Dental implant fabrication and insertion methods and a personalized dental implant for use in such methods. Such a personalized dental implant is prefabricated by a computer-operated milling machine using a computer model generated using digital images taken of a dental patient's natural tooth in situ. After the natural tooth is extracted from the dental patient's mouth, the personalized dental implant is immediately inserted into the socket created by the extraction. Insertion of this dental implant immediately after the extraction obviates the need for multiple oral surgeries, avoids delicate structures, and is less invasive. Moreover, since this dental implant is custom fitted for the socket, osseointegration is expedited and the risk of bone collapse is reduced.