PROBLEM TO BE SOLVED: To provide a means that can suppress decrease of adhesive strength even after a long period of time since operation in cavity repairing of a tooth.SOLUTION: This dental cavity repairing pretreatment agent contains a hesperidin group. The hesperidin group is constituted by at least one selected from the group consisting of hesperidin, hesperetin and sugar-converting hesperidin.COPYRIGHT: (C)2012,JPO&INPIT【課題】歯牙の窩洞修復において、施術から長期間経過した後であっても、接着強度が低下するのを抑制することができる手段を提供すること。【解決手段】ヘスペリジン類を含有する歯科用窩洞修復前処理剤。【選択図】なし