The present invention provides a denture and its attachment for providing a denture wearer with a superior feeling of wearing and a comfortable bite during meals. An attachment 20 has a metal crown 210 attached to one abutment tooth, and a projecting portion 220 made of a magnetic material provided around the abutment tooth. A grooved engaging portion 130 disposed on the end side adjacent to 80 and a magnet 140 accommodated on the coupling portion side with the free end denture, and the protruding portion engages with the grooved engaging portion. The free end denture is coupled to the abutment tooth so that the free end denture is not separated from the abutment tooth by the magnetic pulling force exerted on the protruding portion of the magnet, and the protruding portion is fitted in the grooved engaging portion. The relative position and the relative angle of the free end denture with respect to the abutment tooth can be changed within a predetermined range while at least a part of the curved portion of the protruding portion remains in the grooved engagement portion, and the denture of the grooved engagement portion The floor-side end portion is provided with a protruding portion 135 for preventing the protrusion. [Selection] Figure 1【課題】義歯装着者に優れた装着感と食事中の快適な咬み心地を与える義歯とその取付けアタッチメントを提供する。【解決手段】取付けアタッチメント２０は、一本の支台歯に取り付ける金属冠２１０と、この周囲に備わった磁性体からなる突出部２２０を有し、義歯は遊離端義歯１０からなり、支台歯８０に隣接させる端部側に配置された溝付き係合部１３０と、遊離端義歯との結合部側に収容された磁石１４０を有し、突出部が溝付き係合部に係合することで遊離端義歯が支台歯に結合し、磁石の突出部に及ぼす磁気引っ張り力で遊離端義歯が支台歯から離れないようにし、溝付き係合部には、突出部が嵌まり込むと共に、突出部の湾曲部の少なくとも一部が溝付き係合部内に磁力で留まりながら、支台歯に対する遊離端義歯の相対位置や相対角度が所定範囲内で変化でき、溝付き係合部の義歯床側端部に突出部の抜け止め部１３５が備わっている。【選択図】図１
