Abstract: A multi-tooth flosser is disclosed. The multi-tooth flosser comprises a length of dental floss and a tray having a wall defining an interior and an exterior. The wall includes a top and a bottom opposite the top. The tray has receivers formed in the wall proximate the top and configured to receive and retain the dental floss. The tray is configured to fit inside a mouth having at least one tooth. The interior of the tray receives at least one tooth. The dental floss disposed in the tray is configured to simultaneously pass between inter-proximal spaces of the at least one tooth.