2. Biomechanics of All-on-4 Implants for edentulous patients

One reason All-on-4® works so well is its ability to handle the forces of chewing. The implants distribute pressure evenly, protecting both the prosthetic and the bone.

Stress Distribution:

• • The angled placement of the back implants increases support, reducing stress on the bone and prosthetic.

• • This setup prevents the prosthetic from shifting or breaking under normal use.

Comparison with Other Systems:

• • All-on-6 Configurations: Adding two more implants provides more stability, but it also increases complexity and cost.

• • Traditional Full-Mouth Implants: These require more time and invasive procedures, making All-on-4® a simpler and faster option.
    
    

3. Materials for All-on-4 Restorations

Choosing the right material for the prosthesis is important for durability and appearance. Different options offer unique advantages.

Material Choices:

 1. Acrylic: Lightweight and affordable but prone to wear and cracking over time.

 2. Zirconia: Strong, durable, and visually appealing, making it great for long-term use.

 3. PEEK Hybrids: These combine flexibility and strength, reducing stress on the implants.

What to Consider: Patients who want a permanent dental implant solution often choose zirconia for its durability, while acrylic may suit those on a budget. Hybrid materials are a promising middle ground.