Recruitment of patients treated using rapid maxillary expanders with dental anchorage, with pre-treatment panoramic X-rays and post-treatment models. In the initial phase of the study, the objective is to correlate the radiographic inclination of the upper permanent premolars in the pre-treatment orthopantomography to the expansion obtained at the end of therapy using a palatal expander with dental anchorage.
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Number of required activation for maxillary expansion
Timeframe: T0 (pre-treatment casts/x-rays) and T1 (post-treatment casts/x-rays)