Comparison between RME, SME and Leaf Expander in growing patients: a retrospective postero-anterior cephalometric study

Authors

  • V Lanteri DDS, MS, Post-doc researcher, Department of Biomedical, Surgical and Dental Sciences, University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan
  • G Cossellu DDS, MS, Post-doc researcher, Department of Biomedical, Surgical and Dental Sciences, University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan
  • A Gianolio DDS, MS Private Practice, Bra (CN)
  • M Beretta DDS, MS Private Practice, Casale Monferrato (AL)
  • C Lanteri MD, DDS, MS, Private practice, Casale Monferrato (AL)
  • C Cherchi DDS, MS Private Practice, Bra (CN)
  • G Farronato MD, DDS, MS, Full Professor and Dean, Department of Biomedical, Surgical and Dental Sciences, University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan

DOI:

https://doi.org/10.23804/ejpd.2018.19.03.06

Keywords:

Compliance, PA cephalometrics, Rapid maxillary expansion, Slow maxillary expansion

Abstract

AIM: The aim of this study is to compare the dental and orthopaedic effects of the Leaf Expander with rapid and slow maxillary expanders. MATERIALS: The sample comprised 30 patients with a posterior crossbite divided into three groups: the rapid maxillary expander (RME) group (3 m, 7 f), average age 8.9 years; the slow maxillary expander (SME) group (7 m, 3 f) average age 12.2 years; the Leaf Expander (LE) group (7 m, 3 f), average age 7.9 years. Postero-anterior cephalometric studies have been obtained at the beginning of the therapy (T1) and after 9 months (T2). Nasal width, maxillary width, mandibular width, upper permanent molars width have been measured by a calibrated examiner. CONCLUSION: The effectiveness of the LE in transversal deficiency correction has been confirmed.

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