For an adult, the partial or total loss of natural teeth is a difficult moment of one’s life, as many times is considered a sign of aging, and consequentially lead to a stressful state both physically and emotionally. In the Holmes and Roche stress scale, the teeth loss is one of the main stress cause after the loss of the spouse and divorce. If the loss of one tooth is a mutilation, the total loss of the chewing function is for many people a serious functional and aesthetic disability. The partial or total loss of natural teeth is frequently treated by the application of mobile prosthesis or bridges supported by healthy teeth properly prepped. This treatment is not durable and can cause serious problems and pains. The treatment with prosthesis that are not supported by implants can cause psychological traumas, compromise the chewing ability and give a sense of insecurity. The consequences affects the individual health, the psychological balance and relationship: -Changing and aging of the face appearance -Progressive residual bone absorption - Reduction of the residual bone available -Natural tooth damage to support the bridge - Pain caused by the prosthesis stability The problem of the replacement of lost teeth has been treaded from ancient times. Only recent discoveries in dentistry lead to safe results. It has been demonstrated that biocompatible implants made in pure titanium, placed by a surgical procedure without traumas are integrated in the bone with long term stability. This biological phenomenon is called osteointegration. After a period of bone integration of only two months, the new prosthesis can be fixed to the implants in a definitive way. Nowadays millions of people had successfully implant treatments. Implant therapy is now widely spread and safe, thanks to the process of integration between implant and bone that is not connected with the patient’s age and the use of modern painless techniques used for the placement of implants.