Abstract: In an embodiment, a processing device receives image data of a face from an image capture device associated with an augmented reality (AR) display. The processing device processes the image data to a) identify a mouth in the image data, b) identify a dental arch in the mouth, and c) determine a position of the dental arch relative to a position of the AR display. The processing device determines a treatment outcome for the dental arch, generates a visual overlay comprising an indication of the treatment outcome at the determined position of the dental arch, and outputs the visual overlay to the AR display, wherein the visual overlay is superimposed over a view of the dental arch on the AR display.

Abstract: A device for carrying a person and propelling a shopping cart. The device includes an easily detachable cross-bar for coupling a bicycle-like device to a shopping cart. The bicycle-like device includes a seat and pedals/sprocket assembly for propelling the shopping cart. The bicycle-like device includes dual rear wheels which enhances the stability and maneuverability of the coupled device.