The invention relates to a dental implant (1,2) for supporting a dental prosthesis. The implant comprises a body having a longitudinal axis (13), a proximal end (3), a distal end (apex) (4) and an outer threaded fixation surface (5) extending between the proximal end and the distal end of the implant body. The outer threaded fixation surface (5) comprises a first parallel walled surface portion (6) on the upper, proximal part of the implant body and a second tapered surface portion (7) on the lower, distal part of the implant body. The first parallel walled surface (6) is formed by the tips (11) of the thread profile (i.e. an imaginary line through the tips (11) of the thread is parallel to the longitudinal axis (13) of the implant body) while at least a part (LI) of the thread bottoms (14) are forming a slightly conical thread run-out design (i.e. an imaginary line (15) through the thread bottoms (14) is forming an angle (a) to the longitudinal axis (13) of the implant body). That the first parallel walled surface (6) has a slight conical inner thread run-out design is an important feature of the invention as this design provides a gentile gradual condensation of the thread tips in the bone during insertion of the implant into the bone. During the final stage of the implant insertion the slight inner conical thread run-out design is gradually and gently condensing the thread tips in the bone offering an excellent primary stability in all bone qualities. Due to a very limited condensing bone-volume the required torque "energy" is very limited which reduces the risk for overheating and over-compressing the bone. At the same time the original parallel walled body thread-design and pitch-height, formed by the outer tips of the thread, is preserved. The original parallel walled macro-design and a typically 0,6 mm pitch height has more than 50 years of documented long-term reliability and clinical success.
