluminosilicate glass filler having a hybrid particle size range from about 0.01 up to about 5 micrometers while the resin system has a combination of aqueous polyacrylic acid copolymer, phosphate and other polymerizable methacrylate resins.

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PackFil RMGI Restorative Cement is packaged in a dual barrel cartridge system such as the dental MixPac®* 4 ml dual-barrel syringe or their equivalents. The picture below illustrates the mode of operation by using a matching auto-mixing tip attached to the syringe orifice and dispensed with help of using the MixPac® dispensing gun, or simply by hand; or the cement material can be pushed out with hand from the syringe on a mixing pad and subsequently mixed using a dental spatula and deliver, if desirable.

Image /page/4/Picture/1 description: The image shows a MixPac 5 ml double barrel cartridge gun with auto-mixing tips. The gun has a hand-operated cartridge plunger. There are also tubes of PackFil cement dispensing on a pad, mixing with a dental spatula.

*MixPac® dual cartridge systems and dispensing accessories for dental use are products of Sulzer MIXPAC USA, Inc.

The PackFil Resin Modified Glass Ionomer Restorative Cement product is sold to clinicians in kits or refills. A Kit is essentially a set of the various shaded material bundled together. The clinician receives the devices packaged clean, but non-sterile, in appropriate, labeled containers with instructions for use enclosed.

#### Summary of Kev Performance Testing Results – bench

| | Self-cured | Light cured |
|----------------------------------------|------------|----------------------------|
| Bonding Strength to<br>Resin composite | 18 MPa | 22 MPa |
| Flexural Strength ( MPa) | 41 MPa | 36 MPa |
| Compressive Strength (MPa) 245 MPa | | 230 MPa |
| Radiopacity | | 2.5 mm aluminum equivalent |
| Self-cure working time | 3 minutes | N/A |

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| Self-cure setting time<br>(From start of mixing) | 6 minutes | N/A |
|--------------------------------------------------|-----------|-------------|
| Depth of cure (VLC for 20'') | N/A | 3 mm |
| Sensitivity to Ambient Light | N/A | >60 seconds |

The performance data above satisfies the specification of ISO 9917-2: Dentistry – Water Based Cements - Part 2: Resin Modified Cements, where applicable.

#### Indications for Use:

PackFil RMGI Restorative Cement is indicated for filling and restoration of tooth of following typical applications:

- Primary teeth restorations;
- . Class I restorations;
- . Class III and V restorations;
- Transitional restorations;
- . Base liners or laminated/sandwich restorations;
- Selective core build-ups (>50% coronal tooth intact);

#### Substantial Equivalence:

PackFil RMGI Restorative Cement is substantially equivalent to two other legally marketed devices in the United States. PackFil RMGI functions in a manner similar to and is intended for the same use as the Fuji Filling LC, marketed by GC America , and Ketac Nano Glass lonomer Restorative, marketed by 3M ESPE. Every component used in the PackFil RMGI is commonly used in a variety of dental resin modified glass ionomers, resin composites, dental cements and dental bonding system products.

Similar to the predicate devices, PackFil RMGI is a catalyst/base paste formulation, which combines a conventional acid-base glass ionomer cement reaction with modification of methacrylate resin chemistry which allows for self-cure and/or light cure. The application procedures and indications have not deviated from the prior generations of conventional restorative glass ionomer cements as well as the substantial equivalent predicate devices.

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| Product | Description | Intended Use | Indications for Use | General Composition |
|---------------------------------------------------------------------------|---------------------------------------------------------------------------|---------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| PackFil<br>Resin<br>Modified<br>Glass<br>Ionomer<br>Restorative<br>Cement | A paste-<br>paste form<br>resin<br>modified<br>glass<br>ionomer<br>cement | Dental<br>restorative<br>as a filling<br>and/or base<br>liner | • Primary teeth<br>restorations;<br>• Class I restorations;<br>• Class III and V<br>restorations;<br>• Transitional<br>restorations;<br>• Base liners or<br>laminated/sandwich<br>restorations;<br>• Selective core build-<br>ups (>50% coronal tooth<br>intact); | Part A: A blend of<br>aqueous polyacrylic<br>acid, methacrylate and<br>phosphate<br>methacrylate resins,<br>silane treated glass,<br>silica, and<br>polymerization<br>component;<br>Part B: A blend of<br>methacrylate resins,<br>ionomer glass, zinc<br>oxide, calcium<br>phosphate, silica,<br>polymerization<br>components and<br>pigments |
| 3M ESPE<br>Ketac<br>Nano<br>Glass<br>Ionomer<br>Restorative<br>K052235 | A paste-<br>paste form<br>resin<br>modified<br>glass<br>ionomer<br>cement | Dental<br>restorative<br>as a filling<br>and/or base<br>liner | • Primary teeth restorations<br>• Small Class I restorations<br>• Class III and V restorations<br>• Transitional restorations<br>• Filling defects and undercuts<br>• Laminate/Sandwich technique<br>• Small core build-ups where at<br>least 50% of coronal tooth<br>structure is remaining<br>for support | Part A: Silane-treated<br>glass, zirconia and<br>silica; ionomer glass;<br>methacrylate resins.<br>Photo- polymerization<br>initiators.<br>Part B: Silane-treated<br>ceramic;<br>methacrylate-modified<br>co-polymer of acrylic<br>and itaconic acids;<br>methacrylate; water, |
| GC Fuji<br>Filling LC<br>K051427 | A paste-<br>paste form<br>resin<br>modified<br>glass | Dental<br>restorative<br>as a filling<br>and/or base<br>liner | • Class V Restorations<br>• Under posterior<br>composites<br>• Class III Restorations<br>• Class I Pediatric<br>Restorations and Core | Part A:<br>Aluminoflurosilicate<br>ionomer glass;<br>methacrylate resins.<br>Photo-initiator. |

### Table below listed in chart form, the similarities between the submitted device, PackFil Resin Modified Glass Ionomer Restorative Cement and the two predicate devices

510(K) Submission for PackFil Resin Modified Glass Ionomer Cement

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| ionomer | | Build-Ups | Part B: Polyacrylic acid; water; methacrylate and filler. |
|---------|--|-----------|-----------------------------------------------------------|
| cement | | | |

## Biocompatibility studies of PackFil RMGI Restorative Cement have been selected according to ISO 10993-1:2009. The following studies were performed with the results summarized below:

| Test No. | ISO Test Method | Test Description | Result Summary |
|----------|--------------------|------------------------------------------|--------------------------------------|
| 1 | 10993-5:2009 | Cytotoxicity-<br>L929MEM Elution | No cytotoxic effect |
| 2 | 10993-10:2010, 3ed | Irritation -<br>Intracutaneous Injection | Not more than the<br>control article |
| 3 | 10993-3:2003, 2ed | Genotoxicity -<br>Mutation Study | Non-mutagenic |
| 4 | 10993-10:2010, 3ed | Sensitization<br>Maximization | No sensitization |
| 5 | 10993-6:2007 | Implantation - four<br>weeks | Same as the negative<br>control |

### Conclusion

Based upon the descriptive and comparative data provided within this submission, we have demonstrated substantial equivalency of PackFil Resin Modified Glass ionomer Restorative Cement material in design/composition, intended use, indications of use and performances including biocompatibility to its predicate devices. Therefore, this PackFil Resin Modified Glass Ionomer Restorative Cement is substantially equivalent to the declared predicate devices.