Disclosed is a method for producing a pattern for dental casting, which can eliminate deformation when the pattern is removed from a model, and thus can easily produce a dental prosthesis having high matching accuracy. A method for producing a pattern for dental casting according to the present invention comprises using a first separating material having rubber elasticity on a desired region of the surface of a model produced based on an intraoral impression. One separation layer is formed, a second separation layer is laminated on the first separation layer using an oily second separation material, and a polymerization resin is applied on the second separation layer Alternatively, a pattern having a desired shape is produced by building up, and after the polymerization resin is cured, the pattern is removed from the model and used for forming a mold. [Selection] Figure 1【課題】パターンを模型から取り外す際の変形を無くすことができ、ひいては、適合精度が高い歯科用補綴物を容易に作製することを可能とする歯科鋳造用パターンの作製方法を提供する。【解決手段】本発明に係る歯科鋳造用パターンの作製方法は、口腔内印象に基づいて作製された模型の表面の所望の領域の上に、ゴム弾性を有する第一の分離材を用いて第一の分離層を形成し、第一の分離層の上に、油性の第二の分離材を用いて第二の分離層を積層形成し、第二の分離層の上に、重合レジンを塗布ないし築盛して所望の形状のパターンを作製し、重合レジンの硬化後、パターンを前記模型から取り外して鋳型の形成に用いる。【選択図】図１
