Crowded teeth, orthodontic treatment, Malocclusion, Orthodontic Wires
Conditions
Interventions
Intervention Group: 11 patients were treated with fixed devices using the sequence of 5 conventional orthodontic wires. Each wire was used for 1 month. Total treatment time was 5 months.
Control Grou
Procedure/surgery
E06.658.453.684
Sponsors
Centro Universitário do Maranhão
Centro Universitário do Maranhão
Universidade Ceuma
Eligibility
Age
14 Years to 18 Years
Inclusion criteria
Inclusion criteria: Moderate mandibular anterior crowding (3-6 mm); all teeth present in the mandibular arch, up to second molars; no prescription for extractions in the mandibular arch; no need for treatment with intermaxillary elastics, interproximal stripping, open NiTi compression springs or active labial bow; no diseases that might affect tooth movement; and significant tooth size and shape abnormalities.
Exclusion criteria
Exclusion criteria: Patients with a history of trauma; resorption and that, for any reason, did not visit the clinic for more than a month; whose mandibular appliance broke; who had undergone previous orthodontic treatment .
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Correction of mandibular anterior crowding using two arch wire sequences, one with conventional nickel-titanium arch wires and the other with heat-activated NiTi arch wires, according to the irregularity index defined by Little. The time to complete alignment was considered. This time was compared between groups using the log-rank test (Mantel Cox). ;The sequence that included heat-activated wires, alignment and leveling of mandibular anterior teeth was completed earlier than in the group treated only with conventional NiTi arch wires (log rank=5.996; p<0.05). | — |
Secondary
| Measure | Time frame |
|---|---|
| Minimum time correction of crowding of the lower anterior teeth according to the irregularity index defined by Little.The shortest time to complete alignment was considered.;The minimum period required to correct the crowding of lower anterior teeth was less than six months in 100% of cases in the group of patients who used heat-activated NiTi wire, while only 72.7% of cases treated with the NiTi sequence were completely corrected within this same period. | — |
Countries
Brazil
Contacts
Public ContactEtevaldo Maia Filho
Centro Universitário do Maranhão
Outcome results
None listed