A kind of artificial tooth root and implant, which includes: a main part, ties up to an outer surface and forms a gradual screw thread, and has an arc-shaped end, and the gradual screw thread is in one of corresponding implantation one alveolar bone of what spongy bone； And a coronal, tie up to an outer surface and form a ring shaped thread, and there is a connection slot, the ring shaped thread to one of corresponding implantation what alveolar bone cortex bone at. Bite force not only can be dispersed in this creation, reduces bone-loss, can also solve the problems, such as that stress crosses what concentration, the risk of nerve is injured when reducing implantation, and improve the positioning of implant implantation, with the success rate of effective promotion operation.一種人工牙根及植體，該人工牙根包含：一主體部，其係在一外表面形成一漸進式螺紋，且具有一圓弧形之端部，該漸進式螺紋用以對應植入於一齒槽骨之一海綿骨內；及一冠狀部，其係在一外表面形成一環狀螺紋，且具有一連接槽孔，該環狀螺紋用以對應植入於該齒槽骨之一皮質骨處。本創作不但可分散咬合力，减少骨質流失，還可解決應力過於集中之問題，降低植入時傷害神經之風險，並且改善植體植入之定位，以有效提升手術之成功率。
