Abstract
Clear Aligner treatment system is very useful in the case where orthodontic treatment with conservative multi bracket system can not be acceptable because Clear Aligner's system is simple and esthetic. e recommend teeth whitening to the patients who have Clear Aligner treatment, because it is convenient to use Clear Aligner as whitening tray while the patients are wearing it for over 17 hours a day. Usually, it is necessary to use as whitening tray for two hours a day continuously and whitening period is two weeks. This system has three merits as follows. First, the whitening can be carried out with the orthodontic treatment simultaneously. Second, the cost performance is useful for the patients because it is not necessary to make the charged whitening tray. Third, the home whitening can decrease the frequency of visiting the dental office as compared with office whitening. The patient's satisfaction progressed so much with above three merits. I will report some cases that were treated by this system with the questionnaire concerning this treatment system we made.
