NCT05499221

Bone Anchored Carriere Motion Appliance

Segmental Distalization by Bone Anchored Carriere Motion Appliance vs. Conventional One

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 32 (actual)
• Sponsor: Mansoura University · Academic / Other
• Sex: All
• Age: 11 Years – 16 Years
• Healthy volunteers: Accepted

Summary

Carriere Motion appliance (CMA) was designed to change a Class II molar relationship into a Class I relationship by distalizing the whole posterior maxillary segment by means of class II elastics and mandibular anchorage. To eliminate the adverse effects of CMA with class II elastics, we can use the CMA to distalize the maxillary posterior segment with intra-arch anchorage using infrazygomatic miniscrews. The aim of this study is to evaluate skeletaly anchored CMA for distalization of the maxillary buccal segment vs. conventionally anchored CMA by comparing skeletal and dental measurements obtained from lateral cephalometric radiographs obtained prior to treatment (T0) and immediately after correction of class II and remval of the appliance (T1).

Detailed description

Thirty-two class II malocclusion patients with age (11-16) years will be randomly allocated in the two groups: 1. Conventional anchorage CMA group (CAG): conventional mandibular anchorage using Essix retainer. 2. Skeletal anchorage CMA group (SAG): anchorage by infra-zygomatic miniscrews. In the CAG, Class II elastics will be attached from the maxillary canine to the mandibular first molar bilaterally with Essix retainer in the lower arch as anchorage means. In the SAG, closing coil spring will be attached from the maxillary canine to the infrazygomatic miniscrews bilaterally. For each patient, two lateral cephalograms will be obtained: one preoperatively and another after completion of distalization. Model measurements will be made using the attached 3Shape computer software.

Conditions

• Malocclusion, Angle Class II

Interventions

Type	Name	Description
DEVICE	Carriere motion appliance	The CMA will be bonded on the permanent maxillary canine and first molar, and the correct size is chosen according to the manufacturer's instructions.

Timeline

• Start date: 2022-01-26
• Primary completion: 2023-06-26
• Completion: 2023-08-26
• First posted: 2022-08-12
• Last updated: 2024-07-09

Locations

1 site across 1 country: Egypt

Regulatory

• FDA-regulated device study