A system and method is provided that allows alternative messaging routes when Session Initiation Protocol message delivery fails. Also at route search, an optimal route is found more accurately. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group. The process then continues by obtaining at least two orientation reference points relating to the orthodontic structure. Finally, the rollers are polished and severed to form appropriate dimensional shapes.