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Tratamento ortodôntico funcional de classe II divisão 1 em pacientes em crescimento com twin block vs aparelho miofuncional : revisão narrativa
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Abstract(s)
A má oclusão de Classe II é um dos problemas ortodônticos mais frequentes em adolescentes, sendo a Classe II, divisão 1, responsável por cerca de 30% dos casos tratados na prática clínica ortodôntica.
Na dentição mista, o desenvolvimento dessa má oclusão é um problema significativo, exigindo intervenção precoce para mitigar a sua gravidade. Essa abordagem visa reduzir a complexidade e a duração dos tratamentos ortodônticos futuros.
Os aparelhos funcionais ou miofuncionais desempenham um papel importante nesse processo, para redirecionar o crescimento dento-alveolar e esquelético e obter uma oclusão equilibrada.
O Twin Block é um aparelho funcional amplamente descrito no tratamento das Classe II esqueléticas em crescimento promovendo uma propulsão mandibular.
Mais recentemente, o sistema Myobrace, composto por aparelhos miofuncionais, tem se destacado como uma alterantiva promissora para a correção de más oclusões de Classe II divisão 1, em crianças em fase de crescimento. O sistema promove alterações funcionais na cavidade oral, que auxiliam no estímulo do
crescimento mandibular e na correção da má oclusão.
Consequentemente, este trabalho teve como objetivo avaliar a eficácia tanto do Twin Block quanto do sistema Myobrace na correção da má oclusão de Classe II divisão 1, em pacientes em crescimento, comparando vantagens, desvantagens, indicações e limitações.
Foi realizada uma pesquisa eletrónica nas bases de dados PubMed, Medline, Scopus, Cochrane Library, Web of Science, Embase, Science Direct e Google Scholar na qual apenas foram incluídos artigos publicados entre 2000 e 2025, com acesso integral disponível para consulta.
Class II malocclusion is one of the most frequent orthodontic problems in adolescents, with Class II, Division 1 accounting for approximately 30% of cases treated in routine orthodontic practice. In the mixed dentition stage, the development of this malocclusion represents a significant problem, requiring early intervention to mitigate its severity. This approach aims to reduce the complexity and duration of future orthodontic treatments. Functional or myofunctional appliances play an important role in this process by redirecting dentoalveolar and skeletal growth to achieve a balanced occlusion. The Twin Block is a widely described functional appliance for the treatment of growing skeletal Class II patients, promoting mandibular advancement. More recently, the Myobrace system, composed of myofunctional appliances, has emerged as a promising alternative for the correction of Class II Division 1 malocclusions in growing children. The system promotes functional changes in the oral cavity that help stimulate mandibular growth and correct the malocclusion. Consequently, the objective of this study was to evaluate the effectiveness of both the Twin Block and the Myobrace system in the correction of Class II Division 1 malocclusion in growing patients, comparing their advantages, disadvantages, indications, and limitations. An electronic search was carried out in the PubMed, Medline, Scopus, Cochrane Library, Web of Science, Embase, Science Direct, and Google Scholar databases, including only articles published between 2000 and 2025 with full-text access available.
Class II malocclusion is one of the most frequent orthodontic problems in adolescents, with Class II, Division 1 accounting for approximately 30% of cases treated in routine orthodontic practice. In the mixed dentition stage, the development of this malocclusion represents a significant problem, requiring early intervention to mitigate its severity. This approach aims to reduce the complexity and duration of future orthodontic treatments. Functional or myofunctional appliances play an important role in this process by redirecting dentoalveolar and skeletal growth to achieve a balanced occlusion. The Twin Block is a widely described functional appliance for the treatment of growing skeletal Class II patients, promoting mandibular advancement. More recently, the Myobrace system, composed of myofunctional appliances, has emerged as a promising alternative for the correction of Class II Division 1 malocclusions in growing children. The system promotes functional changes in the oral cavity that help stimulate mandibular growth and correct the malocclusion. Consequently, the objective of this study was to evaluate the effectiveness of both the Twin Block and the Myobrace system in the correction of Class II Division 1 malocclusion in growing patients, comparing their advantages, disadvantages, indications, and limitations. An electronic search was carried out in the PubMed, Medline, Scopus, Cochrane Library, Web of Science, Embase, Science Direct, and Google Scholar databases, including only articles published between 2000 and 2025 with full-text access available.
Description
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Keywords
Myobrace Twin block Má oclusão classe II Crianças