Distalization of Maxillary Molars using Clear Aligners without Auxiliaries

Abstract

Background and aims. Clear aligners are used frequently to treat Class II malocclusions when distalization of the upper first and second molars is an important option. There is a little evidence to support the predictability of these movements and the outcome that doctors have predicted may not be achieved, particularly in the absence of auxiliaries attached to teeth needed to be moved. The aim of this study was to evaluate the possibility of distalization with transparent splints only. Methods. 3D software was used to superimpose digital models of pre-treatment, post-treatment, and virtual plan (ideal post-treatment) measurements of a 24-year-old patient. The software from B&B Dental was used to calculate the achieved tooth movement. Results. The total distal displacement for the first and second molars was 2.15 mm. Overlays could not achieve 100% ideal result after processing; Therefore, improvement planning is often required. Conclusion. Clear aligners can be considered an attractive option for distalization of first and second molars.