INTRODUCTION
crossbite, NRS, transverse deficiency, pain
Rapid maxillary expansion (RME) is a procedure that aims to correct maxillary
transverse deficiency and posterior crossbite by opening the midpalatal suture. This
technique has proven effective in orthodontics, and is commonly used in clinical
practice.Wilmes et al.Patients undergoing RME with conventional appliances often report discomfort, pain,
and even functional limitations.Several methods for measuring pain intensity have been described in the literature,
and the pain numerical rate scale (NRS) has proven to be more appropriate due to the
ease of clinical application and patient understanding.