Orthodontic Treatment
Conditions
Keywords
root resorption, pain, pulpal blood flow
Brief summary
The objectives if this study was to evaluate the efficacy of 3 different rectangular archwires in the correction of the curve of Spee (COS), to record the time needed to level excessive COS in the mandibular arch using the 3 archwire sizes, to investigate the changes in intercanine and intermolar widths and arch length during leveling, to measure the arterio-posterior and vertical movement for the lower incisors and lower molars, to record pulpal blood flow and to detect the root resorption in the lower anterior teeth associated with leveling excessive COS using the 3 different archwires.
Detailed description
Fifty one subjects with an excessive COS were included in this study. The subjects will be randomly divided into three groups; Group one (17 patients): leveling of COS using 0.017X0.025-inch stainless steel archwire. Group two (17 patients): leveling of COS using 0.019X0.025-inch stainless steel archwire. Group three (17 patients): leveling of COS using 0.021X0.025-inch Titanium molybdenum archwire. In the three groups, a 5mm depth reverse COS will be inserted. Records consisted of lateral cephalograms (pre-treatment, at T0 and post-treatment), peri-apical radiographs (at T0 and at T5), study casts (pre-treatment and at each time point during the tudy). Patients will be followed up on monthly visits without removing leveling archwires where alginate impressions were taken for the lower arch. Pain scores during the first week of leveling will be recorded using visual analogue scale (VAS).The amount of COS correction in mm, changes in intercanine in mm, intermolar and arch length in mm, pain scores and lower incisors root resorptions in mm will be measured.
Interventions
PROCEDURE0.017X0.025 Stainless steel
Leveling curve of Sppe using 0.017X0.025 SS archwire
PROCEDURE0.019X0.025 Stainless steel
Leveling curve of Sppe using 0.019X0.025 Stainless steel archwire
PROCEDURE0.021X0.025 B-Titanium archwire
Leveling curve of Sppe using 0.019X0.025 B-Titanium archwire
Sponsors
Jordan University of Science and Technology
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Masking description
The patient was blinded to the intervention used. However, it was not possible to blind the clinician during treatment.
Intervention model description
Leveling of the curve of Spee
Eligibility
Sex/Gender
ALL
Age
16 Years to 30 Years
Healthy volunteers
Yes
Inclusion criteria
* Age ≥ 16 years and ≤ 30 years * Overbite covering more than half of the lower incisor height * Curve of Spee ≥ 4 millimeters * Mild crowding in lower arch where non-extraction treatment is indicated. * Normally inclined or retroclined lower incisors * Averaged or reduced lower vertical height * Good oral hygiene and healthy periodontium * All permanent teeth are present except for the third molars
Exclusion criteria
* Severe crowding in lower arch where extraction treatment is indicated. * Missing permanent molars or Premolars * Poor oral hygiene and Periodontal disease * Systemic health problems and medications were taken * History of previous orthodontic treatment * Smoking
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Curve of Spee depth changes during leveling | 4 to 6 months | The change in Curve of Spee in millimetres |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Pain perception | one week | A10-point visual analogue scale of 10 cm length where 0 indicate no pain and 10 indicate intolerable pain |
| Root Resorption | 6 months | change in root length in millimeters |
| Pulpal blood flow | one month | Change in blood flow using laser flowmetry |
Countries
Jordan
Outcome results
None listed