Learning outcomes:
At the conclusion of this session, the audience will be able to:

• Understand the science and the biological principles of the All-on-4 concept for the upper and lower jaw.
• Describe the patient selection criteria, which influence a successful clinical outcome, using evidence-based science.- Explain the clinical significance of the use of the all-on-4 concept.
• Discuss why a team concept approach is of utmost importance for a significant more successful clinical outcome.
• Summarize the clinical and technical treatment steps for the All-on-4 concept.

Scientific evidence:
Maló P, Rangert B, de Araújo Nobre M. "All-on-Four" immediate-function concept with Brånemark System implants for completely edentulous mandibles: A retrospective clinical study. Clin Implant Dent Relat Res 2003; 5 (Suppl 1): 2-9.

Maló P, Rangert B, de Araújo Nobre M. All-on-4 immediate-function concept with Brånemark System implants for completely edentulous maxillae: A 1-year retrospective clinical study. Clin Implant Dent Relat Res 2005; 7 (Suppl 1): S88-94.

Maló P, de Araújo Nobre M, Petersson U, Wigren S. A pilot study of complete edentulous rehabilitation with immediate function using a new implant design: Case series. Clin Implant Dent Relat Res 2006; 8:223-232

Davo Rodriguez R, Malevez C and Rojas J. Immediate function in atrophic upper jaw using Zygoma implants: A preliminary study. J Prosthet Dent 2007; 97(suppl):S44-S51.

Vrielinck L, Politis C, Schepers S, Pauwels M, Naert I. Image-based planning and clinical validation of zygoma and pterygoid implant placement in patients with severe bone atrophy using customized drill guides. Preliminary results from a prospective clinical follow-up study. Int. J Oral Maxillofac Surg 2003; 32:7-14.