TADs Anchored vs Conventional Anchored Carriere Motion Appliance

Study Overview
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Brief Summary
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Carriere Motion appliance (CMA) was designed to correct 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 revoke the adverse effects of CMA with class II elastics, we can use the CMA to distalize the maxillary posterior segment with TADs anchorage using miniscrews. The aim of this study is to evaluate TADs anchored CMA vs. conventionally anchored CMA for distalization of the maxillary buccal segment.

Detailed Description
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Twenty class II malocclusion patients with age (11-16) years will be randomly allocated in the two groups: Group I: Patients will be treated by Carriere Motion Appliance using passive lingual arch. Group II: Patients will be treated by Carriere Motion Appliance using direct mini-screw. For each patient, two CBCT will be obtained: one preoperatively and another after completion of distalization. Comparing skeletal and dental measurements obtained from CBCT radiographs obtained prior to treatment (T0) and immediately after correction of class II and remval of the appliance (T1).

Official Title
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Carriere Motion Appliance in The Treatment of Class II Malocclusion Using Different Methods of Anchorage Control (Cone Beam Study)

Conditions
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Class II Malocclusion

Intervention / Treatment
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* Device: Carriere Motion Appliance


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adolescent patients aged 11-17 years. Unilateral or bilateral Class II molar relationship. Bilateral Class II canine relationship. No history of previous orthodontic treatment. No malformed teeth, impacted teeth and unerupted teeth. No systemic disease. Good oral hygiene. No abnormal pressure habit. No periodontal diseases. No missing teeth in maxillary arch. Exclusion Criteria: The need for extraction in the lower arch. Posterior crossbite. Presence of any craniofacial anomalies. Patients with syndromes.

Ages Eligible for Study
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Minimum Age: 11 Years
Maximum Age: 16 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Group I: Patients will be treated by Carriere Motion Appliance using passive lingual arch .<br>Conventional mandibular anchorage During the first month, 1/4-inch heavy elastics will be used. In the following months, 3/16-inch heavy elastics will be used. The patients will be instructed to wear the elastics 24 hours per day, except during mealtimes, and to change them daily | Device: Carriere Motion Appliance<br>* Patient will be randomly allocated into two groups: Group I: conventional mandibular anchorage using passive lingual arch. Group II: anchorage by direct mini-screws. In the group I, Class II elastics will be attached from the maxillary canine to the mandibular first molar bilaterally with passive lingual arch in the lower arch as anchorage means. In the group I, Class II elastics will be attached from the maxillary canine to mandiular miniscrews bilaterally. For each patient, two CBCT radiographs will be obtained: one preoperatively and another after completion of distalization.<br>* Other names: Mini-screw.;|
| Active Comparator: Group II: Patients will be treated by Carriere Motion Appliance using direct mini-screw.<br>TADs mandibular anchorage. During the first month, 1/4-inch heavy elastics will be used. In the following months, 3/16-inch heavy elastics will be used. The patients will be instructed to wear the elastics 24 hours per day, except during mealtimes, and to change them daily | Device: Carriere Motion Appliance<br>* Patient will be randomly allocated into two groups: Group I: conventional mandibular anchorage using passive lingual arch. Group II: anchorage by direct mini-screws. In the group I, Class II elastics will be attached from the maxillary canine to the mandibular first molar bilaterally with passive lingual arch in the lower arch as anchorage means. In the group I, Class II elastics will be attached from the maxillary canine to mandiular miniscrews bilaterally. For each patient, two CBCT radiographs will be obtained: one preoperatively and another after completion of distalization.<br>* Other names: Mini-screw.;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Treatment duration | months | from date of appliance delivery to date of removal after reaching class I molar relationship (about 4-6 months) | 
| Skeletal changes | degrees | from date of appliance delivery to date of removal after reaching class I molar relationship (about 4-6 months) ] | 
| Dental changes | degrees | from date of appliance delivery to date of removal after reaching class I molar relationship (about 4-6 months) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Carriere Motion Appliance