All-on-4 Treatment concept

Only four implants needed

The All-on-4 treatment concept, with its use of straight and angled Multi-unit abutments, was developed to provide edentulous patients with an immediately loaded full-arch restoration on only four implants – two placed vertically in the anterior, two placed at an angle of up to 45 degrees in the posterior region. 

By tilting the two posterior implants, the bone-to-implant contact is enhanced, providing optimal bone support even with minimum bone volume. Additionally, tilting of implants in the maxilla allows for improved anchorage in better quality anterior bone and bicortical anchorage in the cortical bone of the sinus wall and the nasal fossa. 

Tilting of the posterior implants also helps vital structures, such as the mandibular nerve or the maxillary sinus, and results in a better distribution of implants along the alveolar crest, which optimizes load distribution and allows for a final prothesis with up to 12 teeth. 

The All-on-4 treatment concept is a rehabilitation concept that maximizes the use of available bone. The surgical and prosthetic procedures follow a strict protocol including the products to be used. The success of the All-on-4 treatment concept is due to these specific protocols and products, namely the NobelSpeedy implants, which have been used with 10 years of follow-up. For the long term follow-up studies supporting the result and the success rate of the All-on-4 treatment concept, please click here.