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Toxina botulínica e 1/3 inferior da face: estudo clínico
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Abstract(s)
A Harmonização Orofacial visa criar harmonia entre as estruturas orais e crânio-cérvico-faciais e faz, de forma crescente, parte do universo da Medicina Dentária. O objetivo deste estudo é discutir o papel do envolvimento da musculatura mímica facial perioral na criação de um sorriso estético e identificar pontos de maior relevância anatómica.
Após a aplicação de um protocolo de toxina botulínica em quatro grupos: a) Sorriso gengival; b) Mento (mentonianos e impacto no mento); c) Depressor do ângulo da boca (depressor do ângulo da boca e impacto nas comissuras labiais); d) Orbicular superior do lábio (orbicular superior do lábio e impacto no lábio superior), os resultados clínicos foram comparados.
Realizou-se um estudo transversal em pacientes (n=41), num ambiente clínico, submetidos à administração de toxina botulínica. A avaliação do antes e depois foi baseada no registo fotográfico.
Nos resultados, a análise dos dados revelou que a aplicação da toxina botulínica teve um impacto significativo em três dos quatro grupos estudados. No grupo do sorriso gengival, houve uma redução notável na exposição gengival, resultando numa melhoria estética significativa. No grupo Mento, observou-se uma diminuição substancial na tensão muscular, levando a um contorno mais suave e natural do queixo. No grupo Depressor do Ângulo da Boca, a intervenção proporcionou uma redução eficaz na expressão de tristeza e uma elevação das comissuras labiais, melhorando o sorriso global e a aparência do 1/3 inferior da face.
No grupo Orbicular do Lábio Superior, a intervenção não resultou numa redução significativa da contração muscular, o que levou a uma menor melhoria estética e funcional em comparação com os outros grupos.
Em conclusão, podemos afirmar que a aplicação de toxina botulínica mostrou-se eficaz e segura para a harmonização estética e funcional dos músculos periorais, com resultados positivos significativos em três dos quatro grupos estudados. A redução na contração muscular contribuiu para uma melhoria na estética do sorriso e nas características faciais, conforme avaliado pelos registos fotográficos. A ausência de efeitos adversos significativos confirma a segurança da toxina botulínica como uma opção viável e eficaz para a harmonização orofacial. Assim, os resultados sustentam a utilização desta técnica como parte de um protocolo integrado para o desenvolvimento de um sorriso estético e funcional, embora mais pesquisas sejam necessárias para otimizar os resultados no grupo Orbicular do Lábio Superior.
Orofacial Harmonization aims to create harmony between oral and cranio-cervico-facial structures and is increasingly becoming part of the universe of Dental Medicine. The objective of this study is to discuss the role of the involvement of the perioral mimetic facial muscles in creating an aesthetic smile and to identify points of greater anatomical relevance. After the application of a botulinum toxin protocol in four groups: a) Gummy Smile; b) Chin (mentalis and impact on the chin); c) Depressor Anguli Oris (depressor anguli oris and impact on the labial commissures); d) Orbicularis Oris Superior (orbicularis oris superior and impact on the upper lip), clinical results were compared. A cross-sectional study was conducted with patients (n=41) in a clinical setting, who underwent botulinum toxin administration. The before and after evaluation was based on photographic records. The results revealed that the application of botulinum toxin had a significant impact in three of the four groups studied. In the Gummy Smile group, there was a notable reduction in gingival exposure, resulting in a significant aesthetic improvement. In the Chin group, there was a substantial decrease in muscle tension, leading to a smoother and more natural chin contour. In the Depressor Anguli Oris group, the intervention effectively reduced the expression of sadness and lifted the labial commissures, improving the overall smile and the appearance of the lower third of the face. In the Orbicularis Oris Superior group, the intervention did not result in a significant reduction of muscle contraction, which led to less aesthetic and functional improvement compared to the other groups. In conclusion, we can affirm that the application of botulinum toxin proved to be effective and safe for the aesthetic and functional harmonization of the perioral muscles, with significant positive results in three of the four groups studied. The reduction in muscle contraction contributed to an improvement in the aesthetics of the smile and facial characteristics, as evaluated by the photographic records. The absence of significant adverse effects confirms the safety of botulinum toxin as a viable and effective option for orofacial harmonization. Thus, the results support the use of this technique as part of an integrated protocol for the development of an aesthetic and functional smile, although further research is needed to optimize results in the Orbicularis Oris Superior group.
Orofacial Harmonization aims to create harmony between oral and cranio-cervico-facial structures and is increasingly becoming part of the universe of Dental Medicine. The objective of this study is to discuss the role of the involvement of the perioral mimetic facial muscles in creating an aesthetic smile and to identify points of greater anatomical relevance. After the application of a botulinum toxin protocol in four groups: a) Gummy Smile; b) Chin (mentalis and impact on the chin); c) Depressor Anguli Oris (depressor anguli oris and impact on the labial commissures); d) Orbicularis Oris Superior (orbicularis oris superior and impact on the upper lip), clinical results were compared. A cross-sectional study was conducted with patients (n=41) in a clinical setting, who underwent botulinum toxin administration. The before and after evaluation was based on photographic records. The results revealed that the application of botulinum toxin had a significant impact in three of the four groups studied. In the Gummy Smile group, there was a notable reduction in gingival exposure, resulting in a significant aesthetic improvement. In the Chin group, there was a substantial decrease in muscle tension, leading to a smoother and more natural chin contour. In the Depressor Anguli Oris group, the intervention effectively reduced the expression of sadness and lifted the labial commissures, improving the overall smile and the appearance of the lower third of the face. In the Orbicularis Oris Superior group, the intervention did not result in a significant reduction of muscle contraction, which led to less aesthetic and functional improvement compared to the other groups. In conclusion, we can affirm that the application of botulinum toxin proved to be effective and safe for the aesthetic and functional harmonization of the perioral muscles, with significant positive results in three of the four groups studied. The reduction in muscle contraction contributed to an improvement in the aesthetics of the smile and facial characteristics, as evaluated by the photographic records. The absence of significant adverse effects confirms the safety of botulinum toxin as a viable and effective option for orofacial harmonization. Thus, the results support the use of this technique as part of an integrated protocol for the development of an aesthetic and functional smile, although further research is needed to optimize results in the Orbicularis Oris Superior group.
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Keywords
Anatomia do 1/3 inferior da face Toxina botulínica Mento Depressor do lábio inferior Sorriso gengival Código de barras Anatomy of the lower 1/3 of the face Botulinum toxin Chin Depressor of the lower lip Gummy smile Barcode