The patented buttress threads in tapered internal hex implants contribute to what aspect?

• A. Ease of placement
• B. Improved retention
• C. Fluid dynamics
• D. Reduced implant cost

Answer: (B)

The patented buttress threads in tapered internal hex implants are specifically designed to improve retention. These threads create a mechanical interlocking effect between the implant and the surrounding bone, which enhances the overall stability and retention of the implant once it is placed. By increasing the surface area contact with the bone and optimizing the load distribution during masticatory function, buttress threads help secure the implant in its position, reducing the risk of micromovement and enhancing osseointegration. This feature is especially important in maintaining the integrity of the implant over time, ensuring long-term success and stability in various clinical situations.

In contrast, aspects like ease of placement may be influenced by various design features, but the primary contribution of buttress threads is to retention. Fluid dynamics and implant cost relate to other design or economic factors, and while relevant to the overall context of implant technology, they do not directly connect to the function of buttress threads in improving retention specifically.