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Evaluation of Mini and Macro-esthetics Following En- Masse Retraction Versus Two Step Retraction

NCT ID: NCT05150665

Last Updated: 2021-12-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-10-29

Study Completion Date

2021-12-28

Brief Summary

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There's a scarcity in literature concerning mini-esthetics specially maxillary gingival display changes following en-masse retraction and two-step retraction. The purpose of this study is to determine, In orthodontic patients with maxillary protrusion, which technique of retraction will result in better esthetics upon smiling following en-masse retraction or two step retraction mechanics.

Detailed Description

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This study will be conducted in order to evaluate which technique of retraction will provide better outcome regarding mini and macro esthetics. In terms of mini esthetics, posed smiles will be analyzed to evaluate maxillary gingival display, as well as the analysis of smile arc, buccal corridor, inter-labial gap. In terms of macro esthetics, frontal and profile poses will be assessed to evaluate the nasolabial angle, mentolabial angle and upper and lower lip protrusion/ E- plane.

Conditions

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Bimaxillary Protrusion

Keywords

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Mini-esthetics Macro-esthetics En-masse Retraction Two step retraction Extra-oral photographs Adobe photoshop CC 2017 software Lateral Cephalometric Radiographs

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors
Only the outcome assessors will be blind. The patients name will be sealed from pre and post photographs and cephalometric radiographs. Then two assessors will carry out, blindly and independently, the measurements and analysis of the study

Study Groups

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En-Masse Retraction

Six anterior teeth (en-Masse) retracted using a crimpable hook distal to the upper lateral incisor and a power chain

Group Type EXPERIMENTAL

En-masse retraction

Intervention Type 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 200 g per side) extending between the crimpable hooks and the miniscrew

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 the upper lateral incisor and a power chain

Group Type EXPERIMENTAL

Two step Retraction

Intervention Type PROCEDURE

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

Interventions

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En-masse retraction

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 200 g per side) extending between the crimpable hooks and the miniscrew

Intervention Type PROCEDURE

Two step Retraction

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

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Adults and Adolescent patients (both genders)
* Age range (16-24)
* Patients 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 requiring maximum anchorage during retraction.
* Good general and oral health

Exclusion Criteria

* Patients suffering from any neural disorders or systemic diseases interfering with tooth movement.
* Patients with soft tissue problems such as cleft-palate patients
* 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.
Minimum Eligible Age

16 Years

Maximum Eligible Age

24 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Future University in Egypt

OTHER

Sponsor Role lead

Responsible Party

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Sara Usama Saeed Imam

Principle Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Yehya mostafa, Professor and chairman

Role: STUDY_DIRECTOR

Future University in Egypt

Locations

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Future University In Egypt

Cairo, , Egypt

Site Status

Countries

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Egypt

Other Identifiers

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FUE.REC(26)/12-2019

Identifier Type: -

Identifier Source: org_study_id