The invention discloses a prosthesis arrangement for using in prosthetic dentistry, comprising a dental implant (104) inserted in a jawbone (103), a first abutment part (120) inserted into the implant (104), a second abutment part (110) mounted on the first abutment part (120) along a second surface area (120b) of the first part (120), a first locking section (126) having isogonic surface, and said second surface area (120b) of the first part (120) is provided with a second locking section (122) having isogonic surface with an angular spacing different to the angular spacing of the first locking section (126)； and the isogonic surface of at least one of the locking sections (122,126) is formed with a prime number of angles being greater than ten.
