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Updated: Feb 4, 2026

Ultrasound-guided Botulinum Toxin-A Injections: A Method of Treating Sialorrhea
Published on: November 9, 2016
Botulinum Toxin Type-A as an alternative treatment for gummy smile: a case report
Juliane P Araujo1, Jacqueline Cruz, Jefferson X Oliveira
1Discipline of Radiology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP. jupiragine@usp.br.
Abstract:
In some cases of dentofacial deformities such as vertical maxillary excess, administration of botulinum toxin has been used as an effective minimally invasive technique to improve the aesthetic disorder of gummy smile. This article presents a case of a woman with excessive gingival exhibition during the smile related to vertical maxillary excess and hyperactive upper lip elevator muscles. This patient was treated using botulinum toxin type A (BT) to camouflage the deformity and improve her facial aesthetic. This therapeutic option proved to be effective and should be a good alternative for patients.
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