Sydney Magnoglide- Influence of magnetic forces for class II corrections - Preliminary results of a pilot study

Abstract

Objective: To investigate the influence of magnetic forces on the skeletal and dentoalveolar effects for the correction of Class II malocclusion using the Sydney Magnoglide design with or without magnets. Study Design: An Inter university Prospective Randomized Controlled Clinical Trial Place & Duration of Study: Universities of Sydney and University of Queensland, Australia from March 2011 to August 2012. Methodology: Final sample size comprised of 12 subjects in Sydney magnoglide magnetic version at University of Sydney compared to 13 in the non-magnetic version at University of Queensland, Brisbane, Australia. A strict selection criteria was followed to ensure comparable groups hence the sample size. Lateral cephalograms were taken prior to treatment and immediately after functional correction. Pancherz analysis utilized. Comparisons performed with Student’s t-tests significance set at (P <0.05). Results: The two groups were fairly homogenous reducing the selection bias. Overall treatment was successful for all patients treated either with the magnetic or non-magnetic Sydney Magnoglide. Conclusion: Based on the statistical results and the limitations of the current study the non-magnetic and the magnetic Sydney Magnoglide appliance seem to be equally effective in this pilot study.