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ePaper created 2017-09-06, 09:11:22 | version 1.38.0
case report maxillary molar distalisation with aligners Fig. 2 Fig. 3 (Figs. 2 & 3).11 The patient was instructed to wear the aligners and the Class II elastics for at least 21 h per day. Furthermore, she used the Accele- Dent device for 20 min per day for the duration of the orthodontic treatment. Aligners were changed every two weeks until the maxillary second molars were fully distalised, then every ten days until the first molars were in their final position and then every seven days until the end of treatment. The ClinCheck (Align Technology) software demonstrated the need for 63 aligners to obtain the desired results with the prescribed sequence of stages, attachments and Class II elastics. Thus, the estimated treatment time was approximately 30 months. However, because the patient had chosen to use AcceleDent, the case was finalised in 18 months of treatment without any additional aligners with respect to the initial prescribed 63 (Figs. 4a–c, 5a–c). The clinical results were excellent and re- vealed a final molar and canine Class I relation- ship with functional overbite and overjet, and the profile of the lower third of the face was highly improved. The superimposition of the cephalo- metric tracings revealed a maxillary molar dis- talisation of about 6 mm without significant tip- ping and excellent control of the buccolingual 28 ortho 2/2017