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Evaluation of the midpalatal suture during rapid palatal expansion in children: a CT study

  • Omar Gabriel da Silva Filho1,*,
  • Tulio Silva Lara2
  • Araci Malagodi de Almeida1
  • Cristina da Silva3

1Orthodontist at Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil

2Preventative and Interceptive Orthodontics Course of PROFIS (Society for the Social Promotion of Cleft Lip and Palate), Bauru, Brazil

3Preventative and Interceptive Orthodontics Course of PROFIS (Society for the Social Promotion of Cleft Lip and Palate), Bauru, Brazil

DOI: 10.17796/jcpd.29.3.kvu17822u2056508 Vol.29,Issue 3,July 2005 pp.231-238

Published: 01 July 2005

*Corresponding Author(s): Omar Gabriel da Silva Filho E-mail:


The midpalatal suture of 18 children submitted to rapid palatal expansion with the Haas fixed expander and ranging in age from 5 years 2 months to 10 years 5 months was evaluated with com-puterized tomography. The posterior nasal spine undergoes the impact of RPE in patients in the pri-mary and mixed dentition stages, similarly to the anterior nasal spine though to a lesser extent. The average opening of the midpalatal suture was 2.21 mm in the anterior nasal spine region and 0.95 mm in the posterior nasal spine region.

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Omar Gabriel da Silva Filho,Tulio Silva Lara,Araci Malagodi de Almeida,Cristina da Silva. Evaluation of the midpalatal suture during rapid palatal expansion in children: a CT study. Journal of Clinical Pediatric Dentistry. 2005. 29(3);231-238.


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