A 3D-printing manufacturing method of a tooth model has following steps: preparing dispensable material and energy curing material, scanning a tooth, 3D printing, and removing ambient material. Therefore, a tooth model is manufactured and has a main body and a dental pulp. The main body is made of the hard enetgy curing material and has a hollow pulp cavity formed inside the main body. The dental pulp is filled with the pulp cavity and is made of the soft dispensable material. The present invention can precisely manufacture a tooth model with an actual pulp cavity. Therefore, students can use the tooth model to simulate an endodontic therapy and achieve a better practice.一種牙齒模型三維列印製造方法，其步驟包括：製備犧牲材及能量固化材、掃描牙齒、三維列印、去除包覆材。藉由此方法，可以得到一牙齒模型，其包括：牙齒本體及牙髓，牙齒本體的材質為硬質的能量固化材，於牙齒本體的中間內部形成一中空的牙髓腔；牙髓填充於該牙髓腔內，牙髓的材質為軟質的犧牲材。本發明可以精準地模擬實際上各種不同形狀的牙髓腔，可以讓學生模擬根管治療，達到較佳的練習效果。
