A system of manufacturing an orthodontic wire, the system comprising: a teeth data obtaining part configured to obtain present teeth data of a patient, the present teeth data being indicative of one or more of a position or an orientation of one or more teeth included in the present teeth data before or after an orthodontic process begins; a simulating part configured to generate final teeth data, the final teeth data being indicative of one or more of a goal position or a goal orientation of the one or more teeth included in the present teeth data upon completion of the orthodontic process; a calculating part configured to compare a predetermined threshold value to a compared value, the compared value being a difference between the present teeth data (11,12) and the final teeth data, and the predetermined threshold value being a maximum allowable difference between the present teeth data (11,12) and the final teeth data, serving as a reference value for determining whether the orthodontic process is completed; and a wire manufacturing part for selectively manufacturing the wire, wherein: (a) based on a determination that the compared value is greater than the predetermined threshold value, the wire manufacturing part is configured to manufacture the wire for a step of the orthodontic process for causing one or more of the position or the orientation of the one or more teeth included in the present teeth data to be changed, and (b) based on a determination that the compared value is less than the predetermined threshold value the wire manufacturing part is configured to manufacture the wire for a dentition maintenance process for causing one or more of the position or the orientation of the one or more teeth included in the present teeth data to be maintained; and a correcting part configured to generate a compensation algorithm that considers an elastic restoring force of the wire only for the dentition maintenance process, when the wire for the dentition maintenance process of (b) is manufactured, considering that the wire having relatively larger elastic restoring force is used in the dentition maintenance process, compared to the wire used in the orthodontic process. a teeth data obtaining part configured to obtain present teeth data of a patient, the present teeth data being indicative of one or more of a position or an orientation of one or more teeth included in the present teeth data before or after an orthodontic process begins; a simulating part configured to generate final teeth data, the final teeth data being indicative of one or more of a goal position or a goal orientation of the one or more teeth included in the present teeth data upon completion of the orthodontic process; a calculating part configured to compare a predetermined threshold value to a compared value, the compared value being a difference between the present teeth data (11,12) and the final teeth data, and the predetermined threshold value being a maximum allowable difference between the present teeth data (11,12) and the final teeth data, serving as a reference value for determining whether the orthodontic process is completed; and a wire manufacturing part for selectively manufacturing the wire, wherein: (a) based on a determination that the compared value is greater than the predetermined threshold value, the wire manufacturing part is configured to manufacture the wire for a step of the orthodontic process for causing one or more of the position or the orientation of the one or more teeth included in the present teeth data to be changed, and (b) based on a determination that the compared value is less than the predetermined threshold value the wire manufacturing part is configured to manufacture the wire for a dentition maintenance process for causing one or more of the position or the orientation of the one or more teeth included in the present teeth data to be maintained; and (a) based on a determination that the compared value is greater than the predetermined threshold value, the wire manufacturing part is configured to manufacture the wire for a step of the orthodontic process for causing one or more of the position or the orientation of the one or more teeth included in the present teeth data to be changed, and (b) based on a determination that the compared value is less than the predetermined threshold value the wire manufacturing part is configured to manufacture the wire for a dentition maintenance process for causing one or more of the position or the orientation of the one or more teeth included in the present teeth data to be maintained; and a correcting part configured to generate a compensation algorithm that considers an elastic restoring force of the wire only for the dentition maintenance process, when the wire for the dentition maintenance process of (b) is manufactured, considering that the wire having relatively larger elastic restoring force is used in the dentition maintenance process, compared to the wire used in the orthodontic process.