How to “jump” in a full-mouth rehabilitation? Are we ready to leave the comfort zone of the “single tooth dentistry”? It is a different world… If we decide to do it. So many questions to be answered… How can we convince the patient to accept a more global rehabilitation? How can we plan the sequences of the appointments without remakes and waste of time? How can we guide the laboratory technician in developing a customised full-mouth project? Can we do first a reversible test drive of the project? The 3STEP has the answers to all these questions. The 3STEP is an non invasive functional and esthetic stabilization of the mouth. The 3STEP is based on a "protocol" that has been clinically validated for more then 15 years on a large number of patients and with a high success rate. The secret of its value is based on: the attention to the diagnosis of the problem; a strict clinical and laboratory operative sequence; an absolute "trust" in adhesion; the occlusal adjustments based on chewing. The 3STEP isn't just a technique, it is a method, a method that becomes a discipline. The 3STEP is the new way of doing Prosthodontics. Its ambition is to become the starting point of every multidisciplinary approach, involving orthodontics, aesthetics, implantology, etc., from simple to complex prosthetic rehabilitations