PROBLEM TO BE SOLVED: To have an excellent antibacterial effect and maintain the antibacterial effect.SOLUTION: After sterilization of an artificial tooth by ultraviolet light radiation, an antimicrobial object material is subjected to induction heating or ultrasonic irradiation while being immersed into aqueous solution silver at a room temperature, whereby a nano silver particle is discrete and carried by the antimicrobial object material.SELECTED DRAWING: Figure 5【課題】優れた抗菌効果を有し、且つ、抗菌効果が持続することができるようにする。【解決手段】義歯を紫外線で殺菌した後に、常温の銀水溶液中に、抗菌対象物質を浸漬した状態で誘導加熱、又は超音波照射を行うことにより、ナノ銀粒子を離散して前記抗菌対象物質に担持させる。【選択図】図５
