Evaluation of the Anchorage Loss During En-masse Retraction in Orthodontic Patients With Maxillar… (NCT04902456) | Clinical Trial Compass
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Evaluation of the Anchorage Loss During En-masse Retraction in Orthodontic Patients With Maxillary Protrusion
Egypt30 participantsStarted 2020-12-29
Plain-language 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.
Who can participate
Age range14 Years – 24 Years
SexALL
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Inclusion criteria
✓. Orthodontic patients (both genders)
✓. Age range (14-24)
✓. Patients requiring 1st premolars extraction followed by ''En-masse retraction'' (Bimaxillary Protrusion or Class II division 1 cases).
✓. Patients with fully erupted permanent teeth (not necessarily including the 3rd molar).
✓. Cases requiring maximum anchorage during anterior segment retraction.
✓. Cases with minimal crowding (2-3) mm
Exclusion criteria
✕. Patients suffering from any systemic diseases interfering with tooth movement.
✕. Patients with extracted or missing permanent teeth. (except for third molars).
✕. Patients with badly decayed teeth.
✕. Patients with any parafunctional habits (i.e. Bruxism, tongue thrusting, mouth breathing, etc....).
What they're measuring
1
Anchorage loss
Timeframe: from pre to post retraction/intervention ( an average of 6-8 months )