NCT04878939

Evaluation of Incisors' Position Following Anterior Segment Retraction

Evaluation of Incisors' Position Following Anterior Segment Retraction Using Friction Versus Frictionless Mechanics: A Randomized Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 30 (actual)
• Sponsor: Future University in Egypt · Academic / Other
• Sex: Female
• Age: 13 Years – 25 Years
• Healthy volunteers: Accepted

Summary

There's scarcity in literature concerning the issue of anterior segment retraction technique and its effect on anterior teeth position. Therefore, a randomized clinical trial has been chosen to investigate this issue, aiming to support clinicians with the best guidelines for anterior segment retraction.

Detailed description

Thirty females with bimaxillary protrusion were randomly allocated into two groups. In one group, anterior segment retraction was commenced using an elastomeric chain rendering 160 g/side extending between mini-screw implant and a hook crimped on 0.017- by 0.025-inch stainless steel wire distal to the lateral incisor. In the other group, anterior segment retraction was done using closing T-loops fabricated from 0.017- by 0.025-inch titanium molybdenum alloy (TMA) wire rendering comparable retraction force. Three-dimensional analysis of incisors' buccolingual (BL)- torque, mesiodistal (MD)- tip, vertical position changes and root resorption were assessed using cone beam computed tomography scans.

Conditions

• Bimaxillary Protrusion

Interventions

Type	Name	Description
OTHER	Power chain used for anterior segment retraction	Elastomeric chain rendering 160 g/side extending between mini-screw implant and a hook crimped on 0.017- by 0.025-inch stainless steel wire distal to the lateral incisor.
OTHER	T-loop fabricated to perform anterior segment retraction	In the frictionless group, anterior segment retraction was done using closing T-loops fabricated from 0.017- by 0.025-inch titanium molybdenum alloy (TMA) wire rendering comparable retraction force.

Timeline

• Start date: 2019-02-04
• Primary completion: 2020-09-01
• Completion: 2020-12-13
• First posted: 2021-05-10
• Last updated: 2021-05-10

Locations

1 site across 1 country: Egypt