Angle Class II
Conditions
Brief summary
Class II subdivision malocclusions are common and complex to treat due to their asymmetry. The range of orthodontic correction devices is expanding towards systems that are more comfortable for the patient but may not necessarily have scientific evidence to demonstrate their effectiveness. The aim of this study was therefore to evaluate, for the first time, the effect of a Class II correction device, namely the Carriere Motion 3D (CMA), on patients with a Class II subdivision malocclusion. Method:this retrospective observational study included all patients presenting with a Class II subdivision malocclusion and treated with CMA between July 2018 and November 2023. Before treatment (T0) and after treatment with CMA (T1), orthodontic data from dental molds and lateral cephalometric radiographs (Steiner analysis) were collected and statistically analyzed to assess dentoalveolar as well as skeletal effects of treatment using CMA.
Interventions
PROCEDUREAngle Class II unilateral, treated by carriere motion appliance
This treatment was unilateral, with dental composite bites ramps behind canines
Sponsors
Centre Hospitalier Universitaire de Nice
Study design
Observational model
CASE_ONLY
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
28 Years to 47 Years
Healthy volunteers
No
Inclusion criteria
* Patients who have completed their growth and present with a Class II subdivision malocclusion. * Patients who underwent orthodontic treatment with CMA between 07/11/2018 and 11/22/2023. * Patients who have a complete orthodontic record allowing for pre- and post-treatment measurements with CMA.
Exclusion criteria
None
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Molar Angle class II correction | Up to 6 months | Measured between the centro vestibular groove of the maxillar fisrt molar and the mesio vestibulair cusp tip of the mandibular molar in millimeters |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Rotations | Up to 6 months | Mesured of the Rotations of the molars and canines supporting the CMA in degrees |
| Inter-incisal variations | Up to 6 months | Mesure of the variation in the inter-incisal midline discrepancy in millimeters |
| Arch depth | Up to 6 months | Mesure of the variation in arch depth in millimeters |
| Correction of the Class II canine relationship | Up to 6 months | Mesured correction of the Class II canine relationship in millimeters |
| Canine Angle class II correction | Up to 6 months | Measurement performed between the maxillary canine cusp tip and the inter-dental space between the mandibular canine and premolar in millimeters |
| Extrusion or intrusion | Up to 6 months | Extrusion or intrusion of the maxillary canines and molars supporting the orthodontic appliance in millimeters |
| Steiner analysis | Up to 24 months | A Steiner analysis was performed on the lateral cephalograms, measurements in millimeters on the X-Ray |
| Arch width | Up to 6 months | Mesure of th variation in canine and molar arch width in millimeters |
Countries
France
Outcome results
None listed