The utility model artificial tooth root, it is made of in the what coarse-pitch thread section plural thick thread, and each thick thread has a upper tooth cutting edge of a knife or a sword, one with the upper tooth cutting edge of a knife or a sword be in oppositely arranged lower tooth cutting edge of a knife or a sword, and one set the end face being set in parallel between the what upper and lower tooth cutting edge of a knife or a sword and with the body of rod, while the lower tooth cutting edge of a knife or a sword and the angle of the end face be 20 ~26 degree and the upper tooth cutting edge of a knife or a sword and the angle of the end face be 10 ~20 degree, locking part is cooperated to design again, when the artificial tooth root may make to lock alveolar bone, except the artificial tooth root can be dispersed to the stress of the alveolar bone, the consume for reducing the alveolar bone is outer, the contact surface of the artificial tooth root Yu the alveolar bone more can be improved simultaneously, increase the initial stage stability of operation Hou, promote the artificial tooth root that can consolidate in conjunction on the what alveolar bone.本新型人工牙根，其在於該粗螺紋段係由複數粗螺牙組成，且該每一粗螺牙具有一上牙鋒，一與該上牙鋒呈反向設置之下牙鋒，以及一設於該上、下牙鋒間且與該桿體呈平行設置之端面，同時該下牙鋒與該端面之夾角為20~26度，以及該上牙鋒與該端面之夾角為10~20度，再配合鎖合部設計，可使得該人工牙根鎖入齒槽骨時，除可分散該人工牙根對該齒槽骨之應力，減少該齒槽骨之耗損外，同時更可提高該人工牙根與該齒槽骨之接觸面，增加手術後之初期穩定度，促使該人工牙根能穩固結合於該齒槽骨上。
