The invention provides a full-digital design method for synchronously designing a tooth
pile core and a crown by a computer. The method comprises the following steps of: synchronously completing
pile path preparation and full-crown
abutment tooth preparation for an affected tooth to obtain a
silicone rubber impression including the
pile path of the affected tooth and the full-crown
abutment tooth form; modeling an impression scanning piece; designing a personalized pile core, and
cutting and manufacturing a digital pile core by referring to an
STL file; changing the gap of the pile core binder to a negative value at the beginning of the pile core design, so that the designed and output new pile core can smoothly penetrate into the digital model of the remaining tooth body, thereby fitting the new pile core and the remaining tooth body into a whole; and designing a
full crown to achieve full-digital synchronous design of tooth pile cores and crowns. According to the method, the
full crown can be immediately designed on the basis of the digital pile core after the digital pile core is designed by the computer, the pile core, the tooth body and the
full crown are tightly combined at the computer level, the defects of an existing digital pile core technology are overcome, and the purposes of optimizing design steps, shortening the pile core and
crown repair period of a patient and simplifying the manufacturing process of a
technician are achieved.