[1. Boysen B, La Cour K, Athanasiou AE, Gjessing PE. Threedimensional evaluation of dentoskeletal changes after posterior crossbite correction by quad-helix or removable appliances. Br J Orthod 1992;19:97-107.10.1179/bjo.19.2.97]Search in Google Scholar
[2. Erdinç AE, Ugur T, Erbay E. A comparison of different treatment techniques for posterior crossbite in the mixed dentition. Am J Orthod Dentofacial Orthop 1999;116:287-300.10.1016/S0889-5406(99)70240-4]Search in Google Scholar
[3. Sandikçioğlu M, Hazar S. Skeletal and dental changes after maxillary expansion in the mixed dentition. Am J Orthod Dentofac Orthop 1997;111:321-7.10.1016/S0889-5406(97)70191-4]Search in Google Scholar
[4. Shundo S, Kobayashi Y, Endo T. Short-term treatment effects of quad-helix on maxillomandibular expansion in patients with maxillary incisor crowding. Odontology 2012;100:76-86.10.1007/s10266-011-0028-z]Search in Google Scholar
[5. Kobayashi Y, Shundo I, Endo T. Treatment effects of quad-helix on the eruption pattern of maxillary second molars. Angle Orthod 2012;82:676-81.10.2319/072111-459.1]Search in Google Scholar
[6. Hermanson H, Kurol J, Rönnerman A. Treatment of unilateral posterior crossbite with quad-helix and removable plates. A retrospective study. Eur Journal Orthod 1985;7:97-102.10.1093/ejo/7.2.97]Search in Google Scholar
[7. Kecik D, Kocadereli I, Saatci I. Evaluation of the treatment changes of functional posterior crossbite in the mixed dentition. Am J Orthod Dentofacial Orthop 2007;131:202-15.10.1016/j.ajodo.2005.03.030]Search in Google Scholar
[8. Frank SW, Engel GA. The effects of maxillary quad-helix appliance expansion on cephalometric measurements in growing orthodontic patients. Am J Orthod 1982;81:378-89.10.1016/0002-9416(82)90075-6]Search in Google Scholar
[9. Cozza P, Giancotti A, Petrosino A. Rapid palatal expansion in mixed dentition using a modified expander: a cephalometric investigation. J Orthod 2001;28:129-34.10.1093/ortho/28.2.12911395527]Search in Google Scholar
[10. Chung CH, Font B. Skeletal and dental changes in the sagittal, vertical, and transverse dimensions after rapid palatal expansion. Am J Orthod Dentofacial Orthop 2004;126:569-75.10.1016/j.ajodo.2003.10.03515520689]Search in Google Scholar
[11. Cozza P, Baccetti T, Franchi L, McNamara JA Jr. Treatment effects of a modified quad-helix in patients with dentoskeletal open bites. Am J Orthod Dentofacial Orthop 2006;129:734-9.10.1016/j.ajodo.2006.02.00416769491]Search in Google Scholar
[12. Cozza P, Mucedero M, Baccetti T, Franchi L. Treatment and posttreatment effects of quad-Helix/crib therapy of dentoskeletal open bite. Angle Orthod 2007;77:640-5.10.2319/062106-25217605486]Search in Google Scholar
[13. Cozza P, Baccetti T, Franchi L, Mucedero M. Comparison of 2 early treatment protocols for open-bite malocclusions. Am J Orthod Dentofacial Orthop 2007;132:743-7.10.1016/j.ajodo.2005.11.04518068591]Search in Google Scholar
[14. Giuntini V, Franchi L, Baccetti T, Mucedero M, Cozza P. Dentoskeletal changes associated with fixed and removable appliances with a crib in open-bite patients in the mixed dentition. Am J Orthod Dentofacial Orthop 2008;133:77-80.10.1016/j.ajodo.2007.07.01218174075]Search in Google Scholar
[15. Mucedero M, Franchi L, Giuntini V, Vangelisti A, McNamara JA Jr, Cozza P. Stability of quad-helix/crib therapy in dentoskeletal open bite: a long-term controlled study. Am J Orthod Dentofacial Orthop 2013;143:695-703.10.1016/j.ajodo.2013.01.01023631971]Search in Google Scholar
[16. Lineberger MW, McNamara JA, Baccetti T, Herberger T, Franchi L. Effects of rapid maxillary expansion in hyperdivergent patients. Am J Orthod Dentofacial Orthop 2012;142:60-9.10.1016/j.ajodo.2012.02.01922748991]Search in Google Scholar
[17. Japanese Society of Pediatric Dentistry. A Study on the cephalometric standards of Japanese children. Jpn J Pediatr Dent 1995;33:659-96.]Search in Google Scholar
[18. Broadbent BH, Broadbent BH Jr, Golden WH. The Bolton standards. In: Broadbent BH, Broadbent BH Jr, Golden WH, eds. Bolton standards of dentofacial developmental growth. St Louis: CV Mosby Co, 1975;62-81.]Search in Google Scholar
[19. Faul F, Erdfelder E, Lang AG, Buchner A. G*Power 3: A flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behav Res Methods 2007;39:175-91.10.3758/BF0319314617695343]Search in Google Scholar
[20. Kiekens RM, Maltha JC, van’t Hof MA, Kuijpers-Jagtman AM. A measuring system for facial aesthetics in Caucasian adolescents: reproducibility and validity. Eur J Orthod 2005;27:579-84.10.1093/ejo/cji05316009665]Search in Google Scholar
[21. Kitafusa Y. Application of “prescale” as an aid to clinical diagnosis in
orthodontics. Bull Tokyo Dent Coll 2004;45:99-108.10.2209/tdcpublication.45.9915536861]Search in Google Scholar
[22. Custodio W, Gomes SG, Faot F, Garcia RC, Del Bel Cury AA. Occlusal force, electromyographic activity of masticatory muscles and mandibular flexure of subjects with different facial types. J Appl Oral Sci 2011;19:343-9.10.1590/S1678-77572011005000008422378521655772]Search in Google Scholar
[23. Allareddy V, Rampa S, Masoud MI, Lee MK, Nalliah R, Allareddy V. Overview of registered studies in orthodontics: Evaluation of the ClinicalTrials.gov registry. Am J Orthod Dentofacial Orthop 2014;146:587-93.10.1016/j.ajodo.2014.07.01925439209]Search in Google Scholar