Abstract: An archwire used during the course of orthodontic treatment has four generally flat sides that are arranged in the general shape of a rectangle. The four sides are connected by curved surfaces having a radius of curvature that is substantially larger than the corners of conventional archwires. The cross-sectional shape of the archwire facilitates insertion and removal of the archwire in orthodontic appliances such as brackets and also tends to reduce resistance to sliding movement of the appliances along the archwire.

Abstract: A disposable waterless tooth brushing assembly, and a method for its manufacture, comprising a diminutive toothbrush; a non-foaming saliva-activated teeth-cleaning agent pre-applied to the toothbrush bristles; a small moistened disposable towel for use after teeth cleaning; and a compact, lightweight, two-layer, heat-sealed packaging container for pre-use sanitary storage of the toothbrush and towel. For efficiency and reduced cost, several assemblies would be attached together during manufacture, and made readily separable for individual use.