The invention provides an epoxy nanocomposite material for dental therapy, which can be applied to direct or indirect clinical restoration, dental core-post system, and dental brace etc. The epoxy nanocomposite filling material provided by the invention can be polymerized with various curing agents to form the polymer with low shrinkage.本發明係提供一種應用於牙科治療之奈米級高分子環氧複合樹脂材料,可應用於牙科臨床直接間接充填、牙科冠心-根柱系統、牙科矯正器等。本發明所提供之低聚合收縮度並可以各式固化劑進行聚合反應之奈米複合填補材料。