Duration of effectiveness of Botulinum toxin type A in excessive gingival display: a systematic review and meta-analysis

• Main Authors: Taísa Figueiredo Chagas (Author), Natalia Valli de Almeida (Author), Cinthia Oliveira Lisboa (Author), Daniele Masterson Tavares Pereira Ferreira (Author), Claudia Trindade Mattos (Author), José Nelson Mucha (Author)
• Format: Book
• Published: Sociedade Brasileira de Pesquisa Odontológica, 2018-05-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Botulinum toxin type A is effective in reducing excessive gingival display caused by hyperfunctional upper lip elevator muscles; however, this effect is transient. This study aimed to determine the duration of the effectiveness of botulinum toxin type A on a gummy smile. A systematic search...