Umqeqeshi wamazinyo we-Dental Orthodontic Alignment Teeth Trainer A2 wenziwe nge-polyurethane eqinile, futhi ilungele ukutholwa okuncane. Impahla eqinile ye-A2 yenzelwe ukuthi isetshenziswe ngemuva kwe-A1, futhi inamandla amakhulu okuqondanisa emazinyweni angaphandle.