Comparing the Alignment Efficiency of Three Types of Nickel-titanium Archwires

Study Overview
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Brief Summary
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To compare the alignment efficiency of conventional NiTi arch wire to Thermal and Super elastic NiTi arch wires.

Detailed Description
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Method: All the participants will be recruited from Ziauddin University dental OPD, each will be provided with full information about study. An informed consent form will be signed from every patient or their guardian/parents. Patients who agree to be part of this study will be included. Subjects will be treated by Orthodontic resident under faculty supervision. Pre-treatment mandibular crowding will be assessed on dental casts. Randomization of the three groups will be done by Opaque envelope technique Bonding will be done using 3M uniteck brackets. After initial bonding good quality mandibular impressions will be taken and poured to obtain dental casts. Impressions and casts will be obtained at every 4 weeks interval until the initial alignment phase is complete. At the time of bonding all lower anterior teeth will be fully engaged in the archwire. The principal researcher will tag every model with an identification code before calculating measurements. The contact point displacements will be measured with vernier caliper using the Little's index of irregularity. All measurements will be then summed and aggregated value will represent the degree of anterior irregularities.

Official Title
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Comparing the Alignment Efficiency of Three Types of Nickel-titanium Archwires. A Randomized Control Trial

Conditions
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Crowding of Anterior Mandibular Teeth

Intervention / Treatment
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* Procedure: orthodontic treatment with fixed appliances


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: lower anterior crowding good oral hygeine all permanent lower incisors no previous orthodontic treatment Exclusion Criteria: extracted or missing lower incisors poor oral hygeine relevant medical history previous orthodontic treatment

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 25 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Sequential Assignment
Interventional Model Description: three groups
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: conventional niti arch wire group<br>all participants in this group will be placed conventional 014 niti lower archwire. | Procedure: orthodontic treatment with fixed appliances<br>* comprehensive orthodontic treatment with fixed orthodontic appliances for the correction of misaligned teeth.<br>|
| Other: super elastic niti archwire group<br>all participants will be given super elastic 014 lower NiTi archwire. | Procedure: orthodontic treatment with fixed appliances<br>* comprehensive orthodontic treatment with fixed orthodontic appliances for the correction of misaligned teeth.<br>|
| Other: thermal niti archwire group<br>all participants will be given thermal lower 014 niti archwire. | Procedure: orthodontic treatment with fixed appliances<br>* comprehensive orthodontic treatment with fixed orthodontic appliances for the correction of misaligned teeth.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| comparing the alignment efficiency of three types of NiTi archwires. | alignment of lower anterior crowding | 4 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Nickel Titanium, Archwires, Crowding, Alignment, Nitinol