NCT04902430

Evaluation of the Rate of En-masse Retraction in Orthodontic Patients With Maxillary Protrusion

Evaluation of the Rate of En-masse Retraction in Orthodontic Patients With Maxillary Protrusion 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: All
• Age: 14 Years – 24 Years
• Healthy volunteers: Accepted

Summary

There's a scarcity in literature concerning en-masse retraction and its effect on the rate of tooth movement. The purpose of this study is to determine, In orthodontic patients with maxillary protrusion, which form of mechanics in en-masse retraction offers a faster rate of retraction; Friction or Frictionless Mechanics.

Detailed description

The en-masse technique can be done in one of two ways: through friction or frictionless mechanics. Both are viable options, but, ideally, we want to retract and complete the orthodontic treatment as quickly as possible, in order to decrease the negative effects that may occur during treatment. Which of these mechanics results in a decreased treatment time is still up for debate.

Conditions

• Bimaxillary Protrusion

Interventions

Type	Name	Description
PROCEDURE	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 212 g per side) extending between the crimpable hooks and the miniscrew
PROCEDURE	T- Loop	Closing retraction T-loops will be fabricated using 0.017 x 0.025 TMA wire. The loop will be positioned halfway the extraction space and the canine

Timeline

• Start date: 2020-12-29
• Primary completion: 2022-07-18
• Completion: 2022-08-12
• First posted: 2021-05-26
• Last updated: 2022-12-07

Locations

1 site across 1 country: Egypt