Rapid Maxillary Expander and Eruption Guidance Appliance therapy in skeletal Class II: cephalometric considerations

Authors

  • C Maspero Assistant Professor, Department of Biomedical, Surgical and Oral Sciences, University of Milan, Fondazione IRCCS Cà Granda, Milan
  • G Begnoni DDS, Ph.D, Department of Biomedical, Surgical and Oral Sciences, University of Milan, Fondazione IRCCS Cà Granda, Milan
  • A Magnani DDS, Ph.D, Department of Biomedical, Surgical and Oral Sciences, University of Milan, Fondazione IRCCS Cà Granda, Milan
  • M Farronato DDS, Ph.D, Department of Biomedical, Surgical and Oral Sciences, University of Milan, Fondazione IRCCS Cà Granda, Milan
  • N Khomchyna Student in Dentistry, Department of Biomedical, Surgical and Oral Sciences, University of Milan, Fondazione IRCCS Cà Granda, Milan
  • C Dellavia Associate Professor of Human Anatomy, Department of Biomedical, Surgical and Oral Sciences, University of Milan, Fondazione IRCCS Cà Granda, Milan

DOI:

https://doi.org/10.23804/ejpd.2019.20.04.04

Keywords:

Occlus-o-Guide, Eruption guidance appliance, Rapid maxillary expander, Skeletal Class II, Functional therapy

Abstract

AIM: The use of rapid maxillary expander (RME) combined with eruption guidance appliances (EGA) represents a valid method in the treatment of skeletal Class II deep bite patients. In this paper a retrospective cephalometric study of the effects of RME and EGA therapy in Class II deep bite patients is described and compared with the treatment effects of patients with the same malocclusion treated only by RME. MATERIALS: Pre and post treatment cephalometric radiographs of 47 Class II division 1 deep bite growing patients treated with RME followed by EGA (mean age 9.65 years) (Group 1) were compared with those obtained from a control group (Group 2) of 44 patients (mean age 9.34 years) treated with RME only. The following cephalometric values were analized: SNA; SNB; ANB; SN-PNS.ANS; SN-Go.GN; N-Me; S-Go. CONCLUSION: RME followed by EGA therapy in Class II skeletal deep bite patients has shown better results compared with RME therapy without functional appliance.