Orthodontic tooth movement Oral Health
Conditions
Interventions
The trial will evaluate the effect of a low-intensity static magnetic field in the accelerating of orthodontic tooth movement in retraction of the upper canine. Before applying the trans-palatal arch,
Sponsors
Damascus University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. The patient has a bimaxillary protrusion and needs extraction of the first upper and lower premolars, with the relationship of the canines and molars being first class according to Angle 2. The sagittal skeletal relationship is first or second class 3. Normal or excessive facial height 4. All patients have permanent occlusion 5. Patients have good oral health (plaque index =1)
Exclusion criteria
Exclusion criteria: 1. Patients suffering from systemic diseases or syndromes 2. Missing permanent maxillary teeth (except third molars) 3. Patients who have impacted teeth 4. Patients who smoke 5. Patient who had previous orthodontic treatment
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. The effectiveness of the low-intensity static magnetic field in accelerating orthodontic tooth movement in retracting the upper canines compared to traditional methods. Calculation of the lateral movement of the canine (mm/month): 1.1. Duration of upper canine retraction: the months required to complete the retraction procedure will be recorded. Completion of this procedure is expected to occur within 4 months to 6 months. Assessment will be performed by calculating the months required to achieve complete retraction of the upper canine retraction through clinical examination. 1.2. Rate of retraction: the calculation of the rate of retraction will be done once the retraction procedures have finished. Completion of this procedure is expected to occur within 4 months to 6 months. Assessment will be performed on study models. The amount of distance being retracted in millimeters will be divided by the duration of retraction in weeks to give an estimation of the retraction rate. Dental casts will be used for the quantification of the anteroposterior movement of the upper canine every 30 days until the class I canine relationship is achieved. T0: 1 day before the beginning of canine retraction; T1: after 1 month of retraction; T2: after 2 months of retraction; T3: after 3 months of retraction; T4: after 4 months of retraction; and T5: at the end of retraction (expected to be within 4 months to 6 months) 2. Dentoalveolar changes (loss of anchorage - canine rotation): 2.1. Change in molar positions: T0: 1 day before the beginning of canine retraction; T1: after 1 month of retraction; T2: after 2 months of retraction; T3: after 3 months of retraction; T4: after 4 months of retraction; and T5: at the end of retraction (expected to be within 4 months to 6 months). The amount of distance travelled by the first molars is measured on study models taken at monthly intervals until the end of the retraction phase. 2.2. Change in canine rotation: T0: 1 day before the beginning of | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Acceptance and discomfort measured using the Visual Analogue Scale every 30 days from the 1st day after the activation of canine retraction. Completion of this procedure is expected to occur within 4 months and 6 months. 2. Tooth vitality measured for each canine using ethyl chloride applied by a cotton roll 1 day before the commencement of the retraction phase and at the end of the retraction phase | — |
Countries
Syria
Outcome results
None listed