A method and device for flossing teeth utilizing positionally adjustable floss picks holding strands of dental floss. The floss picks fit into a retainer component and are positioned to insert the floss strands into the interproximal dental spaces between the user's teeth. The position of individual floss picks can be adjusted to achieve the correct fit. The disclosure also teaches a retainer with two sides comprising slotted tracks extending substantially the length of each retainer side. The slots contain floss strands.