1. Rapid expansion of the maxillary dental arch and nasal cavity by opening the midpalatal suture;Haas AJ;Angle Orthod,1961
2. A hygienic appliance for rapid expansion;Biederman W;J Pract Orthod,1968
3. Palatal expansion: Just the beginning of dentofacial orthopedics
4. Long‐term posttreatment evaluation of rapid palatal expansion;Haas AJ;Angle Orthod,1980
5. Evaluation of the midpalatal suture during rapid palatal expansion in children: a CT study;Da Silva Filho OG;J Clin Pediatr Dent,2005