EMG-guided Botox Injection Versus Conventional Botox Injection in Gummy Smile Patients

NCT ID: NCT06075134

Last Updated: 2023-10-10

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

32 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-11-30

Study Completion Date

2024-08-31

Brief Summary

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The goal of this clinical trial is to compare the effect of EMG-guided Botox injection with conventional Botox injection in Yonsei point, in patients with excessive gingival display.

The main question it aims to answer is:

• Does the use of electromyography (EMG) as a guide during Botox injection for patients with gummy smile has better effect than conventional injection in Yonsei point?

Participants will be randomized in equal proportions between intervention and control groups.

* Preoperative assessment of amount of gingival display, lip length (philtrum and vermilion length), and smile type.
* For the intervention group, EMG readings will be done in Clinical Neurophysiology Department, Kasr Al-Ainy Hospital EMG-guided Botox injection (Intervention group). Conventional Botox injection in Yonsei point (Control group).

Detailed Description

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Conditions

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Excessive Gingival Display

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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EMG-guided Botox injection

Botox injection in patients with gummy smile will be done under electromyography guidance to target the most hyperactive and effective muscle that is the chief factor causing the condition.

Group Type EXPERIMENTAL

Botox injection

Intervention Type PROCEDURE

Botox injection

EMG

Intervention Type DEVICE

Quantitative Electromyography

Zinc Supplement

Intervention Type DRUG

To increase efficacy of Botox

Conventional Botox injection in Yonsei point

Conventional injection of Botox is located in Yonsei point, which is the center of a triangle formed by the convergence of Levator labii superioris alaeque nasi (LLSAN), levator labii superioris (LLS), zygomaticus minor (ZMn), muscles, and is located 1 cm lateral to the ala of the nose horizontally and 3 cm above the lip line vertically.

Group Type ACTIVE_COMPARATOR

Botox injection

Intervention Type PROCEDURE

Botox injection

Zinc Supplement

Intervention Type DRUG

To increase efficacy of Botox

Interventions

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Botox injection

Botox injection

Intervention Type PROCEDURE

EMG

Quantitative Electromyography

Intervention Type DEVICE

Zinc Supplement

To increase efficacy of Botox

Intervention Type DRUG

Other Intervention Names

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Botulinum toxin injection Electromyography Zinc supplement in the form of tablets

Eligibility Criteria

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Inclusion Criteria

* Patients with excessive gingival display.
* Patients with esthetic concerns.
* Patients with mild to moderate VME (vertical maxillary excess).
* Normal clinical crown dimensions.
* Patients aged 18 to 50.
* Systemically healthy patients.
* Non-smokers.

Exclusion Criteria

* Patients with severe VME (vertical maxillary excess).
* Pregnant and breastfeeding women.
* Patients with gingival inflammation and/or enlargement.
* Inflammation or infection at the site of injection.
* Patients with known allergy to any of the components of Botox (i.e., saline, human albumin, lactose and sodium succinate).
* Patients using anticholinesterase or other agents affecting neuromuscular transmission.
* Psychologically unstable patients or those who have unrealistic expectations and questionable motives.
* Patients with neuromuscular disorders (e.g., myasthenia gravis, Eaton-Lambert syndrome).
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Cairo University

OTHER

Sponsor Role lead

Responsible Party

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Sherry Fayez Akhnokh

Periodontology Resident

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Sherry Fayez Akhnokh, BSc

Role: PRINCIPAL_INVESTIGATOR

Cairo University

Noha Ghallab, PhD

Role: STUDY_DIRECTOR

Cairo University

Nesma Shemais, PhD

Role: STUDY_CHAIR

Cairo University

Central Contacts

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Sherry Fayez Akhnokh, BSc

Role: CONTACT

+0201284857175

Nesma Shemais, PhD

Role: CONTACT

Other Identifiers

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SFAkhnokh

Identifier Type: -

Identifier Source: org_study_id

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