Abstract: A multi-tooth flosser allows a user to floss simultaneously several spaces between the user's teeth. In an embodiment, the device includes an assembly of multiple pieces, allowing the device to be adjustable and adapted to the mouths of different users. The user adjusts the placement of the stringed material through movement of floss receivers along an arched groove, with the dental floss being attached to the floss receivers. In this way, the stringed material is aligned with the positions of the spaces between the user's teeth. An impression of the user's teeth made in a cavity filled with impressionable material into which the user bites guides the adjustment of the floss receivers.