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Clinical Trial Summary

There is scarcity in literature regarding the effectiveness of friction and frictionless mechanics during ''En-masse retraction''technique on anchorage loss of posterior segment in orthodontic patients with maxillary protrusion. Moreover there is deficiency in studies measuring the patient pain and satisfaction regarding the different techniques of retraction. The aim of the current study is to evaluate the effects of friction versus frictionless mechanics, implemented during "En-masse retraction", on anchorage loss. Additionally, assessment of both techniques regarding their rates, effects on root resorption as well as patient satisfaction.


Clinical Trial Description

One of the most common complaints of orthodontic patients is proclination of anterior teeth where there is an increase in facial convexity and as well as incompetent lips. Bimaxillary dentoalveolar protrusion and class II division I cases always have this appearance. Frequently this situation requires extraction of the first premolars followed by fixed orthodontic appliance for space closure and retraction of anterior teeth. Different techniques are used including "Two-step retraction" where canines are retracted as a first step followed by anterior four incisors as a second step and "En-masse retraction" where anterior teeth are retracted as one unit. However, the method of "En-masse retraction" is controversial - whether to use frictionless or friction mechanics. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04902456
Study type Interventional
Source Future University in Egypt
Contact
Status Active, not recruiting
Phase N/A
Start date December 29, 2020
Completion date January 29, 2022

See also
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Not yet recruiting NCT03074370 - Evaluation of Smile Esthetics in Orthodontically Treated Patients With Bimaxillary-dentoalveolar Protrusion N/A