Biomechanical comparison of four treatment models for the totally edentulous maxilla: a finite element analysis

The aim of this study is to evaluate by finite element analysis different techniques totally edentulous maxilla rehabilitation, considering implants, bone tissue, metallic infra-structure, and prosthetic abutments characteristics, means a three-dimensional model. Stress distribution on was analyzed with four configurations (six implants axially installed, all-on-four technique, M-4 conventional two zygomatic implants). Greater tension tissue were found around distal in all treatment groups, but not exceeding resistance limits cortical bone. Von Mises stress higher the region techniques. Higher concentration seen angled implants. highest values minimal compression stresses concentrated peri implant-bone especially model All-on-4. Therefore, present revealed that implants) for are feasible safe, from biomechanical point view.