Relapse and Failure Rates Between CAD/CAM and Conventional Fixed Retainers

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

43 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-09-01

Study Completion Date

2022-09-30

Brief Summary

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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.

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Detailed Description

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Conditions

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Relapse

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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CAD/CAM group

Group Type EXPERIMENTAL

Computer Aided Design/ Computer Aided Manufacturing Retainers

Intervention Type OTHER

Custom-bent fixed retainer wires from an in-office CAD/CAM system with FixR software and the BenderI machine (YOAT Corporation, Lynwood, WA). Dentaflex wires- round, 0.5mm in diameter, three-stranded Stainless Steel (Dentaurum GmbH \& Co., Ispringen, Germany)- were used for the CAD/CAM group

Lab group

Group Type ACTIVE_COMPARATOR

Lab-based Retainers

Intervention Type OTHER

The lab group used the same type of wire as the CAD/CAM group but was manually bent by a lab technician

Chairside group

Group Type ACTIVE_COMPARATOR

Chairside Retainers

Intervention Type OTHER

The chairside group used three-stranded Stainless Steel, 0.974mm x 0.402 mm, flexible Ortho-FlexTech wires (Reliance, Itasca, IL)

Interventions

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Computer Aided Design/ Computer Aided Manufacturing Retainers

Custom-bent fixed retainer wires from an in-office CAD/CAM system with FixR software and the BenderI machine (YOAT Corporation, Lynwood, WA). Dentaflex wires- round, 0.5mm in diameter, three-stranded Stainless Steel (Dentaurum GmbH \& Co., Ispringen, Germany)- were used for the CAD/CAM group

Intervention Type OTHER

Lab-based Retainers

The lab group used the same type of wire as the CAD/CAM group but was manually bent by a lab technician

Intervention Type OTHER

Chairside Retainers

The chairside group used three-stranded Stainless Steel, 0.974mm x 0.402 mm, flexible Ortho-FlexTech wires (Reliance, Itasca, IL)

Intervention Type OTHER

Other Intervention Names

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CAD/CAM

Eligibility Criteria

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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

Minimum Eligible Age

13 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Responsible Party

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Nourhan M.Aly

Assistant Lecturer of Dental Public Health

Responsibility Role SPONSOR_INVESTIGATOR