NCT05150665

Evaluation of Mini and Macro-esthetics Following En- Masse Retraction Versus Two Step Retraction

Evaluation of Mini and Macro-esthetics Following En- Masse Retraction Versus Two Step Retraction in Maxillary Protrusion Cases: A Randomized Clinical Trial

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 30 (actual)
• Sponsor: Future University in Egypt · Academic / Other
• Sex: All
• Age: 16 Years – 24 Years
• Healthy volunteers: Accepted

Summary

There's a scarcity in literature concerning mini-esthetics specially maxillary gingival display changes following en-masse retraction and two-step retraction. The purpose of this study is to determine, In orthodontic patients with maxillary protrusion, which technique of retraction will result in better esthetics upon smiling following en-masse retraction or two step retraction mechanics.

Detailed description

This study will be conducted in order to evaluate which technique of retraction will provide better outcome regarding mini and macro esthetics. In terms of mini esthetics, posed smiles will be analyzed to evaluate maxillary gingival display, as well as the analysis of smile arc, buccal corridor, inter-labial gap. In terms of macro esthetics, frontal and profile poses will be assessed to evaluate the nasolabial angle, mentolabial angle and upper and lower lip protrusion/ E- plane.

Conditions

• Bimaxillary Protrusion

Interventions

Type	Name	Description
PROCEDURE	En-masse retraction	Power chain and Crimpable hook for En-Masse Retraction Retraction will start on a 0.017"x0.025" Stainless steel wire using elastomeric chain (force applied will be 200 g per side) extending between the crimpable hooks and the miniscrew
PROCEDURE	Two step Retraction	Retraction of canine started on a 0.017"x0.025" Stainless steel wire using elastomeric chain (force applied will be 150 g per side)followed by anterior teeth retraction on 0.017"x0.025" Stainless steel wire using elastomeric chain (force applied will be 160 g per side) extending between the crimpable hooks and the mini-screw.

Timeline

• Start date: 2020-10-29
• Primary completion: 2021-12-28
• Completion: 2021-12-28
• First posted: 2021-12-09
• Last updated: 2021-12-09

Locations

1 site across 1 country: Egypt