A dental implant, comprising a somatic part (1) implanted inside the alveolar bone, an abutment (2) for mounting an artificial denture, and a neck portion (3) connecting the somatic part (1) to the abutment (2), the side surface and the bottom surface of the somatic part (1) being rough surfaces, the neck portion (3) being of a truncated cone structure tapered in a direction towards the root thereof, and the radial dimension of the root end of the neck portion (3) being smaller than the radial dimension of the upper end of the somatic part (1), such that a part of the upper end of the somatic part (1) that is not occupied by the root end of the neck portion (3) forms a flat surface (4) in a horizontal direction, the flat surface (4) being a rough surface. The platform surface (4) on the upper surface of the somatic part (1) of the dental implant is designed as a rough surface, and the alveolar bone is guided to extend and grow onto the platform surface (4), reducing micro-gaps and micro-movement between every two elements in a traditional dental implant and enhancing stability after implanting the dental implant, thereby improving the success rate of operations and alleviating the patients pain, having a very high practical value.Linvention concerne un implant dentaire, comprenant une partie somatique (1) implantée à lintérieur de los alvéolaire, un pilier (2) pour le montage dune prothèse, et une partie collet (3) reliant la partie somatique (1) au pilier(2), la surface latérale et la surface inférieure de la partie somatique (1) étant des surfaces rugueuses, la partie collet (3) se présentant sous la forme dune structure tronconique effilée en direction de sa racine, et la dimension radiale de lextrémité racine de la partie collet (3) étant inférieure à la dimension radiale de lextrémité supérieure de la partie somatique (1), de sorte quune partie de lextrémité supérieure de la partie somatique (1) qui nest pas occupée par lextrémité racine de la partie collet (3)
