Modern dentistry is inclined toward implant prosthodontic treatment as a favorable solution for partially or completely edentulous patients. Implant prosthetic treatment implies embedding alloplastic material into the bone which is previously estimated to be sufficiently wide and deep for implant placement. The implant is used to replace the root of a missing natural tooth. It integrates into the bone within 3 to 6 months after implant placement. The prosthetic component of the implant can either be fixed using cement or screws. There are several methods of implant loading: immediate, early and delayed loading. Immediate loading implies the placement of the prosthesis within 48 hours after implant placement. There are two principal advantages of this loading method – limiting the treatment to a single surgical procedure (the implants do not require re-opening) and a shorter treatment duration, which has a positive psychological and social effect on the patient. In the following case report, it will be presented the insertion of four implants into the lower and six implants into the upper jaw (the so-called All-on-4 and All-on-6 concepts). The prosthetic phase of the treatment, which follows implantation, includes loading the implants immediately with temporary prosthetic work which is screwed onto the implants. Provisional prosthetic restoration is replaced by permanent ones after six months.