NCT04549948

Curve of Spee: Speed of Leveling Using Different Orthodontic Archwires

Curve of Spee: Speed of Leveling Using Different Orthodontic Archwire Size and Material - A Randomized Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 51 (actual)
• Sponsor: Jordan University of Science and Technology · Academic / Other
• Sex: All
• Age: 16 Years – 30 Years
• Healthy volunteers: Accepted

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.

Conditions

• Orthodontic Treatment

Interventions

Type	Name	Description
PROCEDURE	0.017X0.025 Stainless steel	Leveling curve of Sppe using 0.017X0.025 SS archwire
PROCEDURE	0.019X0.025 Stainless steel	Leveling curve of Sppe using 0.019X0.025 Stainless steel archwire
PROCEDURE	0.021X0.025 B-Titanium archwire	Leveling curve of Sppe using 0.019X0.025 B-Titanium archwire

Timeline

• Start date: 2018-12-01
• Primary completion: 2019-09-30
• Completion: 2020-06-30
• First posted: 2020-09-16
• Last updated: 2020-09-22

Locations

1 site across 1 country: Jordan