What is the All-on-4® treatment concept?
The All-on-4® treatment concept is a cost-efficient,
graftless solution porvides patients with a fixed full-arch prosthesis on the day of surgery.
1. Full-arch rehabilitation with only four implants
Two axizl anterior implants and two implants tilted up to 45º in the posterior.
2. Immediate Function:
(Fixed acrylic bridge) for patients meeting criteria for immediate loading of implants
3. A graftless procedure
How is it possible?
By tilting the two posterior implants, the bone-to-implant contact is enhanced, providing optimized bone support even with minimum bone volume. Additionally. tilting of implants in the maxilla allows for improved anchorage in better quality anterior bone. Furthermore, the implant design from Nobel Biocare allows bicortical anchorage in the cortical bone of the sinus wall and the nasal fossa
Tilting of the posterior implants also helps avoid vital structures and results in a better distribution of implants along the alveolar crest, which optimizes load distribution and allows for a final prosthesis with up to 12 teeth.
Nobel Biocare offers straight as well as 17º and 30º angled Multi-unit Abutments for all Nobel Biocare implants. The abutments are available with various collar heights to match the thickness of the soft tissue.
With the All-on-4® treatment concept, patients that meet the criteria for immediate loading can also benefit from an immediate implant-supported all-acrylic restoration, as a provisional prosthesis is screwed onto the implants right after surgery. Final solutions include both fixed and fixed-removable prostheses.