The present invention relates to a single-body type dental implant fixing structure, in which the dental implant is approximately in a cylindrical shape, and has a supporting base at its top end and an implanted portion at its lower end. The implanted portion is configured with a threaded portion. The present invention is characterized in that the exterior of the implanted portion of dental implant is at least configured with a concave cutting slot, which is spirally extended from the bottom to the top of the threaded portion, such that the bonding of the threaded portion after being screwed into alveolar bone may be tighter, and the bone chips cut from the alveolar bone can be collected. Thus, the present invention may enhance the implanting stability of the dental implant into the alveolar bone and prevent the occurrence of stress shielding effect.本發明係有關一種單體式植牙體固定結構,其中該植牙體係概呈圓柱狀,其頂端具有一支檯座,下端具有一植入部,該植入部設有一螺牙部;其主要特徵,係為在植牙體之植入部的外側至少設有一從該螺牙部之底端螺旋地延伸到上端的凹狀剖溝;藉以使得螺牙部鎖入到槽骨以後的結合更為緊密,並可收集槽骨切削的骨屑,而達到增進植牙體植入槽骨的穩定性,避免產生「應力遮蔽」效應的功效。10‧‧‧人工植牙體11‧‧‧支檯座111‧‧‧溝槽12‧‧‧植入部13‧‧‧螺牙部14‧‧‧頸部15‧‧‧環狀部20‧‧‧贗復齒21‧‧‧套合件30‧‧‧槽骨31‧‧‧皮質骨40‧‧‧凹狀剖溝
