Evaluation of Treatment Duration of En-masse Versus Two Steps Retraction in Patients Having Maxillary Protrusion

Future University in Egypt30 enrolled

Overview

Brief summary: there's a scarcity in literature concerning time needed to retract anterior segment following premolars extraction. the purpose of this study is to determine, in orthodontic patients with maxillary protrusion, which form of technique of retraction offers a faster treatment duration of retraction : en-masse or two step techniques

Anterior segment retraction can be done in one of two ways: through En masse or two step techniques. Both are viable options, but, ideally, the investigator wanted 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 techniques results in a decreased treatment time is still up for debate.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Bimaxillary Protrusion

Interventions

En masse retractionPROCEDURE

Retraction stated on a 0.017''x 0.025'' Stainless steel wire using elastomeric chain ( force applied 200 g per side) extending between the crimpable hooks and the mini-screw.

Two-Step retractionPROCEDURE

Retraction of canine started on a 0.017''x0.025'' Stainless steel wire using elastomeric chain ( force applied 150 g per side) followed by anterior teeth retraction on 0.017''x0.025'' Stainless steel wire using elastomeric chain ( force applied 160 g per side) extending between crimpable hooks and the mini-screw.

Eligibility

Sex: ALLMin age: 14 YearsMax age: 24 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Adults and adolescent patients ( both gender) * Age range (14- 24) * patient with maxillary protrusion requiring first premolars extraction ( bimaxillary protrusion or class II division 1 cases) * patients with fully erupted permanent teeth ( not necessarily including the third molar). * cases required maximum anchorage during retraction. * good general and oral health 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.,.....) * patients with previous orthodontic treatment

Locations (1)

Future University

Cairo, Egypt

Outcomes

Primary Outcomes

Time to close extraction space

the antero-posterior movement of anterior teeth are assessed by monthly taken models and patient record sheets

Time frame: from pre to post retraction ( an average of 10 - 12 months)

Secondary Outcomes

Anchorage loss

Digitalized dental models taken before and after completion of retraction will be measured by identifying landmarks and reference lines and planes ( measured in mm)

Time frame: From pre to post retraction ( an average of 10- 12 months)

pain of intervention

Each patient was informed to fill a questionnaire regarding treatment experience in Visual analogue scale scoring from (0 -10) 0 means no pain and 10 means severe pain

Time frame: From pre to post retraction ( an average of 10 - 12 months)

Data from ClinicalTrials.gov

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