The Removable prosthetic rehabilitation of a thoroughly edentulous person is not always as simple as it may appear. The prosthetic supporting surface can be the shelter of bone hypertrophy. This hypertrophy can compromise and make prosthetic treatment difficult and even impossible as these anatomical obstacles compel the practitioner to harmful compromise for the stability of the prostheses, as much at the extent of the bases as at the level of the occlusion and the esthetics. A surgical arrangement of the prosthetic space is therefore necessary. A preprosthetic analysis is mandatory so as to quantify the tissues to be removed. Through this work, we will try to illustrate via a clinical case the analytical and therapeutic approaches adopted to resolve this problem for an optimal prosthetic balance.