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

Malocclusion, Angle Class I Clinical Trial

Official title: 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

Clinical Trial 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.

Clinical Trial 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. ;

Related Conditions & MeSH terms

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

• NCT number: NCT03645356
• Study type: Interventional
• Source: Damascus University
• Status: Completed
• Phase: N/A
• Start date: August 19, 2018
• Completion date: July 20, 2022