The primary difference is the number of implants used to support a full-arch bridge. All-on-4 utilizes four titanium posts, often angled to bypass bone loss. All-on-6 uses six vertical posts, providing superior stability and even bite force distribution for patients with adequate jawbone density.
- Support redundancy: All-on-6 offers a safety margin if one implant fails to fuse properly.
- Bone requirements: All-on-4 allows placement in low-density areas without requiring extensive bone grafting.
- Bite pressure: Patients with heavy biting forces or bruxism benefit from six points of contact.
- Structural layout: All-on-6 distributes mechanical loads more evenly across the entire dental arch.
Bookimed Expert Insight: Spanish clinics like Clínica Dental Raíces utilize advanced 3D intraoral scanners to determine if your anatomy justifies the extra cost of six implants. While All-on-6 in Spain averages $14,200 to $22,300, choosing the six-implant route often prevents long-term prosthetic wear in patients with wider jaw structures.
Patient Consensus: Many patients find that the upper jaw often requires six implants for better stability due to lower bone density. They emphasize confirming if the bridge material is zirconia or acrylic, as material choice impacts durability as much as implant count.