Evaluation of the Soft Tissue Changes after Rapid Maxillary Expansion Using a Handheld Three-Dimensional Scanner: A Prospective Study

Facial soft tissue esthetics is a priority in orthodontic treatment, and emerging of the digital technologies can offer new methods to help orthodontist toward an esthetic outcome. This prospective study aimed assess changes face after six months retention following Rapid Maxillary Expansion (RME). The sample consisted 25 patients (13 females, 12 males, mean age: 11.6 years) who presented with unilateral or bilateral posterior crossbite requiring RME, which was performed Hyrax expander. 3D facial images were obtained before treatment (T0) at end six-month period (T1) using structured-light handheld scanner. Linear angular measurements deviation analyses done for morphological regions face. Significant various areas nasal upper lip observed. Based on results within limitations study, RME expander significant period.