An artificial root for dental implantation and a method for manufacturing the artificial root are provided. The artificial root comprises a neck portion, an end portion opposite the neck portion, a body portion and a multiplex thread structure which is formed on the body portion. The multiplex thread structure comprises a first thread and a second thread in which the first thread forms a root portion with a specific first width for the second thread, which has a crest portion of a specific second width, to be accommodated into the root portion. The multiplex thread structure is partially configured in such a way that the second width of the crest portion is simultaneously increased when the first width of the root portion is gradually increased.本發明提供一種用於植牙之人工牙根及製造該人工牙根之方法。人工牙根包含一頸部、與頸部相對之一端部、一本體部及形成於本體部之一多重螺紋結構。多重螺紋結構包含一第一螺紋及一第二螺紋,其中第一螺紋形成具有一特定第一寬度之一谷部,以使第二螺紋容置於谷部,第二螺紋包含具有一特定第二寬度之一峰部。多重螺紋結構之局部配置係當谷部之第一寬度逐漸增加時,峰部之第二寬度同時增加。1‧‧‧人工牙根2‧‧‧頸部3‧‧‧本體部31‧‧‧第一螺紋311‧‧‧谷部32‧‧‧第二螺紋321‧‧‧峰部322‧‧‧溝槽4‧‧‧端部6‧‧‧連接結構D1‧‧‧第一寬度D2‧‧‧第二寬度X‧‧‧軸向
