Metal structure serving as interior support for a dental prosthesis, which comprises at least two support posts (1) designed to be secured to respective dental implants (10), and at least one bar (3) for joining two adjacent support posts (1), wherein at least one support post (1) comprises at least one protuberant element (4a, 4b) that projects from the flank thereof, and at least one bar (3) that comprises a first end (5) provided with a blind hole (6) designed to receive a first protuberant element (4a) of a support post (1) and providing an articulated, swivel-type connection, and a longitudinal recess (7) designed to receive a second protuberant element (4b) of the adjacent support post (1). This structure is easy to prepare and to fit.Estructura metálica para servir de soporte interior de una prótesis dental, que comprende al menos dos postes de soporte (1) destinados a ser fijados a respectivos implantes dentales (10), y al menos una barra (3) para unir dos postes de soporte (1) adyacentes, donde al menos un poste de soporte (1) comprende al menos un elemento protuberante (4a, 4b) que sobresale de su costado, y al menos una barra (3) que comprende un primer extremo (5) provisto de un agujero ciego (6) destinado a recibir un primer elemento protuberante (4a) de un poste de soporte (1) y ofrecer una conexión articulada a modo de rótula, y un rebaje longitudinal (7) destinado a recibir un segundo elemento protuberante (4b) del poste de soporte (1) adyacente. Esta estructura es de fácil preparación y montaje.
