The term All-on-4, also known as All‐on‐Four and All‐in‐Four,refers to 'all' teeth being supported 'on four' dental implants, a prosthodontics procedure for total rehabilitation of the edentulous (toothless) patient, or for patients with badly broken down teeth, decayed teeth, or compromised teeth due to gum disease.

It consists of the rehabilitation of either edentulous or dentate maxilla and / or mandible with fixed prosthesis by placing four implants in the anterior maxilla, where bone density is higher

The four implants support a fixed prosthesis with 10 to 14 teeth, and it is placed immediately, typically within 24 hours of surgery.

The All-On-Bar solution, with the latest technology, computer aid design/Mill (cad/cam) the all-on-4 has evolved including the All-on-bar concept, which is adding a milled titanium bar structure to the dental implants which helps keep them working together.

Protecting the implants from failures even after the hybrid bridge is broken. this concept helps the clinician provide a better long-lasting solution, instead of a conversion-denture which is a chair side repair and modified denture.

The All-On-Bar reduces the appointments, eliminating the Denture Conversion Temporary by replacing it with a long lasting hybrid, some patients keep this option as their final due to a lower budget or because the space is limited for other final solutions.

The All-on-4 treatment concept is a prosthodontic procedure (i.e replacement of missing teeth) that provides a permanent, screw-retained, same-day replacement for the entire upper and / or lower set of teeth with a bridge or denture

The head of the implant emerges in approximately the second premolar position. This will allow a molar tooth to be cantilevered posterior, resulting in a denture or bridge with approximately twelve teeth.