NCT03645356

Comparison Between Clear Aligners and Traditional Fixed Appliances in the Treatment of Four-premolar-extraction Cases

Evaluation of the Efficacy of Clear Aligners in the Correction of Severe Dental Crowding Cases Combined With Premolar Extraction Versus Vestibular Fixed Orthodontic Appliances: A Randomized Clinical Controlled Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 40 (actual)
• Sponsor: Damascus University · Academic / Other
• Sex: All
• Age: 18 Years – 25 Years
• Healthy volunteers: Not accepted

Summary

Patients who have severe crowding that require four premolars extraction will be treated in this study. The efficacy of the clear aligners and vestibular fixed appliances will be assessed. The treatment result of these two different methods will be explored using the Peer Assessment Rating (PAR) in two different times (T0: Before treatment, T1: After treatment) and the American Board of Orthodontics Objective Grading System (ABO-OGS) after treatment (T1). There are two groups: First group (Experimental): the patients in this group will be treated using clear aligners. Second group (Control): the patients in this group will be treated using fixed appliances.

Detailed description

For years, orthodontists and dentists have used removable appliances for orthodontic treatment. Today, with the CAD/CAM technology, clear aligners treat a broader range of cases with greater precision. They consist of a series of plastic aligners that are intended to replace conventional wire and bracket technology for many orthodontic cases. Each custom manufactured aligner exerts gentle, continuous forces to move teeth incrementally from their original state to a final, treated state. Each aligner is worn for about two weeks, then replaced by the next in the series until the final position is achieved.

Conditions

• Malocclusion, Angle Class I
• Malocclusion; Displaced or Missing Teeth
• Crowding

Interventions

Type	Name	Description
DEVICE	Fixed Appliances	Using an MBT-prescription of metallic brackets, patients will be treated in the conventional way
DEVICE	Clear Aligners	Using a sequence of clear aligners, patients will be give an aligner every two weeks until the completion of treatment

Timeline

• Start date: 2018-08-19
• Primary completion: 2021-12-10
• Completion: 2022-07-20
• First posted: 2018-08-24
• Last updated: 2023-02-22

Locations

1 site across 1 country: Syria