The wearer himself / herself can attach and detach, and improve the comfort at the time of wearing. The prosthesis 12 of the dental prosthesis system 1 has a concave contact surface 58 a which contacts the gingiva 24. In the first reference section including the first reference line, the front tooth section joined the position shifted by 3 mm from the bottom of the artificial tooth 32 to the palate side or the lingual side in parallel with the first reference line and the center of the artificial tooth 32 The distance d 1 between the first point and the outer edge of the prosthesis 12 on the palate lid side or the lingual side is d 1 20 mm and the distance d 1 between the first point and the outer edge of the prosthesis 12 is d 1 20 mm in the molar portion, A position where a / 2 (a is the buccal tongue diameter of the artificial tooth 38 in the first reference section) deviated from the bottom of the artificial tooth 38 parallel to the first reference line to the palate side or the lingual side and the center of the artificial tooth 38 Letting the intersection of the straight line tied with the contact surface 58 a be the second point, the distance d 2 between the second point and the outer edge of the prosthetic object 12 on the palate side or the lingual side is d 2 20 mm.装着者自身が着脱でき、装着時の快適性をより向上させる。義歯システム１の補綴物１２は歯肉２４に接触する凹状の接触面５８ａを有する。第１基準線を含む第１基準断面において、前歯部では、人工歯３２の最底部から第１基準線と平行に口蓋側又は舌側に３ｍｍずれた位置と人工歯３２の中央とを結んだ直線と、接触面５８ａとの交点を第１の点とすると、第１の点と口蓋側又は舌側における補綴物１２の外縁との距離ｄ１はｄ１≦２０ｍｍであり、かつ、臼歯部では、人工歯３８の最底部から第１基準線と平行に口蓋側又は舌側にａ／２（ａは第１基準断面における人工歯３８の頬舌径）ずれた位置と人工歯３８の中央とを結んだ直線と、接触面５８ａとの交点を第２の点とすると、第２の点と口蓋側又は舌側における補綴物１２の外縁との距離ｄ２は、ｄ２≦２０ｍｍである。
