Straumann 4 mm Short Implants
K202942 · Straumann USA, LLC · DZE · Feb 8, 2021 · Dental
Device Facts
| Record ID | K202942 |
| Device Name | Straumann 4 mm Short Implants |
| Applicant | Straumann USA, LLC |
| Product Code | DZE · Dental |
| Decision Date | Feb 8, 2021 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 872.3640 |
| Device Class | Class 2 |
| Attributes | Therapeutic |
Intended Use
Straumann® 4 mm Short Implants are intended for oral endosteal implantation in the jaw and for the functional oral rehabilitation of edentulous and partially edentulous patients.
Device Story
Straumann® 4 mm Short Implants are endosseous dental implants designed for patients with limited vertical bone height. Fabricated from Roxolid® (titanium-zirconium alloy) with a hydrophilic SLActive® surface, these implants are surgically placed into the jawbone by dental professionals. The device acts as an anchor for prosthetic restorations, including fixed partial dentures or removable reconstructions. The system includes implants, abutments, and surgical instruments. By providing a stable foundation in atrophic bone, the device enables functional oral rehabilitation. Clinical success is monitored via survival rates and alveolar bone loss assessments. The device is intended for use in clinical dental settings.
Clinical Evidence
Evidence includes a review of published clinical literature (57 cases, 118 implants, 12-27 months follow-up) and post-market complaint/vigilance data (54,879 total sales). Survival rates were ≥90%, comparable to 6 mm implants (93.7%). Complaint rates (4.20%-4.47%) and early loss rates (3.41%-3.84%) were comparable to the primary predicate (3.00%-4.07% and 2.27%-2.57%, respectively). Bench testing included dynamic fatigue testing per modified ISO 14801 and endosseous surface area evaluation.
Technological Characteristics
Material: Roxolid® (Ti-Zr alloy). Surface: SLActive® (large-grit sandblasted, acid-etched, chemically activated). Design: Cylindrical, 4 mm length, Ø4.1 mm or Ø4.8 mm diameters. Connection: 8° cone, internal octagon, 45° shoulder. Sterilization: Gamma irradiation (min 25 kGy), SAL 10^-6. Biocompatibility: ISO 10993-1 compliant. Connectivity: Compatible with existing Straumann abutments.
Indications for Use
Indicated for fixed or removable reconstruction in adult patients with moderate to severely atrophic jawbone and adequate bone quality for primary stability, where limited vertical bone height precludes longer implants. Recommended healing time: 10-12 weeks. Specifically for: fixed partial dentures/splinted units (one implant per unit); pontic cases with at least one longer implant; fully edentulous cases with at least one 4 mm implant combined with 2 longer implants in the anterior region and at least four total implants.
Regulatory Classification
Identification
An endosseous dental implant is a prescription device made of a material such as titanium or titanium alloy that is intended to be surgically placed in the bone of the upper or lower jaw arches to provide support for prosthetic devices, such as artificial teeth, in order to restore a patient's chewing function.
Special Controls
*Classification.* (1) Class II (special controls). The device is classified as class II if it is a root-form endosseous dental implant. The root-form endosseous dental implant is characterized by four geometrically distinct types: Basket, screw, solid cylinder, and hollow cylinder. 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.)(2)
*Classification.* Class II (special controls). The device is classified as class II if it is a blade-form endosseous dental implant. The special controls for this device are:(i) The design characteristics of the device must ensure that the geometry and material composition are consistent with the intended use;
(ii) Mechanical performance (fatigue) testing under simulated physiological conditions to demonstrate maximum load (endurance limit) when the device is subjected to compressive and shear loads;
(iii) Corrosion testing under simulated physiological conditions to demonstrate corrosion potential of each metal or alloy, couple potential for an assembled dissimilar metal implant system, and corrosion rate for an assembled dissimilar metal implant system;
(iv) The device must be demonstrated to be biocompatible;
(v) Sterility testing must demonstrate the sterility of the device;
(vi) Performance testing to evaluate the compatibility of the device in a magnetic resonance (MR) environment;
(vii) Labeling must include a clear description of the technological features, how the device should be used in patients, detailed surgical protocol and restoration procedures, relevant precautions and warnings based on the clinical use of the device, and qualifications and training requirements for device users including technicians and clinicians;
(viii) Patient labeling must contain a description of how the device works, how the device is placed, how the patient needs to care for the implant, possible adverse events and how to report any complications; and
(ix) Documented clinical experience must demonstrate safe and effective use and capture any adverse events observed during clinical use.
Predicate Devices
- Straumann Dental Implant System (K130222)
Reference Devices
- Bicon Implants with a 2.5 mm Internal Connection (K092035)
- Neodent Implant System (K123022)
- MRI Compatibility for Existing Straumann Dental Implant Systems (K190662)
Related Devices
- K150938 — Straumann® Dental Implant System ¿ Roxolid® SLA Implants · Straumann USA, LLC · Jul 24, 2015
- K101225 — PROMIMIC DENTAL IMPLANT, 3.75 MM, LENGTH 8.5 MM MODEL 03-1001, PROMIMIC DENTAL IMPLANT, 3.75 MM, LENGTH 10 MM MODEL 03-1 · Promimic AB · Jan 25, 2011
- K140878 — STRAUMANN BONE LEVEL TAPERED IMPLANT · Straumann USA, LLC · Aug 20, 2014
- K171784 — Straumann Dental Implant System · Straumann USA, LLC · Jan 19, 2018
- K153758 — Straumann Bone Level Tapered Implants · Institut Straumann AG · Mar 23, 2016
Submission Summary (Full Text)
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo is in blue and includes the letters "FDA" in a square and the words "U.S. FOOD & DRUG ADMINISTRATION".
Straumann USA, LLC Jennifer Jackson Director, Regulatory Affairs 60 Minuteman Road Andover, Massachusetts 01801
Re: K202942
Trade/Device Name: Straumann® 4 mm Short Implants Regulation Number: 21 CFR 872.3640 Regulation Name: Endosseous Dental Implant Regulatory Class: Class II Product Code: DZE Dated: November 9, 2020 Received: November 10, 2020
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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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 of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
Andrew Steen Assistant Director DHT1B: Division of Dental Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental Devices Office of Product Evaluation and Ouality Center for Devices and Radiological Health
Enclosure
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## DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration
## Indications for Use
510(k) Number (if known)
K202942
Device Name
Straumann® 4 mm Short Implants
Indications for Use (Describe)
Straumann® 4 mm Short Implants are indicated for fixed or removable reconstruction in situations of moderate to severely atrophic jawbone and with adequate bone quality that allows primary stability after implant insertion, where a longer implant cannot be placed due to limited vertical bone height. The before loading is between 10 to 12 weeks.
The 4 mm Short Implants are specifically recommended for:
- . Fixed partial dentures/splinted units (one implant per unit)
- Pontic cases in combination with at least one longer implant
- Fully edentulous cases with at least one 4 mm Short Implant in combination with 2 longer implants in the ● anterior region and at least four total implants
Type of Use (Select one or both, as applicable) 図Prescription Use (Part 21 CFR 801 Subpart D)
□Over-The-Counter Use (21 CFR 801 Subpart C)
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FORM FDA 3881 (7/17)
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# Straumann® 4 mm Short Implants
510(k) Summary
### 5 510(k) Summary
### 5.1 Submitter's Contact Information
| 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>Phone Number: +1 978 747-2509<br>Fax Number: +1 978 747-0023 |
| Prepared By &<br>Alternate Contact: | Chanrasmey White, MS<br>Regulatory Affairs Specialist<br>Straumann, USA, LLC<br>Phone Number: +1 978 747-2516<br>Fax Number: +1 978 747-0023 |
| Date of Submission: | February 8. 2021 |
### 5.2 Name of the Device
| Trade Names: | Straumann® 4 mm Short Implants |
|------------------------|--------------------------------|
| Common Name: | Endosseous Dental Implant |
| Classification Name: | Endosseous Dental Implant |
| Regulation Number: | §872.3640 |
| Device Classification: | II |
| Product Code(s): | DZE |
| Classification Panel: | Dental |
### Predicate Device(s) 5.3
Primary Predicate:
- K130222, Straumann Dental Implant System .
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# Straumann® 4 mm Short Implants
510(k) Summary
Reference Devices:
- K092035, Bicon Implants with a 2.5 mm Internal Connection .
- . K123022, Neodent Implant System
- K190662, MRI Compatibility for Existing Straumann Dental Implant Systems .
## 5.4 Device Description
The Straumann® Dental Implant System is an integrated system of endosseous dental implants with corresponding abutments, healing abutments, closure screws and surgical and prosthetic parts and instruments. Straumann® Roxolid® dental implants are solid screw implants comprised of a titanium-zirconium alloy with the hydrophilic SLActive® bone anchorage surface that is large-grit sandblasted and acid-etched. In addition, SLActive® is in a chemically activated state, which is preserved by storage in a NaCI solution.
This premarket notification serves to add new dental implants to the Straumann Dental Implant System portfolio that are 4 mm in length. Other than the implant length, the subject devices are physically identical to the primary predicate tissue level devices except for the implant thread which is identical to the bone level primary predicate devices cleared under K130222.
The Straumann® 4 mm Short Implants are manufactured from the Roxolid® material with the SLActive® surface and are available in Ø4.1 mm with a Regular Neck (RN) Tissue Level implant/abutment interface and in Ø4.8 mm with an RN or Wide Neck (WN) Tissue Level implant/abutment interface.
### 5.5 Intended Use
Straumann® 4 mm Short Implants are intended for oral endosteal implantation in the jaw and for the functional oral rehabilitation of edentulous and partially edentulous patients.
### 5.6 Indications for Use
Straumann® 4 mm Short Implants are indicated for fixed or removable reconstruction in situations of moderate to severely atrophic jawbone and with adequate bone quality that allows primary stability after implant insertion, where a longer implant cannot be placed due to limited vertical bone height. The recommended healing time before loading is between 10 to 12 weeks. The 4 mm Short Implants are specifically recommended for:
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# Straumann® 4 mm Short Implants
## 510(k) Summary
- Fixed partial dentures/splinted units (one implant per unit) .
- . Pontic cases in combination with at least one longer implant
- Fully edentulous cases with at least one 4 mm Short Implant in combination with 2 . longer implants in the anterior region and at least four total implants
## 5.7 Technological Characteristics
There are no changes to the materials, surface treatments, fundamental operating principles, or sterilization processes or procedures as a result of the proposed changes. The subject devices have a new implant length of 4 mm. The technological characteristics of the subject device are compared to the primary predicate and reference devices in Table 1.
Table 1 addresses the similarities and differences between the subject and predicate device. The subject device has more restrictive Indications for Use compared to the primary predicate. The differences in the Indications for Use are to address the short length of the implant and are narrower than the primary predicate device. Performance testing and clinical data provided demonstrates equivalency in product performance.
No new surgical instruments are being introduced. No new secondary components (i.e., abutments, closure screws, etc.) are being introduced as the currently cleared portfolio is compatible with the subject devices.
The reference device K190662 is included for reference to the MRI compatibility.
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# Straumann® 4 mm Short Implants
## 510(k) Summary
| FEATURE | SUBJECT DEVICE | PRIMARY PREDICATE<br>DEVICE | REFERENCE DEVICE | REFERENCE DEVICE |
|------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| K Number | Straumann® 4 mm Short<br>Implants<br>(K202942) | Straumann® Dental Implant<br>System<br>(K130222) | Neodent Implant System<br>(K123022) | Bicon Implants with 2.5 mm<br>Internal Connection<br>(K092035) |
| Indications for<br>Use | Straumann® 4 mm Short Implants<br>are indicated for fixed or<br>removable reconstruction in<br>situations of moderate to<br>severely atrophic jawbone and<br>with adequate bone quality that<br>allows primary stability after<br>implant insertion, where a longer<br>implant cannot be placed due to<br>limited vertical bone height. The<br>recommended healing time<br>before loading is between 10 to<br>12 weeks.<br>The 4 mm Short Implants are<br>specifically recommended for:<br>● Fixed partial<br>dentures/splinted units<br>(one implant per unit)<br>● Pontic cases in<br>combination with at<br>least one longer implant<br>● Fully edentulous cases<br>with at least one 4 mm<br>Short Implant in<br>combination with 2<br>longer implants in the<br>anterior region and at<br>least four total implants | Straumann® dental implants are<br>indicated for oral endosteal<br>implantation in the upper and<br>lower jaw arches for the<br>functional and aesthetic oral<br>rehabilitation of edentulous and<br>partially dentate patients.<br>Straumann® dental implants are<br>also indicated for immediate or<br>early implantation following<br>extraction or loss of natural<br>teeth. Implants can be placed<br>with immediate function on<br>single-tooth and/or multiple<br>tooth applications when good<br>primary stability is achieved and<br>with appropriate occlusal<br>loading, to restore chewing<br>function. The prosthetic<br>restorations used are single<br>crowns, bridges and partial or<br>full dentures, which are<br>connected to the implants by the<br>corresponding components<br>(abutments). | The Neodent Implant System is<br>intended to be surgically placed<br>in the bone of the upper or lower<br>jaw to provide support for<br>prosthetic devices such as<br>artificial teeth, to restore<br>chewing function. It may be<br>used with single-stage or two-<br>stage procedures, for single or<br>multiple unit restorations, and<br>may be loaded immediately<br>when good primary stability is<br>achieved and with appropriate<br>occlusal loading. Titamax WS<br>implant is indicated for a<br>delayed loading protocol. The<br>Facility implant is indicated for<br>replacement of maxillary lateral<br>incisors, mandibular incisors or<br>retention of overdentures. | The Bicon implant is designed<br>for use in edentulous sites in the<br>mandible or maxilla for support<br>of a complete denture<br>prosthesis, a final or<br>intermediate abutment for fixed<br>bridgework or for partial<br>dentures, or as a single tooth<br>replacement. |
| Material | Roxolid® (Ti-Zr alloy) | Roxolid® (Ti-Zr alloy) | Commercially pure titanium,<br>Grade 4 | Surgical grade titanium alloy (Ti-<br>6Al-4V) |
| Surface<br>Treatment | SLActive® | SLActive® | Grit blasted, acid etched | Grit blasted, acid etched, and<br>hydroxylapatite |
| FEATURE | SUBJECT DEVICE | PRIMARY PREDICATE<br>DEVICE | REFERENCE DEVICE | REFERENCE DEVICE |
| K Number | Straumann® 4 mm Short<br>Implants<br>(K202942) | Straumann® Dental Implant<br>System<br>(K130222) | Neodent Implant System<br>(K123022) | Bicon Implants with 2.5 mm<br>Internal Connection<br>(K092035) |
| Apical<br>Diameter | Ø4.1 and Ø4.8 mm | Ø4.1 and Ø4.8 mm | Ø3.3, Ø4.3, and Ø5.3 mm | Ø4.0 |
| Coronal<br>Diameter | Ø4.8 and Ø6.5 mm | Ø4.8 and Ø6.5 mm (TL)<br>Ø4.1 and Ø4.8 mm (BL) | Ø4.0, Ø5.0, and Ø6.0 mm | Unknown |
| Length | 4 mm | 6, 8, 10, 12, 14, and 16 mm (TL)<br>8, 10, 12, and 14 mm (BL) | 5 and 6 mm | 5 mm |
| Implant Design | Cylindrical | Cylindrical | Cylindrical | Cylindrical |
| Implant Neck<br>Height | 1.8 mm, smooth machined | 1.8 mm, smooth machined (TL)<br>None (BL) | None | None |
| Thread Pitch | 0.8 mm | 1.25 mm (TL)<br>0.8 mm (BL) | 0.6 mm (Ø4.0)<br>0.8 mm (Ø5.0 and Ø6.0) | Unknown |
| Implant/<br>Abutment<br>Connection | 8° cone, internal octagon, 45°<br>shoulder | 8° cone, internal octagon, 45°<br>shoulder (TL)<br>15° cone, 4 grooves/protrusions<br>(BL) | Morse taper | Locking Taper |
| Compatible<br>Abutments | Straight Abutments | Straight and angled abutments | Straight abutments | Straight and angled abutments |
| Healing<br>Protocol | 10-12 weeks | 3-4 weeks | No immediate loading | 10-12 weeks |
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# Straumann® 4 mm Short Implants
510(k) Summary
Table 1 – Comparison Matrix
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# Straumann® 4 mm Short Implants
510(k) Summary
## 5.8 Performance Testing
The following performance data support the substantial equivalence determination.
#### 5.8.1 Sterilization Validation and Shelf Life
The implants will be provided sterile via gamma irradiation at a dose of 25 kilogray (2.5 Mrad) minimum and will be sterilized after packaging. A sterility assurance level (SAL) of 10° had been validated in accordance with ISO 11137-1:2006, Sterilization of health care products – Radiation - Part 1: Requirements for development, validation and routine control of a sterilization process for medical devices, 2006-04-05. The validation method used was the over kill bioburden method in accordance with ISO 11137-2:2006. Sterilization of health care products – Radiation – Part 2: Establishing the sterilization dose.
The packaging of the subject devices is identical to the packaging of the primary predicate device and the shelf life is 5 years when considering that the materials are not adversely affected by time.
There are no changes to the sterilization method or processes when compared to the Straumann predicate devices.
Pyrogenicity information provided is based on FDA Guidance on "Submission and Review of Sterility Information in Premarket Notification (510(k)) Submission for Devices Labeled as Sterile, issued on 21 January 2016." The subject devices will not be labeled as non-pyrogenic. The method used to determine the device meets pyrogen limit specifications is LAL Endotoxin Analysis with testing limit of 20 EU/device, based on a blood contacting and implanted device.
## 5.8.2 Biocompatibility Testing
Biological assessment has been performed according to ISO 10993-1:2009 "Biological evaluation of medical devices – Part 1: Evaluation and testing within a risk management process" and to the FDA Guidance document "Use of International Standard ISO 10993-1, 'Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process', Guidance for Industry and Food and Drug Administration Staff, Document issued on: June 16, 2016" for each of the subject devices.
The subject devices have the identical nature of body contact, contact duration, material formulation and sterilization methods compared to the primary predicate devices.
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## Straumann® 4 mm Short Implants
510(k) Summary
## 5.8.3 Performance Testing - Bench
Evaluation of the endosseous surface area was conducted for the subject devices as well as the primary predicate and reference devices. The surface areas were evaluated for the total endosseous surface, initial bone-to-implant contact, as well as with simulated 1 and 2 mm of bone loss.
Dynamic fatigue tests were conducted 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" and a modified ISO 14801 (Dentistry – Implants – Dynamic fatigue test for endosseous dental implants) test set-up due to the length of the subject devices. The test environment for the subject devices was ambient air. The Straumann® 4 mm Short Implants met the defined acceptance criteria and the mechanical strength requirements for its intended use. The results of the dynamic fatigue testing demonstrated the subject devices are equivalent to the primary predicate devices.
## 5.8.4 Performance Testing - Clinical
A review and summary of published clinical literature evaluating the use of 4 mm short implants in fully and partially edentulous adult patients and a summary of the complaint trends and vigilance reporting associated with the use of Straumann 4 mm short dental implants has been submitted to support substantial equivalence. Parameters evaluated in the clinical literature provided included study name, number of study participants, number of implants placed, duration of follow-up (in years); implant placement site, implant failures, survival rates and alveolar bone loss.
The clinical literature represents 57 cases with 118 implants of 4.1 mm diameter x 4 mm length, with 12 to 27 months of follow-up. Clinical cases in the literature were represented by the following patient scenarios:
- . Fixed partial dentures/splinted units (one implant per unit)
- . Pontic cases in combination with at least one longer implant
- . Fully edentulous cases with at least one 4 mm Short Implant in combination with 2 longer implants in the anterior region and at least four total implants
- Delayed loading .
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# Straumann® 4 mm Short Implants
## 510(k) Summary
Survival rates were at least 90%, with most failures attributed to early loss. This is comparable with data from 6 mm implants, in which the mean failure rate was 93.7%, also with most failures attributed to early loss. The available data indicates the subject dental implants may be used reliably and predictably with comparable survival and success rates to the primary predicate devices.
Post-market assessment via complaint trends and vigilance reporting data reflected 42,760 sales of 4.1 mm diameter x 4 mm length implants and 12,119 sales of 4.8 mm diameter x 4 mm length implants from September 2013 to September 2020. The overall complaint rate was 4.20% to 4.47%, with 3.41% to 3.84% of cases due to early loss. This is comparable with data from the primary predicate (implants with the same diameters but with 6 mm length), in which the overall complaint rate ranged from 3.00% to 4.07%, with early loss accounting for 2.27% to 2.57% of cases.
The results being presented in this premarket notification meet the definition of valid scientific data as defined in 21 CFR 860.7. The results are being presented in accordance with the guidance document "Guidance for Industry and FDA Staff – Class II Special Controls Guidance Document: Root-form Endosseous Dental Implant and Endosseous Dental Abutments".
The clinical data suggest performance of the Straumann® 4 mm Short Implants is equivalent to the primary predicate device if used according to the indications for use.
### Conclusion 5.9
The documentation submitted in this premarket notification demonstrates the subject devices are substantially equivalent to the primary predicate and reference devices.