The Effectiveness of Acrylic and Clear Aligners in the Treatment of Anterior Crossbite in Children

In this intervention, clear aligners were digitally designed using three-dimensional models for the upper jaw. Attachments were applied to the patients, specifically placed on the incisors exhibiting a crossbite relationship and on the permanent first molars in the posterior region. The series of clear aligners were replaced every 10 days. The aligners were used full-time, except during meals and tooth brushing.

In this intervention, a custom-made labiolingual spring Hawley appliance was designed for the upper jaw. It included two Adams clasps, a vestibular arch, and an active labiolingual spring positioned on the palatal side of the incisor in crossbite. The spring was activated every 10 days. The appliance was used full-time, except during meals and tooth brushing.