[Comparative study of the most common prosthetic aids]

Area of Science:

• Materials Science
• Mechanical Engineering
• Biomedical Engineering

Background:

• Anchors and attachments are crucial in various applications, requiring durability under stress.
• Understanding material degradation is key to ensuring long-term performance and safety.

Purpose of the Study:

• To evaluate the impact of permanent load on common anchors and attachments.
• To compare the performance and durability of different anchor types after stress testing.

Main Methods:

• Two frequently used anchors and attachments were subjected to permanent load using an alternating bending machine.
• Removing force, removing performance, and vertical mobility were measured post-load.

Main Results:

• All tested components exhibited signs of wear and tear.
• Average removing force decreased by approximately 25%, with Bona anchors showing a 60% reduction.
• Average removing performance reduced by 20%, while Bona anchors experienced a 75% decrease.

Conclusions:

• Permanent load significantly degrades anchor and attachment performance.
• Bona anchors demonstrated a more pronounced decline in removing force and performance compared to others tested.