# Botox for Gummy Smile

> **NCT03284047** · NA · WITHDRAWN · sponsor: **Northwestern University**

## Conditions studied

- Gingival Exposure

## Interventions

- **DRUG:** Botulinum toxin type A

## Key facts

- **NCT ID:** NCT03284047
- **Lead sponsor:** Northwestern University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2019-04-24
- **Primary completion:** 2019-04-24
- **Final completion:** 2019-04-24
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** The study never started.
- **Last updated:** 2021-12-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03284047

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03284047, "Botox for Gummy Smile". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT03284047. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*