K Number
K113816
Manufacturer
Date Cleared
2013-01-30

(400 days)

Product Code
Regulation Number
872.3630
Panel
Dental
Predicate For
N/A
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

GC Aadva™ Abutments -Zirconia - Bo Ac Bh Sv are dental implant abutments for use with partially or fully edentulous patients to restore chewing function by attachment to a dental implant fixture placed in the maxilla or mandible. Each abutment is accompanied by a screw in order to engage corresponding dental implant fixture.

Device Description

The "GC Aadva™ Abutments – Zirconia – Bo Ac Bh Sv" are abutments which are placed into a dental implant to provide support for a prosthetic restoration. The subject abutments are indicated for use with the following implant fixtures: Institut straumann AG Bone Level Implant NC and RC, Nobel Biocare AB NobelActive NP and RP, BioHorizons Tapered Internal Implant, and Zimmer Dental Inc. Tapered Screw-Vent. The abutment components comply with ISO 13356:2008 – Implants for Surgery – Ceramic materials based on yttria-stabilized tetragonal zirconia (Y-TZP). The abutments are mounted into the implant with a screw made of Titanium grade Ti-6Al-4V, which meets the requirements of ISO : 5832-3.

AI/ML Overview

The provided document describes the "GC Aadva™ Abutments – Zirconia – Bo Ac Bh Sv" and its substantial equivalence to predicate devices, rather than a study proving the device meets specific performance criteria in the context of an AI/human-in-the-loop system. This application is for a physical medical device (dental abutments) and thus the questions related to AI performance, expert ground truth, sample sizes for training/test sets, and adjudication methods are not applicable.

However, I can extract the acceptance criteria and the performance testing conducted for this device.


Acceptance Criteria and Device Performance for GC Aadva™ Abutments – Zirconia

1. Table of Acceptance Criteria and Reported Device Performance

Acceptance CriteriaReported Device Performance
Material Compliance
Zirconia Abutment MaterialComplies with ISO 13356:2008 – Implants for Surgery – Ceramic materials based on yttria-stabilized tetragonal zirconia (Y-TZP). Specifically: ZrO2+HfO2+Y2O3 > 99.0%, Y2O3: 4.5~5.4%, HfO2 < 5%, Al2O3 < 0.5%, Other oxides < 0.5%
Abutment Screw MaterialComplies with ISO: 5832-3 (Titanium grade Ti-6Al-4V). Specifically: Ti: Bal., Al: 5.56.75%, V: 3.54.5%, Fe < 0.3%, O < 0.2%, C < 0.08%, N < 0.05%, H < 0.015%
Mechanical Performance
Static and Fatigue Test LoadsThe implant-abutment assemblies supported adequate static and fatigue test loads when tested in accordance with FDA's Guidance Document for Dental Implants and ISO 14801.
Functional Equivalence
Allows prosthesis retentionThe device allows the prosthesis to be retained to the abutment.
Abutment screw secures abutmentThe abutment screw is intended to secure the abutment to the endosseous dental implant.
Design Limitations (Max/Min)
Collar (all types)Max. 6.0mm / Min. 2.5mm (Device performance falls within these specified ranges)
Post (all types)Max. 10.0mm / Min. 4.0mm (Device performance falls within these specified ranges)
Angulation (all types)Max. 20° / Min. 0° (Device performance falls within these specified ranges)
Length (all types)Max. 12.5mm / Min. 6.5mm (Device performance falls within these specified ranges)
Width (IN-Bo-3.3, I-Ac-3.5, IN-Bh-3.8, IN-Sv-3.5)Max. Ø 11.6mm / Min. Ø 4.1mm (Device performance falls within these specified ranges)
Width (IN-Bo-4.1, IN-Ac-4.3, IN-Bh-4.6, IN-Sv-4.5)Max. Ø 11.6mm / Min. Ø 4.9mm (Device performance falls within these specified ranges)
Head Space (all types)Max. 11.8mm / Min. 1.0mm (Device performance falls within these specified ranges)

2. Sample size used for the test set and the data provenance:

The document states that "Static and fatigue testing was conducted on the 'worst case scenario' implant-abutment combination assemblies". It does not specify the exact number of samples tested but implies a representative selection based on a "worst case" model. The data provenance is not explicitly stated as country of origin, but the testing was conducted by or for the manufacturer (GC CORPORATION, Tokyo, Japan) to comply with FDA guidance and ISO standards. It is implied to be prospective testing for regulatory submission.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

Not applicable. This is a physical device, and its performance is evaluated through engineering and materials testing (static and fatigue tests) against established international standards (ISO 13356, ISO 5832-3, ISO 14801) and FDA guidance, not by expert interpretation of data.

4. Adjudication method for the test set:

Not applicable. Data is generated through physical tests, not interpreted by experts requiring adjudication.

5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:

Not applicable. This is a physical device, not an AI or imaging diagnostic tool.

6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:

Not applicable. This is a physical device.

7. The type of ground truth used:

The ground truth used for this device is based on established international standards and regulatory guidance for medical device performance, specifically:

  • ISO 13356:2008 for ceramic materials (Y-TZP Zirconia)
  • ISO 5832-3 for titanium alloys (Ti-6Al-4V)
  • ISO 14801:2007 (or its contemporary version) for dynamic fatigue testing of endosseous dental implants
  • FDA's Guidance Document for Dental Implants

These standards define the acceptable material properties and mechanical performance thresholds.

8. The sample size for the training set:

Not applicable. This is a physical device, not an AI system that requires a training set.

9. How the ground truth for the training set was established:

Not applicable. This is a physical device.

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Section 6 – 510(k) Summary

JAN 3 0 2013

510(k) Summary for GC Aadva™ Abutments – Zirconia – Bo Ac Bh Sv

510(k) Summary

GC Aadva™ Abutments – Zirconia – Bo Ac Bh Sv

October 18, 2012 Date Prepared: .

Submitter/ContactPersonH. Carl JenkinsThe Wood Burditt GroupFDA Regulatory Counseling10 E. Scranton Avenue, Suite 201Lake Bluff, IL 60044(ph) (847) 234-7500 x 205.(fax) (847) 574-0728(email) hcjenkins@woodburditt.com
ApplicantGC America, Inc.3737 W. 127th StreetAlsip, IL 60803800.323.3386 x4042708.897.4042708.897.4031 (fax)
ManufacturerGC CORPORATION.76-1 HASUNUMA-CHO,ITABASHI-KUTOKYO 174-8585 JAPAN
Device NameGC Aadva™ Abutments - Zirconia - Bo Ac Bh Sv
Common NameEndosseous Dental Implant Abutment
ClassificationClass IIProcode NHARegulation: 21 CFR 872.3630

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Device Description

The "GC Aadva™ Abutments – Zirconia – Bo Ac Bh Sv" are abutments which are placed into a dental implant to provide support for a prosthetic restoration. The subject abutments are indicated for use with the following implant fixtures:

Abutment - Implant Compatibility Table

TypesMaterialAntirotationalFeaturesImplant - Engaged Fixture(Manufacturer)
IN-Bo-3.3mm #154Zirconia : Y-TZPInternal SquareФ3.3Bone Level Implant NC(Institut straumann AG)K062129
IN-Bo-4.1mm #155Zirconia : Y-TZPInternal SquareФ4.1, Ф4.8Bone Level Implant RC(Institut straumann AG)K062129
IN-Ac-3.5mm #156Zirconia : Y-TZPInternal HexagonФ3.5NobelActive NP(Nobel Biocare AB)K071370
IN-Ac-4.3mm #157Zirconia : Y-TZPInternal HexagonФ4.3, Ф5.0NobelActive RP(Nobel Biocare AB)K071370
IN-Bh-3.8mm #158Zirconia : Y-TZPInternal HexagonФ3.8Tapered Internal Implant(BioHorizons)K071638
IN-Bh-4.6mm #159Zirconia : Y-TZPInternal HexagonФ4.6Tapered Internal Implant(BioHorizons)K071638
IN-Sv-3.5mm #151Zirconia : Y-TZPInternal HexagonФ3.7, Ф4.1Tapered Screw-Vent(Zimmer Dental Inc.)K013227
IN Sv-4.5mm #152Zirconia : Y-TZPInternal HexagonФ4.7Tapered Screw-Vent(Zimmer Dental Inc.)K013227

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K113816

The "GC Aadva™ Abutments – Zirconia – Bo Ac Bh Sv" abutment components comply with ISO 13356:2008 – Implants for Surgery – Ceramic materials based on yttria-stabilized tetragonal zirconia (Y-TZP). The abutments are mounted into the implant with a screw made of Titanium grade Ti-6Al-4V, which meets the requirements of ISO : 5832-3. Each of these abutments have the following design limitations:

TypesCollarPostAngulationLengthWidthHead space
IN-Bo-3.3mm #154Max.6.0mmMax.10.0mmMax.20°Max.12.5mmMax. Ø 11.6mmMax.11.8mm
Min.2.5mmMin.4.0mmMin.0°Min.6.5mmMin. Ø 4.1mmMin.1.0mm
IN-Bo-4.1mm #155Max.6.0mmMax.10.0mmMax.20°Max.12.5mmMax. Ø 11.6mmMax.11.8mm
Min.2.5mmMin.4.0mmMin.0°Min.6.5mmMin. Ø 4.9mmMin.1.0mm
I-Ac-3.5mm #156Max.6.0mmMax.10.0mmMax.20°Max.12.5mmMax. Ø 11.6mmMax.11.8mm
Min.2.5mmMin.4.0mmMin.0°Min.6.5mmMin. Ø 4.1mmMin.1.0mm
IN-Ac-4.3mm #157Max.6.0mmMax.10.0mmMax.20°Max.12.5mmMax. Ø 11.6mmMax.11.8mm
Min.2.5mmMin.4.0mmMin.0°Min.6.5mmMin. Ø 4.9mmMin.1.0mm
IN-Bh-3.8mm #158Max.6.0mmMax.10.0mmMax.20°Max.12.5mmMax. Ø 11.6mmMax.11.8mm
Min.2.5mmMin.4.0mmMin.0°Min.6.5mmMin. Ø 4.1mmMin.1.0mm
IN-Bh-4.6mm #159Max.6.0mmMax.10.0mmMax.20°Max.12.5mmMax. Ø 11.6mmMax.11.8mm
Min.2.5mmMin.4.0mmMin.0°Min.6.5mmMin. Ø 4.9mmMin.1.0mm
IN-Sv-3.5mm #151Max.6.0mmMax.10.0mmMax.20°Max.12.5mmMax. Ø 11.6mmMax.11.8mm
Min.2.5mmMin.4.0mmMin.0°Min.6.5mmMin. Ø 4.1mmMin.1.0mm
IN-Sv-4.5mm #152Max.6.0mmMax.10.0mmMax.20°Max.12.5mmMax. Ø 11.6mmMax.11.8mm
Min.2.5mmMin.4.0mmMin.0°Min.6.5mmMin. Ø 4.9mmMin.1.0mm

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Intended Use:

The "GC Aadva™ Abutments – Zirconia – Bo Ac Bh Sv" is intended for use with an endossous dental implant to support a prosthetic device in a partially or completely endentulous patient. It is intended for use to support a tooth prosthesis, in the mandible or maxilla. The abutment screw is intended to secure the abutment to the endosseous dental implant.

Indications for use:

Indications for Use: GC Aadva™ Abutments – Zirconia – Bo Ac Bh Sv are dental implant abutments for use with partially or fully edentulous patients to restore chewing function by attachment to a dental implant fixture placed in the maxilla or mandible. Each abutment is accompanied by a screw in order to engage corresponding dental implant fixture.

Abutment - Implant Compatibility Table
--------------------------------------------
TypesMaterialAntirotationalFeaturesImplant - Engaged Fixture(Manufacturer)
IN-Bo-3.3mm #154Zirconia : Y-TZPInternal SquareФ3.3Bone Level Implant NC(Institut straumann AG)K062129
IN-Bo-4.1mm #155Zirconia : Y-TZPInternal SquareФ4.1, Ф4.8Bone Level Implant RC(Institut straumann AG)K062129
IN-Ac-3.5mm #156Zirconia : Y-TZPInternal HexagonФ3.5NobelActive NP(Nobel Biocare AB)K071370

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IN-Ac-4.3mm #157Zirconia : Y-TZPInternal HexagonΦ4.3, Φ5.0NobelActive RP(Nobel Biocare AB)K071370
IN-Bh-3.8mm #158Zirconia : Y-TZPInternal HexagonΦ3.8Tapered Internal Implant(BioHorizons)K071638
IN-Bh-4.6mm #159Zirconia : Y-TZPInternal HexagonΦ4.6Tapered Internal Implant(BioHorizons)K071638
IN-Sv-3.5mm #151Zirconia : Y-TZPInternal HexagonФ3.7, Φ4.1Tapered Screw-Vent(Zimmer Dental Inc.)K013227
IN Sv-4.5mm #152Zirconia : Y-TZPInternal HexagonΦ4.7Tapered Screw-Vent(Zimmer Dental Inc.)K013227

Prescription Use Only.

Substantial Equivalence:

The applicant device is substantially equivalent to the predicate devices in its intended use, indications for use, and design, as described below:

Predicate devices list
ProductManufacturerK Number
AtlantisAbutmentStraumann Bone LevelAstra Tech Inc.25 First Street Cambridge, MassachusettsK083871

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. . . . . - - -

: 上

·

:

02141 USA
NobelActive Zirconia AbutmentNobel Biocare USA, LLC.22715 Savi Ranch Parkway, Yorba LondaCA 92887 USAK072129
GC Aadva AbutmentGC Corporation76-1 Hasunuma-Cho, Itabashi-KuTokyo, JapanK072100
Atlantis Abutment in Zirconia forBioHorizons ImplantAtlantis Components Inc.25 First Street Cambridge, Massachusetts02141 USAK073540
Atlantis Abutment for BioHorizonsImplantAtlantis Components Inc.25 First Street Cambridge, Massachusetts02141 USAK073258
ATLANTIS ABUTMENT FORZIMMER INTERFACEAstra Tech Inc.25 First Street Cambridge, Massachusetts02141 USAK053373

:

and the control of the count

ComponentMaterialPredicate devices using same materials specifiedhere
BlockZirconia : Y-TZPAtlantis Straumann Bone Level Abutment
ISO : 13356(K083871)
ZrO2+HfO2+Y2O3 > 99.0Y2O3 : 4.5~5.4NobelActive Zirconia Abutment (K072129)
Hf2O3<5GC AADVA ABUTMENT (K072100)

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Al2O3<0.5Other oxides<0.5Atlantis abutment in zirconia for 3i certain interface(K063734)
Atlantis Abutment in Zirconia for BioHorizonsImplant(K073540)
ATLANTIS ABUTMENT FOR ZIMMERINTERFACE(K053373)
Atlantis Straumann Bone Level Abutment(K083871)
ScrewTi-6Al-4VISO : 5832-3NobelActive Internal Connection (K071370)
Ti : Bal.Al : 5.5~6.75GC AADVA ABUTMENT (K072100)
V : 3.5~4.5Fe<0.3O<0.2Atlantis Abutment in Zirconia for BioHorizonsImplant (K073540)
C<0.08N<0.05H<0.015Atlantis Abutment for BioHorizons Implant(K073258)
ATLANTIS ABUTMENT FOR ZIMMERINTERFACE(K053373)

.

1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 - 1999 -

Technological CharacteristicApplicant DevicePredicate Devices
MaterialZirconia : Y-TZPISO : 13356Zirconia : Y-TZPISO : 13356
Performance CharacteristicsAllows the prosthesis to beretained to the abutment;abutment screw is intended toAllows the prosthesis to beretained to the abutment;abutment screw is intended to

:

.

{7}------------------------------------------------

secure the abutment to theendosseous dental implant.secure the abutment to theendosseous dental implant.
Intended UseIntended for use with anendosseous dental implant tosupport a prosthetic device ina partially or fully endentulouspatient to restore chewingfunction. Intended to beattached to a dental implantfixture placed in the maxilla ormandible.Intended for use with anendosseous dental implant tosupport a prosthetic device ina partially or fully endentulouspatient to restore chewingfunction. Intended to beattached to a dental implantfixture placed in the maxilla ormandible.

Summary of Non-Clinical Performance Testing:

Static and fatigue testing was conducted on the "worst case scenario" implant-abutment combination assemblies in accordance with FDA's Guidance Document for Dental Implants and ISO 14801. Test results demonstrated that the "GC Aadva™ Abutments - Zirconia - Bo Ac Bh Sv" are compatible with the referenced implant fixtures and the implant-abutment assemblies support adequate static and fatigue test loads. Performance testing demonstrates that the device performs as intended and is as safe and effective as the cited predicates.

Substantial Equivalence Conclusion Statement:

Based on noted similarities and comparative traits in the indications for use, manufacturing materials, design and performance characteristics, and the fact that the applicant device and the predicate devices have demonstrated acceptable static and fatigue test loads during performance testing conducted in accordance with FDA's Guidance Document for Dental Implants and ISO 14801, the "GC Aadva™ Abutments - Zirconia - Bo Ac Bh Sv" is substantially equivalent to the following predicate devices:

ProductManufacturerK Number
Atlantis Straumann Bone LevelAbutmentAstra Tech Inc.25 First Street Cambridge, Massachusetts02141 USAK083871
NobelActive Zirconia AbutmentNobel Biocare USA, LLC.22715 Savi Ranch Parkway, Yorba LondaCA 92887 USAK072129
GC Aadva AbutmentGC Corporation76-1 Hasunuma-Cho, Itabashi-KuTokyo, JapanK072100

{8}------------------------------------------------

K113816

.

.

:

. . . . .

and the same of

Atlantis Abutment in Zirconia forBioHorizons ImplantAtlantis Components Inc.25 First Street Cambridge, Massachusetts02141 USAK073540
Atlantis Abutment for BioHorizonsImplantAtlantis Components Inc.25 First Street Cambridge, Massachusetts02141 USAK073258
ATLANTIS ABUTMENT FORZIMMER INTERFACEAstra Tech Inc.25 First Street Cambridge, Massachusetts02141 USAK053373

. . . . . . . .

. . . . . . .

and the control control control control controllers.

.

.

:

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Image /page/9/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo is a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES-USA" around the perimeter. Inside the circle is a stylized symbol that resembles a person embracing a wave or flame. The symbol is black, and the text is in a simple, sans-serif font.

Public Health Service

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

January 30, 2013

GC America, Incorporated C/O Mr. Carl H. Jenkins The Wood Burditt Group 10 East Scranton Avenue, Suite 201 LAKE BLUFF IL 60044

Re: K113816

Trade/Device Name: GC AadvaTM Abutments - Zirconia - Bo Ac Bh Sv Regulation Number: 21 CFR 872.3630 Regulation Name: Endosseous Dental Implant Abutment Regulatory Class: II Product Code: NHA Dated: January 17, 2013 Received: January 25, 2013

Dear Mr. Jenkins:

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.

{10}------------------------------------------------

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to

http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely yours,

Anthony D. Watson, B.S., M.S., M.B.A. 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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Section 5 - Indications for Use Statement

Indications for Use

510(k) Number (if known): K113816

Device Name: GC Aadva™ Abutments - Zirconia - Bo Ac Bh Sv

Indications for Use: GC Aadva™ Abutments -Zirconia - Bo Ac Bh Sv are dental implant abutments for use with partially or fully edentulous patients to restore chewing function by attachment to a dental implant fixture placed in the maxilla or mandible. Each abutment is accompanied by a screw in order to engage corresponding dental implant fixture.

(Cont'd on next page)

Prescription Use X (Part 21 CFR 801 Subpart D)

AND/OR

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

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

Susan Runner DDS, MA2013.01.3008:08:47 -05'00'
(Division Sign-Off)Division of Anesthesiology, General HospitalInfection Control, Dental Devices510(k) Number:K113816

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. "

Indications for Use

510(k) Number (if known): K113816

Device Name: GC Aadva™ Abutments - Zirconia - Bo Ac Bh Sv

(Cont'd from previous page)

Abutment - Implant Compatibility Table

TypesMaterialAntirotationalFeaturesImplant - Engaged Fixture(Manufacturer)
IN-Bo-3.3mm #154Zirconia : Y-TZPInternal SquareΦ3.3Bone Level Implant NC(Institut straumann AG)K062129
IN-Bo-4.1mm #155Zirconia : Y-TZPInternal SquareΦ4.1, Φ4.8Bone Level Implant RC(Institut straumann AG)K062129
IN-Ac-3.5mm #156Zirconia : Y-TZPInternal HexagonΦ3.5NobelActive NP(Nobel Biocare AB)K071370
IN-Ac-4.3mm #157Zirconia : Y-TZPInternal HexagonΦ4.3, Φ5.0NobelActive RP(Nobel Biocare AB)K071370
IN-Bh-3.8mm #158Zirconia : Y-TZPInternal HexagonΦ3.8Tapered Internal Implant(BioHorizons)K071638
IN-Bh-4.6mm #159Zirconia : Y-TZPInternal HexagonΦ4.6Tapered Internal Implant(BioHorizons)K071638
IN-Sv-3.5mm #151Zirconia : Y-TZPInternal HexagonΦ3.7, Φ4.1Tapered Screw-Vent(Zimmer Dental Inc.)K013227
IN Sv-4.5mm #152Zirconia : Y-TZPInternal HexagonΦ4.7Tapered Screw-Vent(Zimmer Dental Inc.)K013227

§ 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.)