The utility model relates to a brush structure between teeth.Including a brush body,A plurality of fan-shaped flanges,A plurality of conical protrusions and a plurality of notches；The main system of inter brush consists of a long rod formed by a brush part and a brush end edge.A plurality of fan-shaped flanges are arranged on the surface of the brush part.A plurality of conical protrusions and a plurality of notches；Wherein, the long axis direction of the brush part of the brush body extending to the end edge of the brush is set as y-axis.Set the direction of the short axis of the crosscutting brush part to the X axis.Will be associated with the x-axis,When the vertical direction of the y-axis is orthogonal to the z-axis；The plurality of fan-shaped flanges,The plurality of notches are arranged on the XY plane in a symmetrical or asymmetrical manner.The conical protrusions are arranged on the YZ plane symmetrically or asymmetrically.The convex group formed by the arrangement of one conical protrusion and one fan flange is defined as a first convex group.And the convex group formed by each (n + 1) conical protrusion with n conical protrusions between the fan-shaped flange and the fan-shaped flange is defined as a second convex group.When n is a natural number；There are at least one first convex group and at least one second convex group on the inter brush part.At least one of the plurality of notches is arranged in the XY plane and is located between the first convex group and the second convex group.Thus, it can effectively clean the food residue between teeth and the plaque on the tooth surface.一種牙間刷結構，包括一間刷主體、複數扇狀凸緣、複數錐狀突出件以及複數凹口；間刷主體係由一間刷部與一間刷端緣構成之長桿狀體，在該間刷部之表面上係分布有複數個扇狀凸緣、複數個錐狀突出件以及複數個凹口；其中將該間刷主體之該間刷部往該間刷端緣延伸之長軸方向設為Y軸，將橫切該間刷部之短軸方向設為X軸，將與該X軸、該Y軸皆成正交之垂直方向設為Z軸時；該複數個扇狀凸緣、該複數個凹口以對稱或不對稱方式任意排列於XY平面上，該複數個錐狀突出件以對稱或不對稱方式任意排列於YZ平面上；將一個該錐狀突出件與一個該扇狀凸緣依序配置形成的凸狀物群定義為一第一凸件群；以及將每(n+1)個該錐狀突出件該扇狀凸緣之間配置n個該扇狀凸緣錐狀突出件形成的凸狀物群定義為一第二凸件群，n為自然數時；在該間刷部上具有至少一個第一凸件群及至少一個第二凸件群；在該複數個凹口之中至少有一個係被配
