Efficacy of the Sander bite-jumping appliance in growing patients with mandibular retrusion: A randomized controlled trial

R. Martina, I. Cioffi, A. Galeotti, R. Tagliaferri, R. Cimino, A. Michelotti, R. Valletta, M. Farella, S. Paduano

Research output: Contribution to journalArticle

Abstract

Objectives: The efficacy of functional appliances remains highly debated. This randomized controlled trial investigated the skeletal and dentoalveolar effects determined by the Sander bite-jumping appliance (BJA). The null hypothesis to be tested was that the appliance would not induce supplementary mandibular growth compared to untreated controls. Setting and Sample Population: This study was carried out at the Section of Orthodontics, University of Naples Federico II, Italy. Forty-six patients receiving a clinical diagnosis of skeletal and dental class II due to mandibular retrusion were either allocated to a treatment (23 patients;15 boys, 8 girls; mean age ± SD: 10.9 ± 1.3 years) or to an untreated control group (23 patients;11 boys, 12 girls; mean age ± SD: 10.5 ± 1.2 years), by using a balanced block randomization. Methods: Lateral cephalograms were taken before and after treatment and used for comparisons. Measurements were analyzed by descriptive statistics, univariate and multivariate statistical tests. Results: Treated individuals had a significant increase in mandibular length (6.4 ± 2.3 vs. 3.5 ± 2.5 mm; p 

Original languageEnglish
Pages (from-to)116-126
Number of pages11
JournalOrthodontics and Craniofacial Research
Volume16
Issue number2
DOIs
Publication statusPublished - May 2013

Keywords

  • Bite jumping appliance
  • Class II malocclusion
  • Functional therapy
  • Mandibular retrusion

ASJC Scopus subject areas

  • Orthodontics
  • Oral Surgery
  • Otorhinolaryngology
  • Surgery

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    Martina, R., Cioffi, I., Galeotti, A., Tagliaferri, R., Cimino, R., Michelotti, A., Valletta, R., Farella, M., & Paduano, S. (2013). Efficacy of the Sander bite-jumping appliance in growing patients with mandibular retrusion: A randomized controlled trial. Orthodontics and Craniofacial Research, 16(2), 116-126. https://doi.org/10.1111/ocr.12013