A dental device having a cap and a set of disposable cleaning instruments a user needs for a day or a trip. Each instrument comprising a handle and a portion for cleaning teeth, such as a toothbrush with toothpaste, or a dental flosser, or a toothpick and a handle, or a rupturable dispenser with mouthwash liquid. Each handle and a cap has identical longitudinal cavity with the one open. A part of the first instrument including its cleaning portion is inserted into the cavity of the cap, a part of the second instrument including its cleaning portion is inserted into the cavity of the first instrument, a part of the third instrument including its cleaning portion is inserted into the cavity of the second instrument, and so on. Each cavity and a portion of the instrument inserted into it have at least one set of complementary shapes providing releasable snaps sealing the cavity and holding the engaged instruments and the first instrument and the cap. The device is safe, user friendly and sanitary to carry. Users can assemble the devices with needed type and quantity of instruments for a day or a trip.