Abstract: A dental floss includes a first strand of material twisted with a second strand of material at a twist density of between 60 twists/meter to 300 twists/meter, inclusive.

Abstract: An intraoral device comprises a body including a lingual wall, a labial wall, and a bite surface extending between the lingual wall and the labial wall, wherein the lingual wall, the labial wall, and the bite surface define at least one channel; and a light source coupled to the body and configured to illuminate at least a portion of the at least one channel.

Abstract: A toothbrush, comprises a handle; a head connected to the handle; and a plurality of bristles, respective ones of the plurality of bristles including a first end having a first shape formed by an end-rounding process, a second end having a second shape, and a substantially cylindrical shaft extending between the first end and the second end. The bristles are fastened to the head by a fastener at a fastening point along the shaft, the fastening point being located nearer to the second end than to the first end such that the first end extends from a surface of the head to a first height and the second end extends from the surface of the head to a second height. The first height is greater than the second height.

Abstract: A toothbrush comprises a handle; a head connected to the handle; and a plurality of bristles, respective ones of the plurality of bristles including a first end having a tapered first tip, a second end having a tapered second tip, and a substantially cylindrical shaft extending between the first end and the second end. Respective ones of the plurality of bristles are fastened to the head by a fastener at a fastening point along the shaft, the fastening point being located nearer to the second end than to the first end such that the first end extends from a surface of the head to a first height and the second end extends from the surface of the head to a second height. A difference between the first height and the second height is greater than or equal to 2.25 mm.

Abstract: A dental hygiene device such as an interdental brush includes a handle, a brush head having bristles extending therefrom, and a neck portion extending between the brush head and the handle. The neck portion of the dental hygiene device is configured to provide two modes of operation, a first cleaning mode of operation wherein the brush head contacts the teeth at a first pressure for a given application pressure, and a second cleaning mode of operation wherein the brush head contacts the teeth at a second pressure, greater than the first pressure, for the same given application pressure.

Abstract: A prophylaxis angle that is configured to be attached to and operated by a powered dental handpiece. The prophylaxis angle includes a cup having a first end and a second end. The first end is couplable to the dental handpiece and at least one projection is at the second end of the cup.

Abstract: A prophylaxis angle that is configured to be attached to and operated by a powered dental handpiece. The prophylaxis angle includes a cup having a first end and a second end. The first end is couplable to the dental handpiece and at least one projection is at the second end of the cup.

Abstract: A dental hygiene device such as an interdental brush includes a handle, a brush head having bristles extending therefrom, and a neck portion extending between the brush head and the handle. The neck portion of the dental hygiene device is configured to provide two modes of operation, a first cleaning mode of operation wherein the brush head contacts the teeth at a first pressure for a given application pressure, and a second cleaning mode of operation wherein the brush head contacts the teeth at a second pressure, greater than the first pressure, for the same given application pressure.

Abstract: A dental hygiene device such as an interdental brush includes a handle, a brush head having bristles extending therefrom, and a neck portion extending between the brush head and the handle. At least some of the bristles may have a substantially triangular cross section. The neck portion defines a longitudinal axis and has a first bending stiffness when subject to loading in a first direction that is substantially perpendicular to the axis, and a second bending stiffness when subjected to loading in a second direction that is substantially perpendicular to the axis. The first bending stiffness is less than the second bending stiffness such that the dental hygiene device can be reoriented during use to provide a more gentle or a more robust cleaning to interdental spaces.

Abstract: A method of making interdental cleaners includes forming a slug by extruding material in a direction of extrusion to form a first slug portion having a generally rectangular first cross-section and a second slug portion having a tapering second cross-section that extends away from the rectangular first cross-section. The method also includes stamping the slug substantially perpendicular to the direction of extrusion to form a plurality of cleaner blanks. The stamping forms the first slug portions into handle portions of the cleaner blanks, and the second slug portions into shaft portions of the cleaner blanks. The shaft portions include two pairs of converging surfaces that taper toward each other to define a point. The method also includes attaching cleaning members to the ends of the shaft portions.