Skip to main content
OpenTrials
Not Yet Recruiting

NCT Number: NCT07116954

Root Resorption and Alveolar Bone Changes in the Maxillary Canine Retraction Using Ni Ti Closed-coil Springs Versus Elastomeric Chains (A Split -Mouth Cone Beam CT Study)

This study will be carried out to asses root resorption and alveolar bone changes in the maxillary canine retraction using NiTi closed-coil springs versus elastomeric chains with cone beam CT

Not Yet Recruiting

Trial opening soon.

Get Notified

Key information

Conditions

Orthodontic Patients Indicated for Upper First Premolar Extraction Orthodontic Patients Indicated for Maxillary Canine Retraction Root Resorption Stomatognathic Diseases Tooth Diseases Tooth Resorption

Age range

16 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

  • Inclusion Criteria:
  • Patients aged 16 years or older
  • Patients indicated for fixed orthodontic appliances
  • Patients indicated for bilateral extraction of maxillary first premolars
  • Patients who have not undergone any previous orthodontic treatment
  • Exclusion Criteria:
  • Patients with a history of craniofacial trauma, anomalies, or congenital defects
  • Patients currently taking anticoagulant drugs affecting bone metabolism
  • Patients with a history of trauma or pathology involving the maxillary canines
  • Patients with periodontally compromised teeth

Treatment and study plan

Twenty-Two adult Patients who indicated for bilateral maxillary first premolar extraction will be randomly assigned into two equal group.

Procedure

Group1: Elastomeric chains will be used on the right side, and NiTi closed-coil springs will be used on the left side. Group2: NiTi closed-coil springs will be used on the right side, Elastomeric chains will be used on the left side.

Canin retraction with NiTi Closed-Coil Springs and elastomeric chains

Procedure

Comparison between canine retraction using NiTi closed-coil springs versus elastomeric chains

Primary outcomes

  1. Change in Apical Root Length After Canine Retraction

    Time frame: Baseline (prior to canine retraction) and 6 months after retraction

    Measurement of apical root length (in millimeters) using CBCT images at T1 and T2 to assess root resorption on both retraction methods.

  2. Change in Alveolar Bone Thickness After Canine Retraction

    Time frame: Baseline (prior to canine retraction) and 6 months after retraction

    Quantitative measurement of alveolar bone thickness (in millimeters) using CBCT images taken at baseline (T1) and post-treatment (T2) in both NiTi closed-coil spring and elastomeric chain sides.

Secondary outcomes

  1. Change in Probing Depth

    Time frame: Baseline and 6 months post-treatment

    Measurement of probing depth (in millimeters) on both sides at baseline and 6 months

  2. Change in Plaque Index

    Time frame: Baseline and 6 months post-treatment

    Scoring of plaque accumulation using the Silness-Löe Plaque Index (score range: 0 to 3; higher score = worse outcome)

  3. Change in Bleeding Index

    Time frame: Baseline and 6 months post-treatment

    Evaluation using the Gingival Bleeding Index (score range: 0 to 3; higher score = worse outcome)

Study contacts

Contact information is provided by the study sponsor or research team.

Ahmed Mohamed Hassan Mahdy, Bds

CONTACT

[email protected]

+201119808935

Sponsors and collaborators

Lead sponsor

Al-Azhar University

Other

Registry information

Important dates

Study start
2025
Primary completion
2026
Study completion
2027
First posted
Aug 12, 2025
Registry last updated
Aug 12, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.