Twenty five years ago Nacional identified a need in the dental and orthopaedic areas in developing bones to study and training, since then, it has been developing DIDACTIC PRODUCTS TO THE STUDY OF THE HUMAN ANATOMY. Our concern with the quality and precision of the materials used as raw material made our bones being recognized as faithful replicas, reproducing with quality the external and internal anatomy of real bones. Our partnerships with colleges, institutes, masters and factories of medical, dental and veterinary implants allow us the development of new models according to the current needs of the market. Therefore we contribute to a better capacitation of professionals in a more practical, humanized and competitive way to an increasingly aggressive and equally demanding market field.