All-On-Four Concept in Implant Dentistry: A Literature Review

The implant technology developed as the all-on-four concept is offered as an alternative to conventional implant applications. In the all-on-four technique, 4 implants are placed in the interforaminal region in the mandible and in the pre-maxillary region in total edentulism cases. This application is based on the placement of two of these implants to the anterior region so as to be perpendicular to the occlusal plane, and on the placement of two implants to the posterior region so as to be inclined 30-45o.