The investigation of effect of placing anterior implants with different angles on the immediat loading 4 implant supported treatment system using three dimensional finite element stres analysis method

Dental implants are in order to ensure that the loss of oral function and aesthetics deteriorated after natural teeth are applied routinely to be recovered. Physiological resorption induced alveolar bone loss seen more often in the beginning and after the loss of teeth in the elderly population is often make implant treatments more difficult. After this, the surgical procedures complicates the implant treatment processes. Efforts to shorten this processes results emerged alternative methods and implants having different design features. İmmediat loading 4 implant supported treatment system is the most successful alternative method. Eliminate the additional surgical procedures such as bone grafting in the mandible posterior region and sinus lifting operations in the maxillary region and replacement the prothesis in the same day are the most important advantages of the system. In our study, we investigated the effect on the system implementation of different angles of axial implants. Finite element stress analysis method is used to measure stress areas. We performed horizontal and vertical forces to simulate masticatory forces. We measured the resultant stress value as a result of the applied forces. The highest stress levels were observed in the neck of the angled implants and abutments. Inclined 30 degrees to the mesial of axial implants yielded better results in the horizontal forces applied and inclined 15 degrees to the distal of the axial implants yielded better results in the vertical forces applied.