Relapse and Failure Rates Between CAD/CAM and Conventional Fixed Retainers: A 2-year Follow-up of a Randomized Controlled Clinical Trial
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Enrollment
- 43
- Locations
- 1
- Primary Endpoint
- Change in Little's Irregularity Index (LII)
Study Overview
Brief Summary
The aim of this study was to compare the differences in relapse and failure rates in patients treated with fixed retainers (FRs) using Computer-Aided Design/Computer-Aided Manufacturing technology, lab-based technique, and chairside method.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- Double (Participant, Investigator)
Eligibility Criteria
- Ages
- 13 Years to — (Child, Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •completion of comprehensive orthodontic treatment
- •class I molar and canine relationships
- •indication for a fixed retainer on the mandibular anterior teeth.
- •no extractions done as part of their treatment.
- •Treatment with preadjusted edgewise appliance.
Exclusion Criteria
- •refusal to participate
- •refusal to have fixed retainers
- •poor oral hygiene
- •non-compliance
Arms & Interventions
CAD/CAM group
Intervention: Computer Aided Design/ Computer Aided Manufacturing Retainers (Other)
Lab group
Intervention: Lab-based Retainers (Other)
Chairside group
Intervention: Chairside Retainers (Other)
Outcomes
Primary Outcomes
Change in Little's Irregularity Index (LII)
Time Frame: 2 years
ICW was measured on the Meshlab software using the 3D ruler measurement tool. Pre-treatment, post-treatment, and post-retention measures were recorded and any change in the LII was considered relapse.
Change in intercanine width (ICW)
Time Frame: 2 years
ICW was measured on the Meshlab software using the 3D ruler measurement tool. Pre-treatment, post-treatment, and post-retention measures were recorded and any change in the ICW was considered relapse.
Secondary Outcomes
No secondary outcomes reported
Investigators
Nourhan M.Aly
Assistant Lecturer of Dental Public Health
University of Alexandria