Botox for Gummy Smile
Public ClinicalTrials.gov record NCT03284047. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Evaluation of Different Doses of Botulinum Toxin Type A for the Treatment of Gummy Smile
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a two part study to measure and observe the efficacy of botulinum toxin A for the treatment of gummy smiles. Part A will randomly compare three different doses of botulinum toxin type A (abobotulinumtoxin A) for the treatment of upper anterior gummy smile with larger gingival exposure (\> 4 mm). Part B will assign one of two doses of botulinum toxin type A for participants with smaller gingival exposure (\< 4 mm). Follow-up visits with photography will occur 4 and 12 weeks after their treatment. Subjects currently living in the Chicago metropolitan area and meet inclusion/exclusion criteria will be considered for enrollment. This study is a pilot study designed to determine feasibility of this procedure.
Study identification
- NCT ID
- NCT03284047
- Recruitment status
- Withdrawn
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- Not listed
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 23, 2019
- Primary completion
- Apr 23, 2019
- Completion
- Apr 23, 2019
- Last update posted
- Dec 5, 2021
2019
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Northwestern University Department of Dermatology | Chicago | Illinois | 60611 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03284047, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 5, 2021 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03284047 live on ClinicalTrials.gov.