Dental and skeletal components of Class II open bite treatment with a modified Thurow appliance

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Padrão rotacional das estruturas dentofaciais natural e induzido pelo tratamento com aparelho de Thurow modificado: estudo cefalométrico com implantes metálicos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação do crescimento natural e induzido pelo aparelho extrabucal de thurow modificado em crianças hiperdivergentes com má-oclusão classe II, divisão 1 de angle

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Tratamento da classe II hiperdivergente com o aparelho extra bucal de Thurow modificado

Objectives: natural dentofacial changes and that induced by the Thurow modified extra oral appliance (TMEOA) were evaluated in this prospective study. Methodology: the data consisted of fifteen Class II division 1 children 7 to 10 years old, with anterior open bite and hiperdivergent facial pattern treated with the Thurow appliance and of fifteen Class II division 1 children followed longitudinally from 6 to 12 years of age without treatment (Burlington Growth Centre, Toronto University, Canada). The analyses were based in traditional measurements obtained in lateral cephalometric radiographs scanned with the aid of the software Radiocef Studio®. Radiographs were taken in the beginning and after 1 year of treatment for the treated group and at the 6, 9 and 12 years of age for the control group. Results: the data analysis showed that the TMEOA significantly reduced the SNA, ANB, AOBO, SNPOc SNPM, SGO/NMe, OJ e OB. On the other hand the appliance did not interfere with the SNB e SNPP. The natural growth promoted significant change in the ANB, AOBO, SNPOc, OJ e OB from 6 to 9 years and in the SNB, SNPOc e SGo/NMe from 9 to 12 years. The restriction of the maxillary growth (SNA), reduction of the skeletal discrepancy (ANB) and the reduction of the overjet (OJ) were significant with the treatment considering the natural growth as verified in the control group. Conclusion: the TMEOA corrected the skeletal Class II malocclusion by maxillary restriction, reducing the overjet, closing the anterior open bite and decreasing both the hyper divergent facial pattern and mandible plane inclination.

Aparelho de Thurow modificado e aparelho ortodôntico fixo no tratamento da classe II com mordida aberta anterior

This work had aim to present two clinical cases with open bite Class II malocclusion that treated in the phase of the mixed dentition with the modified Thurow appliance and in the permanent dentition with fixed appliance. The dentoskeletal effects of these appliances were carefully analyzed with the aid of metallic implants inserted in both maxilla and mandible. The correction of the malocclusion and the improvement of the skeletal, dental and facial relationship were observed in both cases. The modified Thurow appliance followed by fixed-appliance as a two-phase treatment protocol revealed to be an effective treatment approach for the two young people that initially presented a Class II division 1 malocclusion associated to anterior open bite presented.

Alterações dentárias e esqueléticas no tratamento da má oclusão de classe II divisão 1 com aparelho extrabucal de Thurow modificado

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeitos dentários dos aparelhos extrabucais removíveis no tratamento da Classe II

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Short-term in situ/ex vivo study of the anticariogenic potential of a resin-modified glass-ionomer cement associated with adhesive systems

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)