This invention relates to a method of digital filing and fabrication for dental prosthodontics and prosthesis, mainly comprising the steps of: scanning and establishing a first digital model file, optical positioning, and performing cutting treatment before surgery, and establishing a second digital model file for the cutting process using the calculation of the physical model to reversely establish an autologous crown model file of a patient and processing and fabricating a fixed prosthesis meeting the requirement of the patient combined with the second digital model file and the autologous crown model file, so as to make the inner layer structure of the fixed prosthesis crown tightly combined with an abutment and determine whether to keep the appearance of the original crown according to the needs. The digital model file of the tooth model according to the aforementioned method can be used for the teaching and training of the trainees.一種牙科補綴及贗復體數位建檔與製作之方法,其主要包括以下步驟:手術前掃描建立第一數位模型檔,光學定位及車削治療,且將車削過程建立第二數位模型檔;實體模型演算反向建立病患的自體牙冠模型檔;及加工製作固定式義齒,結合該第二數位模型檔及自體牙冠模型檔製作符合病患所需的固定式義齒,使固定式義齒的牙冠內層結構可與支台體密切結合,且可視需要決定要保有原有牙冠外觀。藉由教學數位模型檔的牙齒模型依前述方法,可用於被訓練者的教學訓練。110...手術前掃描121...第一數位模型檔122...第二數位模型檔130...光學定位及車削治療140...實體模型演算150...自體牙冠模型檔200...製作固定式義齒