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Comparing HANT and Conventional NiTi Archwires in Alignment

NCT07176871 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 52

Last updated 2025-09-16

No results posted yet for this study

Summary

This randomized clinical trial evaluated the efficiency of two orthodontic archwire sequences for correcting maxillary anterior crowding. Forty extraction patients (Little's irregularity index: 7-9 mm) were randomly assigned to either a sequence incorporating heat-activated nickel-titanium (HANT) archwires or a conventional NiTi sequence. Digital scans at baseline and monthly intervals up to 6 months assessed alignment changes, while CBCT measured root length and alveolar bone alterations. Pain intensity was recorded using a visual analog scale at 24 hours, 3 days, and 1 week after archwire placement. Statistical significance was set at p ≤ 0.05.

Conditions

  • Orthodontic

Interventions

PROCEDURE

Archwires

All patients were treated with 0.022-inch MBT brackets and sequential NiTi/HANT archwires. A 0.014 NiTi wire was placed initially, followed by monthly archwire changes if no deflection remained. Digital scans were taken from baseline (T0) to 6 months (T6) to measure alignment using Little's irregularity index. Pain was recorded at 24 hours, 3 days, and 1 week with a visual analog scale. CBCT scans before and after alignment assessed root length and alveolar bone changes, with standardized 3D superimpositions ensuring accurate comparisons.

Sponsors & Collaborators

  • Can Tho University of Medicine and Pharmacy

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
16 Years
Max Age
25 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-07-01
Primary Completion
2025-07-01
Completion
2025-07-01

Countries

  • Vietnam

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07176871 on ClinicalTrials.gov