A mounting attachment (20) has a metal crown (210) mounted to one abutment tooth (80) and a projection part (220) that is formed from a magnetic body and that is provided around the periphery of the metal crown. This denture is formed from a free end denture (10), and has a grooved engagement part (130) disposed on the end portion side adjacent to the abutment tooth (80) and a magnet (140) stored on a side closer to a portion joined to the free end denture (10). The free end denture (10) is coupled to the abutment tooth (80) through engagement of the projection part (220) with the grooved engagement part (130). With magnetic tensile force applied by the magnet (140) to the projection part (220), the free end denture (10) is configured so as not to be separated from the abutment tooth (80). The projection part (220) fits into the grooved engagement part (130). While at least a portion of a bent section of the projection part (220) is retained in the grooved engagement part (130) by magnetic force, a relative position and a relative angle of the free end denture (10) with respect to the abutment tooth (80) can be changed in predetermined ranges. A disengagement preventing section (135) for the projection part (220) is provided to an end portion on the denture base side of the grooved engagement part (130).L'invention concerne une fixation de montage (20) dotée d'une couronne métallique (210) montée sur une dent-pilier (80) et d'une partie saillante (220) formée d'un corps magnétique et disposée sur la périphérie de la couronne métallique. Cette prothèse dentaire est formée à partir d'une prothèse dentaire à extension (10), et comporte une partie de mise en prise rainurée (130) disposée sur le côté de la partie d'extrémité adjacent à la dent-pilier (80) et un aimant (140) stocké sur un côté plus proche d'une partie reliée à la prothèse dentaire à extension (10). La prothèse dentaire à extension (10) est couplée à la dent-pilier (80) par l'engagement de la partie sailla
