PROBLEM TO BE SOLVED: To secure good attachability by a dentist, prevent the prosthesis from rising when attached, and prevent the prosthesis from being detached with an appropriate maintenance force. A dental prosthesis (1) to be covered on an abutment tooth (2) or an inner crown, the abutment tooth (2) or the inner crown and a dental prosthesis (1) according to a Conus angle of the abutment tooth (2) or the inner crown. Provided is a dental prosthesis 1 having different cement spaces 3 between and. It is preferable that the thickness Wa of the cement space 3 having the first cornus angle Aa/2 is smaller than the thickness Wb of the cement space 3 having the second cornus angle Ab/2 smaller than the first cornus angle. [Selection diagram] Fig. 3【課題】歯科医師による良好な取付性を確保し装着時における補綴物の浮き上がりを防止すると共に、適切な維持力を備えて補綴物の離脱を防止する。【解決手段】支台歯２または内冠に被せられる歯科用補綴物１であって、支台歯２または内冠のコーヌス角に応じて、支台歯２または内冠と歯科用補綴物１と間のセメントスペース３の厚さが異なる歯科用補綴物１を提供する。第１コーヌス角Ａａ／２のセメントスペース３の厚さＷａは、第１コーヌス角より小さい第２コーヌス角Ａｂ／２のセメントスペース３の厚さＷｂより薄いことが好ましい。【選択図】図３
