The present invention relates to an endodontic supporting pin and to a related connector, for dental applications of prosthetic reconstruction of a tooth, as well as to a method for the installation and fastening thereof. The pin comprises an elongated body, substantially cylindrical or with truncated-cone shape, with a longitudinal axis and an external diameter dext provided with a through hole, preferably circular, extended inside the elongated body with internal diameter dint and with a drilling axis substantially parallel to the longitudinal axis and preferably coaxial thereto, wherein the ratio between the internal diameter dint of the through hole and the external diameter dext of the elongated body, determined on a common measurement plane, is comprised between 0.3 and 0.9.
