An interventional study of Twenty-Two adult Patients who indicated for bilateral maxillary first premolar extraction will be randomly assigned into two equal group. and Canin retraction with NiTi Closed-Coil Springs and elastomeric chains in Orthodontic Patients Indicated for Upper First Premolar Extraction and Orthodontic Patients Indicated for Maxillary Canine Retraction, sponsored by Al-Azhar University. Not yet recruiting. Open to participants aged 16 Years and older. Per ClinicalTrials.gov, last updated 2025-08-12.
Sponsored by Al-Azhar University · Not applicable, Interventional, and Other
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
43 studies on the registry are indexed under Root Resorption; 9 are open to participants now.
This study's planned enrollment of 22 is below the median of 29 across 36 interventional studies indexed under Root Resorption.
Browse Root Resorption studies →Al-Azhar University is the lead sponsor of 531 studies on the registry; 172 are open to participants now.
Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
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Patients aged 16 years or older
Patients with a history of craniofacial trauma, anomalies, or congenital defects
Procedure: Twenty-Two adult Patients who indicated for bilateral maxillary first premolar extraction will be randomly assigned into two equal group. · Procedure: Canin retraction with NiTi Closed-Coil Springs and elastomeric chains
Procedure: Canin retraction with NiTi Closed-Coil Springs and elastomeric chains
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.
Comparison between canine retraction using NiTi closed-coil springs versus elastomeric chains
Change in Apical Root Length After Canine Retraction
Measurement of apical root length (in millimeters) using CBCT images at T1 and T2 to assess root resorption on both retraction methods.
Time frame: Baseline (prior to canine retraction) and 6 months after retraction
Change in Alveolar Bone Thickness After Canine 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.
Time frame: Baseline (prior to canine retraction) and 6 months after retraction
Change in Probing Depth
Measurement of probing depth (in millimeters) on both sides at baseline and 6 months
Time frame: Baseline and 6 months post-treatment
Change in Plaque Index
Scoring of plaque accumulation using the Silness-Löe Plaque Index (score range: 0 to 3; higher score = worse outcome)
Time frame: Baseline and 6 months post-treatment
Change in Bleeding Index
Evaluation using the Gingival Bleeding Index (score range: 0 to 3; higher score = worse outcome)
Time frame: Baseline and 6 months post-treatment
No study locations are listed for this record.
Plan to share: Yes — De-identified individual participant data (IPD), including CBCT-based measurements of alveolar bone height and root resorption, will be shared. Data will be available beginning 6 months after study completion via a secure external repository (link will be provided in the References section). Access will be granted to researchers upon request and subject to approval.
Supporting information: Study protocol, Statistical analysis plan, Clinical study report
No publications or documents are linked to this record.
This study is not yet recruiting, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.
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