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Botulinum Toxin Type A for Gummy Smile
NCT03284047Withdrawn
- Sponsor
- Northwestern University
- Start
- Apr 2019
- Primary completion
- Apr 2019
- Modality
- Recombinant Proteins and Enzymes
- Countries
- 1
01
Overview
Randomised trial of botulinum toxin type A in excessive gingival display (3 arms), sponsored by Northwestern University. Primary endpoint: Reduction of the upper gum exposure at 12 weeks. Planned start Apr 2019; status: withdrawn.
02
Drugs
botulinum toxin type A
03
Conditions
excessive gingival display
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