A toothpick and interdental brush combination comprises a case comprising a lengthwise groove on a side, first and second end openings both in communication with the groove; and an assembly slidable in the case, the assembly comprising a projected trigger member, a first body member extended from the trigger member toward the first end, an interdental brush integrally formed with the first body member at first end, a second body member extended from the trigger member toward the second end, and a toothpick integrally formed with the second body member at the second end. In a storage state both the toothpick and the interdental brush are concealed in the case, or in a use state of the interdental brush or the toothpick a pushing of the trigger member toward the first or the second end causes the interdental brush or the toothpick to project from the first or the second opening respectively.