Problem to be solved: to provide an esthetic mouthpiece which is easy to fit to the teeth of the user and can be formed thinly, to reduce the feeling of discomfort of the user at the time of installation, and to have a natural and aesthetic appearance at the time of mounting.A dental model model manufacturing process for making the tooth model Model 70 of the user andA resin sheet covering process to cover the outer surface of the tooth string model in a softened state of the thermoplastic resin sheet 11 andA resin sheet suction step for attracting the thermoplastic resin sheet to the outer surface of the tooth string model, andResin sheet curing process for curing thermoplastic resin sheet andThe process of fixing the molding material for fixing the molding material 12 to the outer surface of the thermoplastic resin sheetA molding mouthpiece 10 is produced by shaping a molding material and forming a dental material surface forming a molding material.Diagram【課題】使用者の歯列にフィットさせやすく、薄めに形成することもでき、装着時の使用者の違和感を軽減することや、装着時の見た目が自然で審美性が高い審美用マウスピースを提供する。【解決手段】使用者の歯列模型７０を作製する歯列模型作製工程と、熱可塑性樹脂シート１１を軟化した状態で歯列模型の外面に被せる樹脂シート被覆工程と、熱可塑性樹脂シートを吸引して歯列模型の外面に密着させる樹脂シート吸引工程と、熱可塑性樹脂シートを硬化させる樹脂シート硬化工程と、造形材料１２を熱可塑性樹脂シートの外面に固着させる造形材料固着工程と、造形材料を整形して歯列表面を造形する造形材料整形工程とを経て審美用マウスピース１０を製造する。【選択図】図６
