Tooth is one of the most important parts of the body in terms of beauty and eating and the use of implants is considered as the most familiar strategies to deal with being edentulous. Unfortunately, the implants may break and this brings secondary problems. The present study aims to determine the stress distribution in dentures through finite elements analysis. In order to reduce stress concentration in the implant, Functionally graded materials (FGM) that their mechanical properties change gradually and continuously, were used. These changes are made from hydroxyapatite to titanium. It is observed that the stress concentration is significantly reduced.
