K Number
K170354
Device Name
Straumann Variobase Abutments
Date Cleared
2017-06-07

(121 days)

Product Code
Regulation Number
872.3630
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Straumann® Variobase® Abutment is a titanium base placed onto Straumann dental implants to provide support for customized prosthetic restorations. Straumann® Variobase® Abutments are indicated for screwretained single tooth or cement-retained single tooth and bridge restorations. All digitally designed copings and/or crowns for use with the Straumann® Variobase® Abutment system are intended to be sent to Straumann for manufacture at a validated milling center.
Device Description
The purpose of the subject submission is to add the previously cleared Straumann n!ce glass ceramic material (K160262) as a cleared material suitable for fabrication of the coping or crown that, when bonded to the previously cleared Variobase abutment base (K142890), forms a finished dental prosthesis. The Straumann Variobase Abutments are pre-manufactured (stock) abutments, sometimes referred to as "Ti-bases". Straumann Variobase Abutments are available to fit Straumann dental implant platforms NNC (Narrow Neck CrossFit®), RN (Regular Neck), WN (Wide Neck), NC (Narrow CrossFit), and RC (Regular CrossFit). A dental laboratory technician would design the corresponding coping and/or crown (the second component of the Variobase two-piece abutment) and/or prosthetic restoration in the dental laboratory via their preferred workflow. The coping and/or crown would be manufactured via traditional laboratory methods for pressing or casting, or via validated Straumann milling.
More Information

No
The summary describes a dental abutment and the materials used for the prosthetic restoration. There is no mention of AI or ML in the intended use, device description, or performance studies. The software validation mentioned is for general software principles, not specifically for AI/ML.

No

The device is described as a titanium base placed onto dental implants to provide support for customized prosthetic restorations, indicating it serves a mechanical and structural purpose rather than directly treating a disease or condition.

No

This device is described as a titanium base placed onto dental implants to provide support for customized prosthetic restorations, making it a component of a dental prosthesis, not a diagnostic tool.

No

The device description clearly states it is a physical abutment (titanium base) and a coping/crown made of glass ceramic, which are hardware components. While software is mentioned for design and validation, the device itself is not solely software.

Based on the provided text, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use clearly states that the device is a dental abutment placed onto dental implants to support prosthetic restorations. This is a mechanical device used within the body, not a device used to examine specimens derived from the human body to provide information for diagnosis, monitoring, or compatibility testing.
  • Device Description: The description reinforces that it's a physical component (titanium base) used in dental prosthetics.
  • Lack of IVD Characteristics: There is no mention of analyzing biological samples, detecting analytes, or providing diagnostic information. The performance studies focus on mechanical properties, sterilization, and biocompatibility, which are typical for implantable or surgically placed devices, not IVDs.

Therefore, the Straumann® Variobase® Abutment is a dental prosthetic component, not an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

The Straumann® Variobase® Abutment is a titanium base placed onto Straumann dental implants to provide support for customized prosthetic restorations. Straumann® Variobase® Abutments are indicated for screwretained single tooth or cement-retained single tooth and bridge restorations. All digitally designed copings and/or crowns for use with the Straumann® Variobase® Abutment system are intended to be sent to Straumann for manufacture at a validated milling center.

Product codes (comma separated list FDA assigned to the subject device)

NHA

Device Description

The purpose of the subject submission is to add the previously cleared Straumann n!ce glass ceramic material (K160262) as a cleared material suitable for fabrication of the coping or crown that, when bonded to the previously cleared Variobase abutment base (K142890), forms a finished dental prosthesis.
The Straumann Variobase Abutments are pre-manufactured (stock) abutments, sometimes referred to as "Ti-bases". Straumann Variobase Abutments are available to fit Straumann dental implant platforms NNC (Narrow Neck CrossFit®), RN (Regular Neck), WN (Wide Neck), NC (Narrow CrossFit), and RC (Regular CrossFit). A dental laboratory technician would design the corresponding coping and/or crown (the second component of the Variobase two-piece abutment) and/or prosthetic restoration in the dental laboratory via their preferred workflow. The coping and/or crown would be manufactured via traditional laboratory methods for pressing or casting, or via validated Straumann milling.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Dental implants

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Dental laboratory technician

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Bench testing was performed to evaluate the performance of the proposed Straumann® Variobase™ Abutments. Dynamic fatigue tests were conducted in according to the FDA guidance document "Guidance for Industry and FDA Staff – Class II Special Controls Guidance Document: Rootform Endosseous Dental Implants and Endosseous Dental Abutments". Steam sterilization validation per FDA guidance entitled Reprocessing Medical Devices in Health Care Settings: Validation Methods and Labeling dated March 17, 2015 and the ISO 17665 series standards. Biocompatibility of the Straumann n!ce Glass Ceramic was established per K160262 based upon a cytotoxicity study per ISO 10993-5 and an inorganic extractables/leachables study per ISO 10993-18. Software validation per FDA guidance document: General Principles of Software Validation; Final Guidance for Industry and FDA Staff, issued on: January 11, 2002 and per IEC 62304. No animal or human clinical studies were conducted.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K142890

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

K160262, K120822

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 872.3630 Endosseous dental implant abutment.

(a)
Identification. An endosseous dental implant abutment is a premanufactured prosthetic component directly connected to the endosseous dental implant and is intended for use as an aid in prosthetic rehabilitation.(b)
Classification. Class II (special controls). The guidance document entitled “Class II Special Controls Guidance Document: Root-Form Endosseous Dental Implants and Endosseous Dental Implant Abutments” will serve as the special control. (See § 872.1(e) for the availability of this guidance document.)

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Image /page/0/Picture/2 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the logo is an abstract symbol that resembles a stylized human figure.

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

June 7, 2017

Institut Straumann AG % Jennifer Jackson Director of Regulatory Affairs and Ouality Straumann USA. LLC 60 Minuteman Road Andover, Massachusetts 01810

Re: K170354

Trade/Device Name: Straumann® Variobase® Abutments Regulation Number: 21 CFR 872.3630 Regulation Name: Endosseous Dental Implant Abutment Regulatory Class: Class II Product Code: NHA Dated: May 8, 2017 Received: May 9, 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 with all the Act's requirements, including, but not limited to: registration and listing (21 CFR

1

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.

Lori A. Wiggins -S6

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)

K170354

Device Name

Straumann® Variobase® Abutments

Indications for Use (Describe)

The Straumann® Variobase® Abutment is a titanium base placed onto Straumann dental implants to provide support for customized prosthetic restorations. Straumann® Variobase® Abutments are indicated for screwretained single tooth or cement-retained single tooth and bridge restorations. All digitally designed copings and/or crowns for use with the Straumann® Variobase® Abutment system are intended to be sent to Straumann for manufacture at a validated milling center.

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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5.510(k) SummaryK170354
Submitter:Straumann USA, LLC (on behalf of Institut Straumann AG)
60 Minuteman Road
Andover, MA 01810
Contact Person:Jennifer M. Jackson, MS
Director of Regulatory Affairs and Quality
+1 (978) 747-2509
Prepared By &
Secondary Contact:Christopher Klaczyk
Head of Regulatory Affairs & Compliance
Institut Straumann AG
+41 61 965 1260
Date Prepared:June 01, 2017
Product Code(s):NHA (21 CFR 872.3630)
Device Class:II
(21 CFR 872.3630)
Classification Panel:Dental
Classification Name:Endosseous dental implant abutment (21 CFR 872.3630)
Common NameEndosseous dental implant abutment
Proprietary Name:Straumann® Variobase® Abutments
Predicate Device(s):K142890, Straumann Variobase Abutments (Institut
Straumann)
Reference Device(s):K160262, n!ce Glass Ceramic Blocks (Institut Straumann)
K120822, CARES Variobase Abutments (Institut Straumann)
Device Description:The purpose of the subject submission is to add the previously
cleared Straumann n!ce glass ceramic material (K160262) as a
cleared material suitable for fabrication of the coping or crown
that, when bonded to the previously cleared Variobase
abutment base (K142890), forms a finished dental prosthesis.
The Straumann Variobase Abutments are pre-manufactured
(stock) abutments, sometimes referred to as "Ti-bases".
Straumann Variobase Abutments are available to fit Straumann
dental implant platforms NNC (Narrow Neck CrossFit®), RN
(Regular Neck), WN (Wide Neck), NC (Narrow CrossFit), and

4

RC (Regular CrossFit). A dental laboratory technician would design the corresponding coping and/or crown (the second component of the Variobase two-piece abutment) and/or prosthetic restoration in the dental laboratory via their preferred workflow. The coping and/or crown would be manufactured via traditional laboratory methods for pressing or casting, or via validated Straumann milling.

Picture of Device

Image /page/4/Figure/3 description: The image shows two dental implant models with labels. The model on the left is a cross-section of a dental implant with the "Basal Screw", "Prosthetic restoration (Full contour crown)", and "Straumann® Variobase Abutment" labeled with green arrows. The model on the right shows the parts of the dental implant separated from each other.

Indications For Use: The Straumann Variobase Abutment is a titanium base placed onto Straumann dental implants to provide support for customized prosthetic restorations. Straumann Variobase Abutments are indicated for screw-retained single tooth or cement-retained single tooth and bridge restorations. All digitally designed copings and/or crowns for use with the Straumann Variobase Abutment system are intended to be sent to Straumann for manufacture at a validated milling center.

  • Materials: • Straumann Variobase Abutments: Titanium-6 aluminum-7 niobium alloy (Ti-6Al-7Nb, TAN). The Ti-base components of the Straumann® Variobase™ Abutments are identical to the Ti-base components of the Straumann predicates (K142890).
    • Straumann Basal Screw: Titanium-6 aluminum-7 niobium alloy (Ti-6Al-7Nb, TAN). The basal screw components of the Straumann® Variobase™ Abutments are identical to the basal screw components of the Straumann predicates (K142890).
    • · Coping or Crown: n!ce Glass Ceramic (lithium disilicate reinforced lithium aluminosilicate glass-ceramic). The material is identical to the material of the Straumann reference devices (K160262).

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| Technological
Characteristics: | A comparison of the relevant technological characteristics
between the subject and primary predicate devices is provided
in the table that follows. |
|-----------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Performance Data: | The material used in the manufacture of Straumann Variobase
Abutments is a titanium-aluminum-niobium alloy which meets
the requirements of ISO 5832-11. Bench testing was performed
to evaluate the performance of the proposed Straumann®
Variobase™ Abutments.
Dynamic fatigue tests were conducted in according to the
FDA guidance document "Guidance for Industry and FDA
Staff – Class II Special Controls Guidance Document: Root-
form Endosseous Dental Implants and Endosseous Dental
Abutments". Steam sterilization validation per FDA guidance entitled
Reprocessing Medical Devices in Health Care Settings:
Validation Methods and Labeling dated March 17, 2015 and
the ISO 17665 series standards. Biocompatibility of the Straumann n!ce Glass Ceramic was
established per K160262 based upon a cytotoxicity study per
ISO 10993-5 and an inorganic extractables/leachables study
per ISO 10993-18. Software validation per FDA guidance document: General
Principles of Software Validation; Final Guidance for
Industry and FDA Staff, issued on: January 11, 2002 and per
IEC 62304. No animal or human clinical studies were conducted. |
| Conclusions: | Based upon our assessment of the design and applicable
performance data, the subject devices have been determined to
be substantially equivalent to the identified predicate devices. |

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| Feature | SUBJECT Devices
Straumann Variobase Abutments | Primary PREDICATE Device
Straumann Variobase Abutments
(K142890) | Equivalence Discussion |
|---------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for
Use | The Straumann® Variobase™ Abutment is a
titanium base placed onto Straumann dental
implants to provide support for customized
prosthetic restorations. Straumann®
Variobase™ Abutments are indicated for
screw-retained single tooth or cement-
retained single tooth and bridge
restorations. | The Straumann® Variobase™ Abutment is a
titanium base placed onto Straumann dental
implants to provide support for customized
prosthetic restorations. Straumann®
Variobase™ Abutments are indicated for
screw-retained single tooth or cement-
retained single tooth and bridge
restorations. | Identical |
| Ti-base
Material | Titanium-Aluminum-Niobium alloy
(Ti-6Al-7Nb) | Titanium-Aluminum-Niobium alloy
(Ti-6Al-7Nb) | Identical |
| Abutment
Diameter | 3.8 – 7.0 mm | 3.8 – 7.0 mm | Identical |
| Abutment Height | 3.5 – 4.5 mm | 3.5 – 4.5 mm | Identical |
| Max. Angulation | 30° | 30° | Identical |
| Coping/ Crown
Material | Straumann n!ce Glass Ceramic is being
added to the previously cleared
coping/crown materials | Traditional Workflow:
Type 4 Metals (ISO 22674)
IPS e.max® Press Ceramic
Digital Workflow:
polycon® ae (temporary)
zerion® (permanent)
IPS e.max® CAD Ceramic (permanent)
coron® (permanent) | Equivalent
The digital workflow is being expanded to
add an additional material, Straumann n!ce
glass ceramic.
Straumann n!ce glass ceramic was shown to
be substantially equivalent to IPS e.max
CAD per K160262 cleared on September
16, 2016. |
| Design Workflow | Wax-up or CAD | Wax-up or CAD | Identical |
| Feature | SUBJECT Devices
Straumann Variobase Abutments | Primary PREDICATE Device
Straumann Variobase Abutments
(K142890) | Equivalence Discussion |
| Manufacturing
Workflow | Straumann Milling | Traditional casting or pressing
Or
Straumann Milling | Identical |
| Mode of
Attachment | Screw-retained or cement retained | Screw-retained or cement retained | Identical |
| Reusable | No | No | Identical |

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