The present invention relates to a dental implant, in which artificial teeth can be firmly supported against external pressure applied in a lateral direction, and the external pressure can be effectively distributed over the whole surface of a fixture so as to maximize shock buffering effects, and which can be easily operated and has significantly augmented durability to thus elongate the life of the implant. The dental implant comprises: a fixture which has an upper portion with an axial hole and which is implanted on a jaw bone and an abutment including a lower tightening shaft inserted into a guide hole of the fixture and tightened to the fixture, and an upper mount part on which a prosthesis is mounted. The lower tightening shaft of the abutment includes a shock buffer part having at least one horizontal through-hole. According to the dental implant of the present invention, external force applied to the abutment can be effectively distributed to significantly structurally reinforce a tightening shaft connection part of the abutment, and the implant can be firmly supported against the external pressure applied to the implant in a lateral direction to significantly augment the durability of the tightening shaft connection part, thus dramatically elongating the life of the implant.La présente invention concerne un implant dentaire, dans lequel des dents artificielles peuvent être supportées fermement contre une pression externe appliquée dans une direction latérale, et la pression externe peut être distribuée efficacement sur lensemble de la surface dun dispositif de fixation afin de maximiser les effets damortissement des chocs, et qui peut être opéré facilement et présente une durabilité significativement augmentée afin de prolonger la durée de vie de limplant. Limplant dentaire comprend : un dispositif de fixation qui comprend une partie supérieure munie dun trou axial et qui est implanté sur un os de mâchoire et une butée comprenant un arbre de serrage inféri
