Comparison of transverse changes during maxillary expansion with 4-point bone-borne and tooth-borne maxillary expanders.

Introduction: The purposes of this study were to evaluate and compare the dentoskeletal changes concurrent with 4-point bone-borne and tooth-borne rapid maxillary expanders in growing children.

Methods: The study was conducted with 20 growing girls (ages, 12 ± 0.6 years) with posterior crossbite.