Status:
COMPLETED
Comparative Effect of Clear Aligner Mandibular Advancement and Twin Block Appliances in Class II Malocclusion
Lead Sponsor:
Sichuan University
Conditions:
CLASS II DIVISION 1 MALOCCLUSION
Eligibility:
All Genders
10-13 years
Brief Summary
The goal of this retrospective observational study is to compare the effects of Clear Aligner Mandibular Advancement (MA) and Twin Block (TB) appliances in treating Class II malocclusion, a condition ...
Detailed Description
Supplementary information for Study Design It was a retrospective study that collected patients' routine treatment X-rays (before and after treatment) to measure some angular and linear parameters fro...
Eligibility Criteria
Inclusion
- Patients who have completed MA or TB treatment at the West China Hospital of Stomatology Orthodontic Department.
- Pretreatment lateral cephalometric radiographs showing cervical vertebral maturation stage (CVSM) II or III.
- Patients in the mixed dentition or early permanent dentition stages.
- Class II Division 1 malocclusion according to Angle's classification
- ANB angle \> 4°; SNB ≤ 78°.
- Comprehensive medical records and necessary data available pre- and post-treatment.
Exclusion
- Missing teeth, supernumerary teeth, or severe dental malformations affecting function.
- Poor oral hygiene.
- Systemic diseases or congenital deformities.
- History of dental or maxillofacial trauma.
- Incomplete or missing records.
Key Trial Info
Start Date :
August 1 2021
Trial Type :
OBSERVATIONAL
Allocation :
ACTUAL
End Date :
June 30 2024
Estimated Enrollment :
47 Patients enrolled
Trial Details
Trial ID
NCT06609733
Start Date
August 1 2021
End Date
June 30 2024
Last Update
September 24 2024
Active Locations (1)
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1
West China School of Stomatology, Sichuan University
Chengdu, Sichuan, China, 610041