A dental preparation delivery system includes a soft malleable wax sealing strip bonded to a wax base strip. The peripheral outline of a model dentition extends into the thickness of the sealing strip to form a receptacle. A border of the sealing strip completely surrounds the outline. The receptacle is filled with a dental preparation to be administered and the sealing strip is overlaid with a film. In use, the film is removed, the system is bent to an arch shape and the outline is registered with the users buccal dentition. Lateral force is applied in a lingual direction against the base strip to reshape the sealing strip for sealing contact of the border against the periphery of the users buccal dentition, while leaving the preparation in contact with remaining buccal surfaces.