PROBLEM TO BE SOLVED: To provide a relatively low cost dental pulp model used as training material for dental root canal treatment, capable of providing integral training of a crown cutting process, a pulp bleeding cleaning process, pulpectomy and root canal length measurement, and shortening self-learning time by providing continuous training of the treatment processes of the root canal treatment.SOLUTION: In a cylindrical high-functional dental pulp model, a crown 3 is formed of an artificial tooth for denture and a pulp part 2 is made of transparent epoxy resin, in order to reproduce a hardness difference between the crown and the pulp part. Further, the pulp part is made waterproof whose shape is cylindrical and which is covered with a rubber waterproof cap, and is used after being lightly pressed and fixed in a working stand 1. Dummy blood enclosed inside the dental pulp model and a joint space of the working stand are filled with a substance or a physiological saline solution having electric properties of the same level with a human body and turned into an electrically conducted state, thereby making electric measurement of a root canal length possible.COPYRIGHT: (C)2015,JPO&INPIT【課題】歯科の根管治療の実習教材において使用される歯髄模型であって、歯冠の切削工程、歯髄からの出血洗浄工程、抜髄、根管長の測定までを一貫して実習訓練でき、根管治療の治療工程を連続的に実習が出来て自習時間の短縮を可能とする、比較的安価な歯髄模型を提供する。【解決手段】歯冠3に義歯用人工歯を利用して、歯髄部2は透明なエポキシ樹脂を使用することで歯冠と歯髄部の硬度差を再現しており、また歯髄部を円柱状としてゴム製の防水キャップを被せる防水構造とした上で、作業スタンド1に軽く圧入固定して使用する。歯髄模型内部に封入した模擬血液や作業スタンドの接合空間を人体と同程度の電気的特性を示す物質や生理食塩水などで満たし電気的な導通状態として、電気的根管長の測定までを可能とする。【選択図】図3
