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

Not Applicable

Completed

• Conditions: Bimaxillary Protrusion
• Interventions: Procedure: En masse retraction; Procedure: Two-Step retraction

• Registration Number: NCT04921579
• Lead Sponsor: Future University in Egypt

Brief Summary

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

Detailed Description

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 Timeline

• Study Start: 2019-12-15
• Primary Completion: 2021-01-21
• Study Completion: 2021-01-21
• Status Verified: 2021-05
• Study First Submitted: 2021-05-31
• Study First Submitted QC: 2021-06-08
• Last Update Submitted: 2021-06-08
• Study First Posted: 2021-06-10
• Last Update Posted: 2021-06-10

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 30

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
En masse retraction	En masse retraction	six anterior teeth are retracted by en masse technique using a crimpable hook distal to upper lateral incisor and a power chain.
two step retraction	Two-Step retraction	six anterior teeth are retracted by two step technique by canine retraction followed by four anterior teeth retraction using a crimpable hook distal to upper lateral incisor and a power chain.

Primary Outcome Measures

Name	Time	Method
Time to close extraction space	from pre to post retraction ( an average of 10 - 12 months)	the antero-posterior movement of anterior teeth are assessed by monthly taken models and patient record sheets

Secondary Outcome Measures

Name	Time	Method
Anchorage loss	From pre to post retraction ( an average of 10- 12 months)	Digitalized dental models taken before and after completion of retraction will be measured by identifying landmarks and reference lines and planes ( measured in mm)
pain of intervention	From pre to post retraction ( an average of 10 - 12 months)	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

Trial Locations

Locations (1)

Future University; 🇪🇬 Cairo, Egypt