# Botulinum Toxin in the Treatment of Gingival Smile

> **NCT03812965** · PHASE2 · COMPLETED · sponsor: **Universidade Ibirapuera** · enrollment: 20 (actual)

## Conditions studied

- Smiling

## Interventions

- **DRUG:** Botulinum toxin type A

## Key facts

- **NCT ID:** NCT03812965
- **Lead sponsor:** Universidade Ibirapuera
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2018-08-01
- **Primary completion:** 2019-02-08
- **Final completion:** 2019-04-08
- **Target enrollment:** 20 (ACTUAL)
- **Last updated:** 2019-06-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03812965

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03812965, "Botulinum Toxin in the Treatment of Gingival Smile". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT03812965. Licensed CC0.

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