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)

Status

Not yet recruiting

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT07116954

Enrollment

Registered

2025-08-12

Start date

2025-09-30

Completion date

2027-05-31

Last updated

2025-08-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthodontic Patients Indicated for Maxillary Canine Retraction, Orthodontic Patients Indicated for Upper First Premolar Extraction

Keywords

Niti coil springs, Canine Retraction, Elastomeric Chains, Root resorption, CBCT

Brief summary

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

Interventions

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

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.

PROCEDURECanin retraction with NiTi Closed-Coil Springs and elastomeric chains

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

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

OTHER

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

16 Years to No maximum

Healthy volunteers

Inclusion criteria

* 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

Design outcomes

Primary

Measure	Time frame	Description
Change in Apical Root Length After Canine Retraction	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.
Change in Alveolar Bone Thickness After Canine Retraction	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

Measure	Time frame	Description
Change in Probing Depth	Baseline and 6 months post-treatment	Measurement of probing depth (in millimeters) on both sides at baseline and 6 months
Change in Plaque Index	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)
Change in Bleeding Index	Baseline and 6 months post-treatment	Evaluation using the Gingival Bleeding Index (score range: 0 to 3; higher score = worse outcome)

Contacts

Primary ContactAhmed Mohamed Hassan Mahdy, Bds

Ah4723045@gmail.com+201119808935

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026