Dental tray with encapsulated fluid

A dental tray with encapsulated teeth applicator fluid comprising:

• a substantially rigid arched tray frame of a monolithic structure, having a front end, a rear end opposing the front end, a tray length separating the front and rear ends, a bottom surface spanning the tray length, an outer sidewall spanning the tray length, with an upper edge, and with an inner sidewall surface with a substantially planar portion extending downwardly directly from the upper edge of the outer sidewall, an inner sidewall spanning the tray length, with an upper edge, and with an inner sidewall surface disposed at an angle of 140°-150° from the bottom surface of the tray frame and with a substantially planar portion extending downwardly directly from the upper edge of the inner sidewall, the inner sidewall surfaces, including the substantially planar portions, of the outer sidewall and the inner sidewall and the bottom surface of the tray frame defining a tray channel spanning the tray length, the tray channel having a teeth applicator fluid housed therein, and the upper edges of the outer and inner sidewalls define an upper perimeter tray edge;
• and
• a flexible cover free of any apertures and of a thin-walled material selectively removably and directly coupled to the upper edges of the outer and inner sidewalls of the tray frame in a watertight sealed configuration with an adhesive material interposed between the flexible cover and upper edges of the outer and inner sidewalls to encapsulate the teeth applicator fluid and of a shape that contours the upper perimeter tray edge, the flexible cover selectively removable to expose the upper edges of the outer and inner sidewalls of the tray frame.