Malocclusion. Anomalies of tooth position
Conditions
Interventions
Intervention 1: Intervention group: Amount of canine retraction on one side of the maxilla using 9 mm NiTi closed coil (American Orthodontics) with 200 grams force during 4 months. Intervention 2: Int
Sponsors
Shahid Beheshti University of Medical Sciences
Eligibility
Sex/Gender
All
Age
13 Years to 25 Years
Inclusion criteria
Inclusion criteria: Generally healthy patients Age 13 to 25 years Needed maxillary first premolar extraction as a part of orthodontic treatment Straight wire fixed orthodontic appliance No anchorage control or inter-arch elastic was indicated at the first 4 months of treatment All permanent teeth were present and erupted (not considering 2nd and 3rd molars)
Exclusion criteria
Exclusion criteria: Systemic disease that could influence tooth movement Taking medication that could influence tooth movement Craniofacial syndromes Pregnancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Canine retraction rate. Timepoint: Before intervention, 4 months after intervention. Method of measurement: The distance between canine cusp tip and the line connection first rugae will be measured on occlusograms using a digital caliper. This amount will be divided to 4 to show canine retraction rate per month. | — |
Secondary
| Measure | Time frame |
|---|---|
| Anchorage loss. Timepoint: before intervention and 4 months after intervention. Method of measurement: The distance between mesiobuccal cusp of first molar and the line connection first rugae will be measured on occlusograms using a digital caliper. This amount will be divided to 4 to show anchorage loss rate per month. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactSaeed Reza Motamedian
Shahid Beheshti University of Medical Sciences
Outcome results
None listed