Product Introduction
Dental multi-unit screw is a specialized component used in implant dentistry, particularly for securing multi-unit abutments to dental implants. Multi-unit abutments are commonly used in cases where angled corrections or additional prosthetic flexibility are required, such as in full-arch restorations (e.g., All-on-4® or All-on-6® protocols) or implant-supported bridges.
The multi-unit screw is designed to connect the abutment to the implant, ensuring stability and proper alignment for the final prosthetic restoration.
Key Features of Dental Multi-Unit Screws
Material
● Typically made from medical-grade titanium or titanium alloy, ensuring biocompatibility, strength, and resistance to corrosion.
● Some screws may be coated or treated to enhance their mechanical properties.
01
Design
● Thread Design: Precision-engineered threads ensure a secure connection between the abutment and the implant.
● Hexagonal or Star Drive: The screw head is designed to fit specific drivers (e.g., hex drivers) for controlled tightening.
● Torque Compatibility: Designed to be tightened to a specific torque value (usually between 15–35 Ncm), as recommended by the manufacturer.
02
Sizes
● Available in various lengths and diameters to accommodate different implant systems and clinical needs.
03
Function
● Secures the multi-unit abutment to the implant, providing a stable foundation for the prosthetic restoration.
● Allows for angled corrections (typically up to 30 degrees) to accommodate the patient's anatomical requirements.
04
Applications of Multi-Unit Screws
Full-Arch Restorations
Used in protocols like All-on-4® or All-on-6®to support fixed full-arch prosthetics.
Angled Abutments
Corrects the angulation of implants when they are not placed parallel to each other, ensuring proper alignment of the prosthetic.
Implant-Supported Bridges
Provides a stable connection for multi-unit bridges.
Overdentures
Used in implant-supported overdentures for added retention and stability.
Advantages of Multi-Unit Screws
Versatility
Allows for angled corrections, making it easier to work with implants placed at non-ideal angles.
Stability
Provides a secure connection between the abutment and implant, reducing the risk of micromovement.
Prosthetic Flexibility
Enables the use of screw-retained or cement-retained prosthetics.
Compatibility
Designed to work with specific implant systems, ensuring a precise fit.
Common Issues and Considerations
Screw Loosening
Can occur due to improper torque, occlusal overload, or poor fit. Regular maintenance and proper torque application are essential.
Fracture
Rare but can happen due to excessive forces or metal fatigue. Using high-quality screws and following manufacturer guidelines can minimize this risk.
Compatibility
Ensure the multi-unit screw is compatible with the specific implant system and abutment being used.
Torque Control
Always use a torque wrench to tighten the screw to the manufacturer-recommended torque value to avoid over-tightening or under-tightening.
Steps for Using Multi-Unit Screws
Preparation
● Ensure the implant is properly placed and osseointegrated.
● Select the appropriate multi-unit abutment and screw for the case.
Placement
● Attach the multi-unit abutment to the implant.
● Insert the multi-unit screw and tighten it using a torque wrench to the recommended torque value.
Prosthetic Attachment
● Once the abutment is securely in place, the prosthetic restoration (crown, bridge, or denture) can be attached.
Why Choose Yagu

Shenzhen Yagu Dental Technology Co., Ltd is a professional dental implant components manufacturer, with a number of imported manufacturing machines, professional technical personnel, more than 10 years of laboratory and clinical experience. We accept OEM & ODM customized products, like Premill Abutment, Analog, Customized Abutment, Ti base, Multi Unit MUA Abutment, Scan body, Healing Abutment, Impression coping, Multi Unit MUA Screws and so on. We have more than 50 system brand implant components, like Osstem Hiossen, Dentium, Straumann, Nobel, Alpha-Bio Tec, Adin, Cotex, BEGO, Dio, Zimmer, Neo Biotech, Mis, Camlog... and so on. We provide Competitive price, high quality and best after-sales service. Welcome to contact us for more details.




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