Ignite Creation Date:
2025-12-25 @ 2:54 AM
Ignite Modification Date:
2025-12-26 @ 1:35 AM
Study NCT ID:
NCT06609733
Status:
COMPLETED
Last Update Posted:
2024-09-24
First Post:
2024-09-16
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Comparative Effect of Clear Aligner Mandibular Advancement and Twin Block Appliances in Class II Malocclusion
Sponsor:
Sichuan University
Organization:
Study Overview
Official Title:
Comparative Effect of Clear Aligner Mandibular Advancement and Twin Block Appliances in Class II Malocclusion
Status:
COMPLETED
Status Verified Date:
2024-09
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
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 where the lower jaw is underdeveloped. The main questions it aims to answer are:
1. Does mandibular advancement with clear aligners improve jaw and dental alignment as effectively as Twin Block appliances?
2. What are the differences in soft tissue changes, such as chin advancement and lip position, between these two treatments?
Researchers will compare MA and TB appliances to an untreated control group to evaluate their impact on skeletal, dental, and soft tissue outcomes. Participants in the study underwent cephalometric analysis (X-ray measurements) both before and after treatment to assess changes in jaw positioning, overbite, and overjet. The study focuses on how each treatment affects facial aesthetics and dental function.
Participants in the study will:
* Undergo treatment with either clear aligner mandibular advancement or Twin Block appliances.
* Attend follow-up appointments to monitor progress and assess treatment outcomes.
1. Does mandibular advancement with clear aligners improve jaw and dental alignment as effectively as Twin Block appliances?
2. What are the differences in soft tissue changes, such as chin advancement and lip position, between these two treatments?
Researchers will compare MA and TB appliances to an untreated control group to evaluate their impact on skeletal, dental, and soft tissue outcomes. Participants in the study underwent cephalometric analysis (X-ray measurements) both before and after treatment to assess changes in jaw positioning, overbite, and overjet. The study focuses on how each treatment affects facial aesthetics and dental function.
Participants in the study will:
* Undergo treatment with either clear aligner mandibular advancement or Twin Block appliances.
* Attend follow-up appointments to monitor progress and assess treatment outcomes.
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 from the X-rays.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
True
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
False
Is an FDA AA801 Violation?: