An improved orthodontic appliance is disclosed having information encoded or formed in the base of the appliance, wherein the encoded information increases the total base surface area by an amount that is effective for increasing the adhesion of the appliance to a patient's tooth. In one embodiment, the total base surface area may increase to 140% of what such surface would be without the encoded information. The encoded information may identify: a manufacturer or supplier of the appliance, a part/model number, a location and/or date of manufacturer, a composition of material, a patent number, a logo, etc.