Views: 222 Author: Dream Publish Time: 2025-04-27 Origin: Site
Content Menu
● Understanding the Osstem Implant Abutment Screw Hex
>> Specifications of Osstem Abutment Screw Hex
>> Importance of the Hex Design
● Can You Replace an Osstem Implant Abutment Screw Hex?
>> Yes, It Is Possible to Replace the Screw Hex
>> Tools and Techniques for Replacement
● Step-by-Step Guide to Replacing an Osstem Implant Abutment Screw Hex
>> 1. Assessment and Diagnosis
>> 2. Removal of the Old Screw
>> 4. Replacement Screw Installation
>> 5. Final Prosthesis Reattachment
● Common Causes of Osstem Implant Abutment Screw Hex Failure
>> 1. Improper Torque Application
● Challenges in Replacing Osstem Implant Abutment Screw Hex
● Preventive Measures to Avoid Screw Replacement
● Best Practices for Handling Osstem Implant Abutment Screw Hex
● FAQ
>> 1. What is an Osstem implant abutment screw hex?
>> 2. Can a damaged or stripped Osstem abutment screw hex be replaced?
>> 3. What torque should be applied when tightening the Osstem abutment screw hex?
>> 4. How do you prevent screw loosening in Osstem implants?
>> 5. What should be done if the abutment screw hex is fractured inside the implant?
Dental implants have revolutionized restorative dentistry, offering patients durable and aesthetic solutions for missing teeth. A critical component in implant systems like Osstem is the abutment screw hex, which secures the abutment to the implant fixture. This article explores the possibility and procedures involved in replacing an Osstem implant abutment screw hex, along with detailed insights into its specifications, challenges, and clinical considerations.
The Osstem implant abutment screw hex is a titanium screw designed to connect the abutment to the implant fixture securely. It features a hexagonal socket (hex) that allows for precise torque application using a compatible hex driver. This screw is essential for maintaining the stability and integrity of the implant-supported prosthesis.
- Material: Titanium grade V ELI (biocompatible and corrosion-resistant)
- Hex Size: 1.2 mm hex driver
- Thread Size: M 2.0
- Torque Recommendation: Typically 30 Ncm for regular platforms
- Compatibility: Designed specifically for Osstem TS implant systems and compatible prosthetic components.
The hexagonal design of the abutment screw head is crucial. It provides a positive engagement between the screw and the driver, allowing for controlled torque application and minimizing the risk of slippage during tightening or removal. This design also helps distribute occlusal forces evenly, reducing the risk of screw loosening or fracture.
Replacing the abutment screw hex on an Osstem implant is feasible and sometimes necessary due to complications such as screw loosening, damage to the hex socket, or screw fracture. However, the procedure requires careful handling to avoid damaging the implant fixture or surrounding bone.
- Screw Loosening: Common in implant prosthetics due to occlusal forces and micro-movements at the implant-abutment interface.
- Hex Damage or Slip: The hex socket can become stripped or damaged, making removal difficult.
- Fractured Screw: Mechanical failure from over-torque or material fatigue.
- Corrosion or Wear: Although titanium is highly resistant, long-term use and oral environment exposure can cause minor corrosion or wear, necessitating replacement.
- Use a 1.2 mm hex driver compatible with Osstem screws to remove and replace the screw.
- In cases of hex damage or screw fracture, specialized kits like the Easy Screw Removal (ESR) Kit are used. This kit includes drills, removal tips, and guides to safely extract damaged screws without harming the implant fixture.
- Torque wrenches are essential to apply the correct tightening force (usually 20-30 Ncm) to avoid over-tightening or under-tightening.
- Ultrasonic scalers with specialized tips can sometimes help loosen tightly engaged screws by disrupting debris or corrosion.
- Take a periapical X-ray to check the condition of the screw and abutment connection.
- Check for signs of screw loosening, damage, or fracture.
- Evaluate prosthesis fit and occlusion to identify contributing factors to screw failure.
- Use a 1.2 mm hex hand driver to unscrew the abutment screw if it is intact.
- If the hex is stripped or the screw is fractured, use the ESR Kit:
- Drill a small hole (0.8 mm) in the screw hex.
- Attach the abutment removal tip mini to the screw hole.
- Rotate in reverse to extract the damaged screw.
- In difficult cases, a dental operating microscope can improve visualization during screw removal.
- Remove any debris or metal chips using irrigation and suction.
- Inspect the implant threads for damage.
- Use an explorer or probe to check for thread integrity.
- If threads are damaged, consider implant fixture replacement or repair options.
- Select a new Osstem abutment screw hex compatible with the implant system.
- Insert the screw and tighten with a torque wrench to the recommended torque (usually 30 Ncm).
- Confirm proper seating with X-ray to avoid misfit or gaps.
- Apply a small amount of threadlocker if recommended by the manufacturer to reduce loosening risk.
- After screw replacement, reattach the abutment and prosthesis.
- Verify occlusion and stability.
- Schedule follow-up appointments to monitor screw integrity and prosthesis function.
Understanding the reasons behind screw failure can help prevent future complications.
Over-torquing can cause screw fracture or deformation of the hex socket, while under-torquing may lead to screw loosening.
Excessive biting forces, bruxism, or malocclusion can stress the abutment screw, causing loosening or fracture.
Using non-original or incompatible components can lead to poor fit and increased mechanical stress.
Peri-implantitis or bone loss around the implant can destabilize the implant-abutment interface, affecting screw integrity.
- Hex Socket Damage: Stripped hex can complicate removal, requiring precise drilling and specialized tools.
- Screw Fracture: Fractured screws may be tightly engaged and require careful extraction to avoid implant damage.
- Misfit and Loosening: Improper torque or misalignment can cause screw loosening or prosthesis movement.
- Jammed Mount or Screw: Over-torque or improper implant placement can cause the mount or screw to jam, complicating removal.
- Patient Factors: Limited mouth opening or patient discomfort can make screw replacement procedures more challenging.
- Always use original Osstem components to ensure compatibility.
- Apply the manufacturer's recommended torque using a calibrated torque wrench.
- Verify prosthetic fit and occlusion to reduce undue stress.
- Educate patients about avoiding habits that increase implant stress, such as chewing hard objects or bruxism.
- Schedule regular maintenance visits to monitor implant and abutment condition.
- Always use original Osstem components to ensure compatibility and avoid mismatch.
- Apply the recommended torque using a calibrated torque wrench to prevent screw deformation or fracture.
- Verify screw and abutment seating with X-rays to avoid misfit and potential loosening.
- In cases of screw damage, use specialized removal kits such as the ESR kit to minimize implant damage.
- Avoid over-torquing during implant placement to prevent hex damage or screw jamming.
- Maintain a clean surgical field to prevent debris accumulation around the implant-abutment interface.
- Educate dental staff on the importance of proper handling and torque application.
Replacing an Osstem implant abutment screw hex is a common and manageable procedure in implant dentistry. With the appropriate tools, techniques, and knowledge of the Osstem system specifications, clinicians can effectively address issues like screw loosening, hex damage, or screw fracture. Utilizing specialized removal kits such as the ESR kit ensures safe extraction of damaged screws, preserving the implant fixture. Proper torque application and verification of fit are critical to the long-term success of the implant restoration. Preventive measures and regular maintenance can significantly reduce the need for screw replacement, ensuring patient satisfaction and implant longevity.
An Osstem implant abutment screw hex is a titanium screw with a hexagonal socket used to connect the abutment to the implant fixture securely. It requires a 1.2 mm hex driver for installation and removal.
Yes, damaged or stripped screws can be replaced using specialized tools such as the Easy Screw Removal (ESR) Kit, which includes drills and removal tips designed to extract damaged screws safely.
The recommended torque for Osstem abutment screws is generally 30 Ncm for regular platforms. Using a calibrated torque wrench is essential to avoid screw deformation or fracture.
Prevent screw loosening by ensuring proper torque application, using original components, verifying fit with X-rays, and avoiding occlusal overload. Internal hex connections offer better resistance to loosening compared to external hex designs.
If the screw is fractured, use an ESR kit or similar screw removal system to drill a hole in the screw hex, attach a removal tip, and carefully extract the screw in reverse rotation. Avoid damaging the implant threads during removal.
[1] https://shop.straumann.com/medentika/no/en_no/MPS/OSSTEM-Implants--compatible/OT-Series---compatible-with-OSSTEM-Implant-TS-System/OT-Serie-Abutment-screw/p/OT%2065/
[2] https://osstem.cz/download/katalog_ts-implant-system-procedure.pdf
[3] https://www.youtube.com/watch?v=5_A-yexOyCw
[4] https://www.dessdental.com/en/screw-hex-1-22-mm-compatible-with-osstem-ts
[5] https://www.youtube.com/watch?v=-_QrMjyoitQ
[6] https://www.youtube.com/watch?v=z2HlNHQrZNM
[7] https://oemdent.com/products/screw-for-multi-abutment-osstem%C2%AEts-hexagon
[8] https://www.youtube.com/watch?v=QXuq7PuRsyw
[9] https://www.osseonews.com/abutment-screw-loosening-is-this-inevitable/
[10] https://www.osstem.com.hk/wp-content/uploads/2020/03/EFR-ESR-Kit-01.2015.pdf
[11] https://hiossen.com/wp-content/uploads/2024/08/Rescue-Kits-Manual_PM23RCKLTR1.0-1.pdf
[12] https://pmc.ncbi.nlm.nih.gov/articles/PMC11179142/
[13] https://www.youtube.com/watch?v=IDh-a2Wr9fI
[14] https://uniqa.dental/product/screw-for-abutment-for-osstem-conical-connection-ts-system-rp/
[15] https://www.osstem.com.hk/wp-content/uploads/2020/08/IM_TSProstheticProcedure_172P_ENG2019-100%E6%9C%AC.pdf
[16] https://www.spotimplant.com/en/knowledge-base/abutment-screw-torque-and-driver/
[17] https://www.aliexpress.com/item/1005005485893080.html
[18] https://www.dessdental.com/en/screw-hex-1-22-mm-compatible-with-osstemr-ts
[19] https://www.osstemuk.com/wp-content/uploads/2020/02/TS-System-Catalogue-Prosthetics-Fixtures-Abutments.pdf
[20] https://www.youtube.com/watch?v=qWSi3C8cEss
[21] https://www.youtube.com/watch?v=IDh-a2Wr9fI
[22] https://osstem.by/wp-content/uploads/2020/03/3.pdf
[23] https://www.youtube.com/watch?v=MgBQvKnxIsk
[24] https://www.osseonews.com/abutment-screw-loosening-is-this-inevitable/
[25] https://www.osstem.eu/prosthetics/ts_implant_abutments/stock_abutments
[26] https://www.dentoris.com/cat/SURGICAL-MANUAL-EN.pdf
[27] https://www.youtube.com/watch?v=HZlxR4Yx7us
[28] https://www.youtube.com/watch?v=KjdaO4HOflE
[29] https://www.osstemuk.com/DOCUMENTS/SERVICES/CATALOGUES/DOWNLOADS/FULL%20IMPLANT%20SYSTEM%20CATALOG.pdf
[30] https://www.dentalkart.com/mediden-osstem-screws-regular.html
[31] https://www.youtube.com/watch?v=XbZ5E7tAxEk
[32] https://www.osstemuk.com/wp-content/uploads/2020/01/2019-TS_en_0705.pdf
[33] https://www.youtube.com/watch?v=QXuq7PuRsyw
[34] https://www.osstem.com.hk/wp-content/uploads/2021/09/TS-Aug-2021-e-version.pdf
[35] https://bd.denall.com/vod/play?id=189
[36] https://www.youtube.com/watch?v=FfRZuNaKGdU
[37] https://www.dessdental.com/en-pt/screw-hex-1-22-mm-compatible-with-osstemr-ts
[38] https://www.maxfac.no/file/dokumentasjon/osstem-implant-system-2013-bok.pdf
[39] https://community.osseonews.com/t/confusing-misfit-of-crown-abutment-on-osstem-implant/37
[40] https://www.yagudentaltech.com/what-are-the-risks-of-using-incompatible-abutment-screws-with-osstem-implants.html
[41] https://www.osstem.de/p.php?p=35
[42] https://www.accessdata.fda.gov/cdrh_docs/pdf22/K221684.pdf
[43] https://shop.straumann.com/medentika/di/en_di/MPS/OSSTEM-Implants--compatible/OT-Series---compatible-with-OSSTEM-Implant-TS-System/OT-Serie-Abutment-screw/p/OT%2064/
[44] https://shop.straumann.com/medentika/no/en_no/MPS/OSSTEM-Implants--compatible/OT-Series---compatible-with-OSSTEM-Implant-TS-System/OT-Serie-Abutment-screw/p/OT%2065/
[45] https://www.youtube.com/watch?v=aToZFtD6TTo
[46] https://zirkonzahn.com/en/cad-cam-systems/implant-systems/available-systems/osstem/convertible-abutment
