What we mean with the term dental implantology is the mixture of surgical techniques designed to functionally rehabilitate a patient affected by total or partial edentulism by the use of dental implants, such as devices, metallic and/or not, surgically inserted inside or above the mandibular or maxillary bone, but under the gingiva, to better allow the connection of prosthesis, fixed or mobile, for the restoration of the masticatory function. These implants can be differently shaped, inserted in different sites by many techniques and then connected to the prosthesis at different times. Nowadays, the plants are above all made from titanium. The most used are the endosseous screw implants, left submerged under the gingiva for a reasonable period relatively to the site. The dental implantology is then subdivided into endosseous and iuxtaosseous. Iuxtaosseous implants uses only grating systems with fixed non-submerged abutment and therefore for non-osseointegrable site and loading modes if made of cobalt-chrome-molybdenum, or even osseointegrable if made in titanium and inserted with appropriate surgical techniques allowing the new bone formation above their structure.