Clinical Evaluation of Zirconium Dioxide Nano-Coated Arch Wires

September 8, 2026 updated by: Mohamed Elsayed Desoky, Al-Azhar University

Assessment of the Role of Zirconium Dioxide Nanocoating of Arch Wires on the Rate of Orthodontic Tooth Movement During Leveling and Alignment: A Comparative Clinical Study

"This clinical trial aims to evaluate the clinical performance and efficiency of zirconium dioxide nano-coated orthodontic archwires compared to conventional archwires. The study focuses on assessing the leveling and alignment duration, as well as evaluating patient comfort and clinical outcomes during the initial stages of orthodontic treatment."

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Participants within the age range of 13 to 19 years.
  • Moderate crowding (4-6 mm) in the maxillary anterior segment, evaluated using the Little Irregularity Index (LII), indicating the need for treatment with a fixed appliance without extractions.
  • Patients in permanent dentition with all teeth had fully erupted ( excluding 3rd molars)
  • Good oral hygiene.
  • No previous orthodontic treatment.

Exclusion Criteria:

  • Transverse and/or vertical skeletal dysplasia or craniofacial malformation
  • Retained primary or missing permanent teeth in the maxillary anterior area.
  • Present or history of periodontal diseases.
  • Physical or mental disability.
  • Systemic diseases or regular use of medications that could interfere with orthodontic tooth movement.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Zirconium Dioxide Nano-Coated Archwire Group
Patients will receive orthodontic treatment using zirconium dioxide nano-coated archwires.
Device: Zirconium dioxide nano-coated archwire
Zirconium dioxide nano-coated nickel-titanium archwire used during the leveling and alignment phase of fixed orthodontic treatment, compared against conventional uncoated NiTi archwires."
Placebo Comparator: Conventional Archwire Group
Patients will receive conventional orthodontic archwires during treatment.
Device: Conventional orthodontic archwire
Conventional orthodontic archwire used during the leveling and alignment phase of fixed orthodontic treatment, compared against Zirconium dioxide nano-coated nickel-titanium archwire

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Rate of dental alignment
Time Frame: Measured at baseline and every 4 weeks up to 16 weeks .
Little's Irregularity Index (unabbreviated scale title). The index measures the linear displacement of the five anatomic points of the anterior teeth. Scores range from a minimum of 0 (representing perfect alignment with no displacement) to a maximum of 10 or higher (representing severe dental crowding and irregularity). Lower scores indicate a better outcome (greater dental alignment and successful leveling phase).
Measured at baseline and every 4 weeks up to 16 weeks .

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Al-Azhar University

Investigators

  • Study Director: Raafat E Mohamed, Professor, Al-Azhar University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

  • TY - JOUR AU - Fahmy, Ragi AU - Mohamed, Kareem AU - Mohamed, Wael AU - Refai, Mobarak PY - 2024/07/17 SP - T1 - Effect of Zirconium Dioxide Nanoparticles Coating of Orthodontic Appliance on The Rate of Maxillary Canine Retraction (Randomized Control Study) VL - DO - 10.48047/AFJBS.6.Si4.2024.859-870 ER -

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

September 1, 2026

Primary Completion (Estimated)

September 1, 2027

Study Completion (Estimated)

September 1, 2028

Study Registration Dates

First Submitted

September 3, 2026

First Submitted That Met QC Criteria

September 8, 2026

First Posted (Actual)

September 10, 2026

Study Record Updates

Last Update Posted (Actual)

September 10, 2026

Last Update Submitted That Met QC Criteria

September 8, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • EC Ref No.1218/1494

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Yes, individual participant data that underlie the results reported in the publication will be shared after de-identification, beginning 3 months and ending 5 years following article publication, to researchers who provide a methodologically sound proposal

IPD Sharing Time Frame

Beginning 3 months and ending 5 years following article publication.

IPD Sharing Access Criteria

Requests should be directed to the corresponding author via email. Access will be granted to researchers whose proposed use of the data has been approved by an independent review committee for individual participant data meta-analyses.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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