Carriere Motion® 3D™ appliance followed by Self-ligating brackets System in the correction of Class II malocclusion: dentoalveolar and skeletal effects compared to the use of intermaxillary elastics

Abstract

OBJECTIVES: The aim of the study was to analyze the skeletal and dentoalveolar effects of CarriereMotion® 3D™ appliance (CMA; Henry Schein Orthodontics, Carlsbad, Calif) followed by full fixedmultibracket appliance. The results were then compared to a sample treated with class II elastics and fullfixed multibracket appliance.MATERIALS AND METHODS: Treatment records of 30 Caucasian patients with initial class IImalocclusion were retrospectively selected and divided into two groups. In Group 1, patients were treatedwith the Carriere Motion® 3D™ device, and in Group 2 with class II elastics, both followed by fixedmultibrackets appliance. Digital dental casts were analyzed using the VAM (Vectra, Canfield Scientific,Fairfield, NJ, USA) software to gather in-out, tip and torque values to compare the data between the twogroups. Lateral cephalograms before and after treatments were analyzed.RESULTS: The dental cast analysis revealed a reduced tip of the upper canine and upper first molar,mainly in Group 1, meaning that the Carriere Motion® 3D™ appliance causes a distal inclination of thecrowns to which it is bonded. From lateral cephalograms analysis emerged that skeletal values changeswere not statistically significant. Indeed, we observed mainly dento-alveolar variations in both groups.CONCLUSIONS: The Carriere Motion® 3D™ appliance was not able to determine a bodily distalmovement of upper molars, but a combination of lower and upper dental effects. No statistically significantdifferences were found in the correction of class II malocclusion when compared to the group treated withintermaxillary elastics.