Effects of Clear Aligners Versus Fixed Appliances on Occlusion After Treatment of Mild Anterior Crowding

NCT05737290 | Completed DMC

• 1 other identifier: 893/2838
• Study Type: interventional
• Target: 12
• Locations: 1 country
• Sites: 1

Brief Summary

The aim of this study is to evaluate effects of clear aligners versus fixed appliances on occlusion after treatment of mild anterior crowding a T-scan study.

Conditions

Occlusion

Keywords

Clear aligners; Fixed appliances; Anterior crowding; Occlusion; T scan

Outcome Measures

Primary Outcomes (2)

• Distribution of occlusal forces

  Amount of magnitude of occlusal forces after treatment by clear aligners

  1 Year and 6 Months

• Distribution of occlusal forces

  Amount of magnitude of occlusal forces after treatment by fixed appliances

  1 Year and 6 Months

Study Arms (2)

Group A

ACTIVE COMPARATOR

Device: Clear aligners

Group B

ACTIVE COMPARATOR

Device: Fixed appliances

Interventions

Clear aligners DEVICE

Patients with mild anterior crowding will be treated with non-extraction treatment using clear aligners.

Group A

Fixed appliances DEVICE

Patients with mild anterior crowding will be treated with non-extraction treatment using fixed appliances.

Group B

Eligibility Criteria

• Age: 14 Years - 22 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Patients between the age (14-22 years).
• Fully erupted permanent dentition, 3rd molars excluded.
• Healthy, compliant, and motivated patients who can visit the department regularly.
• Non-extraction treatment.
• Class I with mild anterior crowding lower and/ or upper.
• Good oral and general health.

You may not qualify if:

• Previous orthodontic treatment.
• Craniofacial abnormalities, congenital syndromes of the craniofacial area.
• Anterior or posterior crossbite.
• Anterior or lateral open bite.
• Poor oral hygiene or periodontally compromised patient.

Sponsors & Collaborators

• Al-Azhar University: lead

Study Sites (1)

Al Azhar University

Cairo, Nasr City, 11765, Egypt

Location

Related Publications (1)

• Weir T. Invisalign treatment of lower incisor extraction cases. Aust Orthod J. 2016 May;32(1):82-7.

  PMID: 27468595 BACKGROUND

MeSH Terms

Conditions

Bites and Stings

Interventions

Orthodontic Appliances, Fixed

Condition Hierarchy (Ancestors)

Poisoning; Chemically-Induced Disorders; Wounds and Injuries

Intervention Hierarchy (Ancestors)

Orthodontic Appliances; Orthodontics; Dentistry

Study Officials

• Moaz Hafez Abdelrhman, Master

  Al-Azhar University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Doctor

Study Record Dates

• First Submitted: February 6, 2023
• First Posted: February 21, 2023
• Study Start: May 1, 2024
• Primary Completion: March 1, 2026
• Study Completion: April 1, 2026
• Last Updated: May 13, 2026

Record last verified: 2026-05

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL
• Time Frame: 1 Year and 6 Months

Locations

EG (1)