Dentoskeletal effects and facial profile changes during activator therapy

European Journal of Orthodontics
Paola CozzaStefania Colagrossi

Abstract

The aim of this retrospective study was to investigate cephalometrically the skeletal, dental, and soft tissue modifications induced by activator treatment in patients with Class II malocclusions caused by mandibular retrognathism. The subjects, all in the mixed dentition, were selected from a single centre and were divided into two groups: 40 patients treated with an incisor double capping activator (20 girls, 20 boys with a mean age of 10 years) and a control group of 30 subjects (15 girls, 15 boys with a mean age of 10 years). The dentoskeletal and aesthetic changes that occurred were compared on lateral cephalograms taken before treatment (T0) and after 18-24 months, when the activator was removed (T1). In the control group the radiographs were obtained before (T0) and after (T1) 21 months (standard deviation +/- 3 months). Activator treatment in these growing patients resulted in a correction of the Class II relationship (ANB -2.14 degrees), a restriction of maxillary growth (SNA -0.5 degrees), an advancement of the mandibular structures (SNB +1.64 degrees, FH--NPg +3.39 degrees; OLp-B +5.17 mm, OLp-Pg +5.14 mm, OLp-Go +2.44 mm), a correction of the overjet (-5.03 mm), an improvement in overbite (-1.17 mm) and uprighting o...Continue Reading

Citations

May 27, 2010·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Gero KinzingerJörg Lisson
Mar 7, 2013·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Jörg Alexander LissonBjörn Ludwig
Jul 20, 2010·European Journal of Orthodontics·Letizia PerilloTiziano Baccetti
Oct 20, 2010·European Journal of Orthodontics·Abdolreza JamilianShabnam Sheikholeslam Amiri
May 2, 2013·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Karina Jerônimo Rodrigues Santiago de LimaRodrigo Hermont Cançado
Feb 6, 2008·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Rodrigo Hermont CançadoConceição Eunice Canuto
May 9, 2006·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Paola CozzaJames A McNamara
Apr 2, 2014·Clinical Oral Investigations·Fundagül BilgiçOrhan Hamamci
Nov 26, 2019·Progress in Orthodontics·Mary-Eleni ZouloumiNikolaos Gkantidis
Jul 17, 2020·Clinical Oral Investigations·Sinem Ince-BingolAyca Arman-Ozcirpici
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Mar 25, 2021·Brazilian Journal of Otorhinolaryngology·Rita Catia Brás BarianiReginaldo Raimundo Fujita
May 8, 2021·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Michal SarulJoanna Antoszewska-Smith

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