Status:
UNKNOWN
Mechanical Properties and Clinical Efficacy of Two Nickel-Titanium (NiTi) Archwires
Lead Sponsor:
Fundación Universitaria CIEO
Conditions:
Crowding of Anterior Mandibular Teeth
Eligibility:
All Genders
13-25 years
Phase:
NA
Brief Summary
Objective: to compare the changes of the mechanical properties measured by tensile test and three point bending test of two NiTi archwires (heat-activated and superelastic); when exposed to the oral c...
Detailed Description
PICO QUESTION: * Does the amount of the resolution of the anterior lower arch crowding increase in the patients with superelastic NiTi archwire compared with the patients with heat-activated NiTi arc...
Eligibility Criteria
Inclusion
- Inclusion Criteria:
- Orthodontic treatment without extraction with moderate anterior mandibular crowding (little index: 4-6mm)
- Age range between 15-25 years' old
- Non gingivitis or untreated caries at the start of orthodontic treatment
- Not need for intermaxillary elastics, striping, open compressed Nit springs, active labial arch, stainless ligature, during the first to the third months of orthodontic treatment
- Complete orthodontic appliances in the lower arch (at minimum from first molar to the first molar)
- Exclusion criteria:
- Patients with systemic disease
- Medicated patients (long term use of antibiotics, Phenytoin, cyclosporine, anti- inflammatory drugs, systemic corticosteroids, and calcium channel blockers)
- Diseases that may affect dental movement
- Syndromic patients
- Patients with a history of trauma and/or root resorption at the lower arch
- Patients who do not attend more than one month to the appointment
- Lower .014" NiTi archwires that fracture during the first three months of the study.
- Patients with previous orthodontic treatment
Exclusion
Key Trial Info
Start Date :
July 8 2017
Trial Type :
INTERVENTIONAL
Allocation :
ESTIMATED
End Date :
December 10 2019
Estimated Enrollment :
54 Patients enrolled
Trial Details
Trial ID
NCT03256279
Start Date
July 8 2017
End Date
December 10 2019
Last Update
October 1 2019
Active Locations (1)
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1
Orthodontic clinic of Post-graduation program UniCIEO
Bogotá, Bogotá D. C., Colombia, 11011