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Clinical Trial 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.

Clinical Trial 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. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT04549948
Study type Interventional
Source Jordan University of Science and Technology
Status Completed
Phase N/A
Start date December 1, 2018
Completion date June 30, 2020

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