← Product Code KJJ · K162311

# Straumann PrefGel (K162311)

_Institut Straumann AG · KJJ · Mar 7, 2017 · DE · SESE_

**Canonical URL:** https://fda.innolitics.com/device/K162311

## Device Facts

- **Applicant:** Institut Straumann AG
- **Product Code:** KJJ
- **Decision Date:** Mar 7, 2017
- **Decision:** SESE
- **Submission Type:** Traditional
- **Device Class:** Class U
- **Review Panel:** DE
- **Attributes:** Therapeutic

## Intended Use

Straumann PrefGel is intended for topical application onto exposed root surfaces during periodontal surgery in order to remove the smear layer.

## Device Story

Straumann PrefGel is a neutral EDTA gel (24% edetate disodium in carboxymethyl cellulose) used during periodontal surgery. The clinician applies the gel topically to exposed root surfaces. The EDTA chemically removes the smear layer produced by mechanical debridement, exposing the underlying collagenous matrix of the dentin. This exposure facilitates the linking of fibrin in blood clots to the root surface, potentially improving periodontal healing. The device is supplied in a pre-filled syringe with a blunt cannula for application. The current submission introduces updated primary, secondary, and tertiary packaging materials and configurations compared to the predicate, while the therapeutic formulation remains unchanged.

## Clinical Evidence

No new clinical data was provided. Substantial equivalence is supported by bench testing, including clean room qualification (ISO 14644-1), packaging equipment validation (ISO 11607), transport validation (ISTA 2A), biocompatibility (ISO 10993-1, -5, -18), and sterilization validation (ISO 11135, ISO 11737-2, ISO 10993-7).

## Technological Characteristics

Therapeutic agent: 24% edetate disodium [EDTA] 2 H2O in carboxymethyl cellulose (CMC) gel. Primary package: Type I borosilicate glass syringe, poly-isoprene rubber tip cap/plunger, polystyrene plunger rod, polypropylene back stop. Secondary package: PETG thermoformed tray with Tyvek 1073B lid stock. Sterilization: Heat (121°C) for primary package; Ethylene oxide (EtO) for secondary package (SAL 10^-6).

## Predicate Devices

- Straumann® PrefGel® ([K063812](/device/K063812.md))

## 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

March 7, 2017

Institut Straumann Ag % Jennifer Jackson Director Of Regulatory Affairs And Quality Straumann USA, LLC 60 Minuteman Road Andover, Massachusetts 01810

Re: K162311

Trade/Device Name: Straumann PrefGel Regulation Number: 21 CFR None Regulation Name: None Regulatory Class: Unclassified Product Code: KJJ Dated: February 5, 2017 Received: February 7, 2017

Dear Jennifer Jackson:

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.

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 

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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 devicerelated 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/ResourcesforYou/Industry/default.htm. 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

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,

Susan Runno DDS, MA

For Tina Kiang, Ph.D. Acting 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)

Device Name

Straumann® PrefGel®

Indications for Use (Describe)

Straumann PrefGel is intended for topical application onto exposed root surfaces during periodontal surgery in order to remove the smear layer.

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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## K162311 510(k) Summary

| Submitter:                        | Straumann USA, LLC (on behalf of Institut Straumann AG)<br>60 Minuteman Road<br>Andover, MA 01810<br>Registration No.: 1222315 Owner/Operator No.: 9005052                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-----------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person:                   | Jennifer M. Jackson, MS<br>Director of Regulatory Affairs and Quality<br>+1 (978) 747-2509                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| Prepared By:                      | Christopher Klaczyk<br>Head of North American Regulatory Affairs<br>Institut Straumann AG<br>+41 61 965 1260                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| Date Prepared:                    | March 7, 2017                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| Product Code(s):                  | KJJ                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Device Class:                     | Unclassified (pre-amendments device)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| Classification Reg.:              | N/A                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Classification Panel:             | Dental                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| Classification Name:              | Cleanser, root canal                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| Proprietary Name:                 | Straumann® PrefGel®                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Predicate Device(s):              | K063812, Straumann® PrefGel® (Institut Straumann AG)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| Reference Device(s)               | None                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| Device Description:               | Straumann PrefGel is a neutral EDTA formulation intended for<br>topical application onto exposed root surfaces during<br>periodontal surgery in order to remove the smear-layer.<br>Mechanical debridement of a root surface inevitably produces a<br>smear-layer, which in turn may prevent or retard periodontal<br>healing. Exposure of collagen fibers may be important for<br>linking fibrin in the blood clot to the root surface. Clinical<br>studies with PrefGel have demonstrated the ability to remove<br>the smear-layer and to expose the collagenous matrix of dentin<br>surfaces.                                                                                                                                                                                                   |
| Indications For Use               | Straumann PrefGel is intended for topical application onto<br>exposed root surfaces during periodontal surgery in order to<br>remove the smear layer.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| Intended Use:                     | PrefGel has been shown to effectively remove the smear-layer.<br>PrefGel has also been shown to produce a fibrillar collagenous<br>meshwork on the exposed and conditioned root surface by<br>selective removal of mineral.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| Materials:                        | Edetate disodium [EDTA] 2 H2O 24% neutral in carboxymethyl<br>cellulose (CMC) gel                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Technological<br>Characteristics: | This submission describes an alternate packaging system for the<br>Straumann® PrefGel® product. We have proposed changes to<br>the primary, secondary and tertiary packaging. The therapeutic<br>material (EDTA 2 H2O 24% neutral in CMC gel) remains<br>unchanged, as does the Indications For Use. The table that<br>follows provides a side-by-side comparison of the subject<br>device to the predicate device.                                                                                                                                                                                                                                                                                                                                                                                |
| Performance Data:                 | Test data to support the evaluation of the Straumann® PrefGel®<br>product has been included directly or by reference as follows:<br>• Clean room qualification per ISO14644-1.<br>• Secondary packaging equipment qualification consistent<br>with the ISO 11607 series of standards.<br>• Syringe filling labeling and assembly process validation.<br>• Transport validation per ISTA 2A to assure proposed<br>packaging adequately protects the product.<br>• Biocompatibility assessment per ISO 10993-1, ISO 10993-5<br>and ISO 10993-18.<br>• Ethylene oxide sterilization validation per ISO 11135 and<br>ISO 11737-2.<br>• Ethylene oxide residuals testing per ISO 10993-7.<br>• Simulated use validation to assure that clinicians will be able<br>to properly use the proposed Tip Cap. |
| Conclusions:                      | Based upon our assessment of the design and applicable<br>performance data, the subject devices have been determined to<br>be substantially equivalent to the identified predicate devices                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |

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| Feature                | Primary Predicate<br>Straumann® PrefGel®<br>(K063812)                                                                                                                            | Subject Device<br>Straumann® PrefGel®                                                                                                                                                                                                          | Equivalence<br>Discussion                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications For Use    | Straumann PrefGel is intended for topical<br>application onto exposed root surfaces during<br>periodontal surgery in order to remove the<br>smear layer.                         | Straumann PrefGel is intended for topical<br>application onto exposed root surfaces during<br>periodontal surgery in order to remove the<br>smear layer.                                                                                       | Identical Indications For Use<br>The changes to the primary (syringe),<br>secondary (blister) and tertiary (Shelf box)<br>packaging of the subject devices do not result<br>in a modification in the Indications For Use.                                                                                                                                                                                                                                                                    |
| Therapeutic Material   | 0.6 ml of edetate disodium [EDTA] 2 H2O<br>24% neutral in carboxymethyl cellulose<br>(CMC) gel                                                                                   | 0.6 ml of edetate disodium [EDTA] 2 H2O<br>24% neutral in carboxymethyl cellulose<br>(CMC) gel                                                                                                                                                 | Identical Therapeutic Material<br>The changes to the primary (syringe),<br>secondary (blister) and tertiary (Shelf box)<br>packaging of the subject devices do not affect<br>the formulation of the therapeutic material<br>contained within the primary package.<br>Because the therapeutic material is<br>unchanged, the Indications For Use have not<br>change.                                                                                                                           |
| Primary Package        | Syringe Barrel (COC, TOPAS® 6013)<br>Siliconization: (NuSil MED 361 &<br>MED1-4158)<br>Tip Cap (bromobutyl rubber)<br>Plunger (bromobutyl rubber)<br>Plunger Rod (polypropylene) | Syringe Barrel (Type I borosilicate glass)<br>Siliconization: (Dow Corning Medical<br>Fluid 360)<br>Tip Cap (West Pharma poly-isoprene<br>rubber)<br>Plunger (West Pharma elastomer)<br>Plunger Rod (polystyrene)<br>Back Stop (polypropylene) | Equivalent Primary Package<br>The subject device will now use a glass<br>syringe with compatible plunger components.<br>The predicate uses a plastic syringe with<br>compatible plunger components. In both<br>cases the product contacting materials have<br>been shown to be compatible with the<br>therapeutic material. The addition of a back<br>stop is specific to the use of the glass syringe<br>and replicates functionality that is molded into<br>the predicate plastic syringe. |
| Feature                | Primary Predicate<br>Straumann® PrefGel®<br>(K063812)                                                                                                                            | Subject Device<br>Straumann® PrefGel®                                                                                                                                                                                                          | Equivalence<br>Discussion                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Secondary Package      | Thermoformed Tray (PETG)<br>Lid Stock<br>(Medical Paper)                                                                                                                         | Thermoformed Tray (PETG)<br>Lid Stock<br>(Tyvek 1073B)                                                                                                                                                                                         | Equivalent Secondary Package<br>The blister tray is the same material; only the<br>form has changed. Both the subject and<br>predicate lid stocks are accepted for sterile<br>barrier applications. The change to Tyvek<br>1073B adds additional durability and is<br>consistent with other products produced at<br>Biora AB.                                                                                                                                                                |
| Tertiary Package       | Bleached and printed cardboard                                                                                                                                                   | Bleached and printed cardboard                                                                                                                                                                                                                 | Equivalent Tertiary Package<br>The material used for the tertiary protective<br>packaging (i.e. shelf box) is the same. The<br>package configuration has been changed to<br>accept the larger secondary blister package.<br>The packaging has been verified to adequately<br>protect the product.                                                                                                                                                                                            |
| Product Configurations | 5-Pack:<br>Five PrefGel Trays<br>Five Sterile Blunt Cannulae                                                                                                                     | 5-Pack:<br>Five PrefGel Trays<br>Five Sterile Blunt Cannulae                                                                                                                                                                                   | Identical Product Configuration<br>The changes to the primary (syringe),<br>secondary (blister) and tertiary (Shelf box)<br>packaging of the subject devices have not<br>resulted in a change to the product<br>configurations offered. The blunt cannulae<br>used with the subject devices are the same<br>ones used for the predicate devices.                                                                                                                                             |
| Sterility - Primary    | Cleanroom environment, sterilization by heat<br>(121℃) and aseptic technique.                                                                                                    | Cleanroom environment, sterilization by heat<br>(121℃) and aseptic technique.                                                                                                                                                                  | Identical Sterilization of Primary Package<br>The subject devices continue to be produced<br>in the same clean rooms, sterilizers and<br>aseptic conditions as the predicate devices<br>through the primary packaging (syringe)<br>stage.                                                                                                                                                                                                                                                    |
| Feature                | Primary Predicate<br>Straumann® PrefGel®<br>(K063812)                                                                                                                            | Subject Device<br>Straumann® PrefGel®                                                                                                                                                                                                          | Equivalence<br>Discussion                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Sterility - Secondary  | Ethylene oxide gas to a Sterility Assurance<br>Level (SAL) of 10-6                                                                                                               | Ethylene oxide gas to a Sterility Assurance<br>Level (SAL) of 10-6                                                                                                                                                                             | Identical Sterility of Secondary Package<br>The subject devices have been adopted into<br>the same EtO sterilization cycle as the<br>predicate device. This cycle has been<br>validated to an SAL of 10-6.  New clean room<br>facilities have been built to accommodate the<br>secondary packaging operations internal to<br>Biora AB-this operation is no longer out-<br>sourced.                                                                                                           |

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**Source:** [https://fda.innolitics.com/device/K162311](https://fda.innolitics.com/device/K162311)

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