Therapeutic effects of botulinum toxin type A in subjects with gummy smile: A longitudinal sEMG approach

Background. The present study aimed to assess the effect of botulinum toxin type A (BTX-A) for the management of gummy smile and evaluate its stability after administrating BTX-A clinically and using electromyography. Methods. The investigators designed and implemented a prospective clinical study on 10 patients with a gummy smile. Patients with different types of gummy smile were injected with BTX-A in the levator muscles of the upper lip and were followed for six months. The effect of BTX-A was evaluated clinically and using electromyography preoperatively and after two weeks and three and six months. Statistical analyses were carried out using repeated measures ANOVA and post hoc Bonferroni tests for pairwise comparisons. Results. The sample consisted of 10 patients with an anterior gummy smile (n=3), posterior gummy smile (n=2), mixed gummy smile (n=3), and asymmetrical gummy smile (n=2). There were significant differences (P<0.001) between the mean gingival display and compound muscle action potential at two-weeks and three-month follow-ups. The maximum result was obtained at the two-week interval. The mean gingival display and C-MAP values increased slightly at the three-month postoperative interval and gradually increased to the baseline values at six-month follow-up. Conclusion. BTX-A is an effective, minimally invasive, and temporary treatment modality for gummy smiles. The electromyographic study is a convenient method for assessing changes in the upper lip muscle contractility to quantify the effect of BTX-A in the treatment of gummy smile.

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To evaluate the effect and longevity of Botulinum toxin type A (Botox®) in the management of gummy smile – A longitudinal study upto 4 years follow-up

Journal of Oral Biology and Craniofacial Research ◽

10.1016/j.jobcr.2021.02.006 ◽

2021 ◽

Vol 11 (2) ◽

pp. 219-224

Author(s):

Athreya Rajagopal ◽

Manoj Goyal ◽

Sagrika Shukla ◽

Neeti Mittal

Keyword(s):

Botulinum Toxin ◽

Longitudinal Study ◽

Botulinum Toxin Type A ◽

Type A ◽

Botulinum Toxin Type ◽

Gummy Smile

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Type A Botulinum Toxin as Complement to Gingivoplasty in the Treatment of Gummy Smile. Case Report

Universitas Odontologica ◽

10.11144/javeriana.uo37-78.tabt ◽

2018 ◽

Vol 37 (78) ◽

Author(s):

Irineu Gregnanin Pedron

Keyword(s):

Botulinum Toxin ◽

Dental Treatment ◽

Therapeutic Option ◽

Botulinum Toxin Type A ◽

Type A ◽

Botulinum Toxin Type ◽

Self Esteem ◽

Gingival Tissue ◽

Gummy Smile

Background: The pursuit of esthetic excellence has become a major goal in the dental treatment. Gummy smile is one of the complaints of the patients, since such a situation can influence self-esteem and social relationships. The beauty of the smile is not only constituted by the shape, position and size of the teeth, but also based on the characteristics of the gingival tissue and conformation of the lips, which should be as harmonious as teeth. The development of new more conservative techniques may provide a better therapeutic option than surgical procedures, such as the application of botulinum toxin, in the treatment of gummy smile. Purpose: to present the case of a patient who presented dentogingival discrepancy caused by gingival overgrowth and gummy smile, treated by gingivoplasty and complemented by application of botulinum toxin. Description of the case: The gingivoplasty was performed followed by the application of botulinum toxin type A. Results: The gingivoplasty resulted of the improvement of gingival arches and the application of botulinum toxin promoted the dehiscence of upper lip, reducing the gingival exposure. Conclusions: The application of botulinum toxin, associated with gingivoplasty, is an important tool at the management of gummy smile, optimizing smile harmony and achieving improved self-esteem and quality of life.

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Application of botulinum toxin type A in gummy smile: case report

RGO - Revista Gaúcha de Odontologia ◽

10.1590/1981-86372019000133555 ◽

2019 ◽

Vol 67 ◽

Author(s):

David Costa MOREIRA ◽

Francielle Silva POSSIDÔNIO ◽

Fabio Silveira de SOUZA ◽

Angela Mitie Otta KINOSHITA ◽

Elcia Maria Varize SILVEIRA

Keyword(s):

Botulinum Toxin ◽

Research Study ◽

Botulinum Toxin Type A ◽

Alternative Therapy ◽

Type A ◽

Botulinum Toxin Type ◽

Treatment Method ◽

Self Esteem ◽

Anterior Teeth ◽

Gummy Smile

ABSTRACT Gummy smile is one of the major complaints of patients, due to its influence on the self-esteem. It is known that it has a multifactorial cause and can be present in the excessive vertical growth of the maxilla, excessive labial contraction, short upper lip and extrusion of the anterior teeth. The use of the botulinum toxin can be associated with additional treatments or be applied individually, according to the need of each patient. The goal of this research study was to present a clinical case using botulinum toxin type A as an alternative therapy to correct the gummy smile. A 22-year-old patient, presenting vertical maxillary growth, reporting aesthetic discomfort while smiling, chose for an alternative treatment therapy with the application of botulinum toxin to correct the accentuated gingival display. The results show that the toxin is a satisfactory treatment option and its indication is considered a fast, effective, easy and safe treatment method, being a more conservative approach compared to surgical procedures.

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