Problem to be solved: to provide a partial denture capable of being removable without the removal of the remaining teeth or alveolar bone, such as a crown bridge or an implant, without the use of a denture base like a partial denture.The partial denture according to the present invention is constructed so as to be able to support and engage the artificial teeth and the artificial teeth, and to open and close the teeth in an open state, and in a closed state, a pair of engaging members engaging with the inside and outside of the teeth in the closed state and releasing the closed state of the pair of engaging members The locking structure is provided to hold at least one of the pair of engaging members, and each of the plurality of teeth in the tooth column engages with an inclined portion inclined in the direction of the toothThe second engaging portion is provided with a first engaging portion, and at least one tooth in the tooth row is provided with a second engaging portion engaging with an undercut portion inclined to the side opposite to the inclined portion.Diagram【課題】クラウンブリッジやインプラントのように残存歯や歯槽骨の切削を伴わず、しかも、部分床義歯のように義歯床を用いることなく装着することができて、取り外しも可能な部分義歯を提供する。【解決手段】本発明に係る部分義歯は、人工歯と、人工歯を支持し、開閉可能に構成され、開状態において、歯列を挿入可能に離間するとともに、閉状態において、歯列に内側及び外側から係合する一対の係合部材と、一対の係合部材の閉状態を解除可能に固定するためのロック構造とを備え、一対の係合部材の少なくともいずれか一方の係合部材は、歯列における複数の歯のそれぞれの、歯根に向かうほど広がる方向に傾斜する傾斜部に係合する第一の係合部を備えるとともに、歯列における少なくとも一つの歯の、傾斜部とは反対側に傾斜するアンダーカット部に係合する第二の係合部を備える。【選択図】図2
