Josete Meira | Universidade de Sao Paulo (original) (raw)

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Papers by Josete Meira

Research paper thumbnail of Importância da simulação do ligamento periodontal em modelo de elementos finitos utilizado para previsão de fratura radicular em pré-molar superior endodonticamente tratado

Research paper thumbnail of Finite-Element Analysis in Dentistry

Handbook of Oral Biomaterials, 2014

Research paper thumbnail of Intrusion of overerupted periodontally compromised posterior teeth using orthodontic mini implants: A mechanobiological finite element study

Orthodontics & Craniofacial Research, Sep 8, 2022

IntroductionThe intrusion of posterior teeth had been considered challenging up to the developmen... more IntroductionThe intrusion of posterior teeth had been considered challenging up to the development of orthodontic mini implants. In periodontally compromised teeth, the challenge is even greater, because of the root resorption risk due to periodontal ligament over‐compression. Still, the precise strategy to determine the force reduction level remains uncertain.ObjectiveThe objective of the study was to determine, by a finite element analysis (FEA), the force reduction needed to avoid root resorption and maintain the efficiency of orthodontic mechanics of periodontally compromised teeth similar to the sound one.MethodsAn anatomical model was constructed representing a premolar inserted into a maxillary bone. Based on the initial model (R0), three bone height loss conditions were simulated (R2 = 2 mm, R4 = 4 mm, and R6 = 6 mm). Two intrusive movements were simulated: pure intrusion (bilateral mini implant) and uncontrolled‐tipping intrusion (buccal mini implant). The hydrostatic stress at the periodontal ligament was used to evaluate the risk of root resorption due to over‐compression.ResultsFor bilateral mini implant intrusion, the force had to be decreased by 16%, 32% and 48% for R2, R4 and R6, respectively. For buccal mini implant intrusion, the required reductions were higher (20%, 36% and 56%). A linear relationship between the intrusive force reduction and the alveolar bone height loss was observed in both intrusion mechanics.ConclusionsAccording to the FE results, 8% or 9.3% of force reduction for each millimetre of bone height loss is suggested for intrusion with bilateral or buccal mini implant, respectively. The buccal mini implant anchorage must be associated with a supplemental strategy to avoid buccal crown tipping.

Research paper thumbnail of Microinfiltração e dureza Vickers em restaurações diretas de classe II

Pesquisa Odontológica Brasileira, 2000

Research paper thumbnail of Efeito férula e efeito espelho em pinos intra-radiculares

Brazilian Oral Research, 2008

Research paper thumbnail of Influência do módulo de elasticidade do pino e da direção do carregamento na concentração de tensões na raiz

RPG Revista da Pós-Graduação, 2006

Research paper thumbnail of Teste de lascamento da aresta em porcelana sobre zircônia e metal: análise por elementos finitos

Research paper thumbnail of O mercúrio no consultório dentário: minimizando os riscos

Revista da Associação Paulista de Cirurgiões Dentistas, 2005

Research paper thumbnail of Estudo por elementos finitos da influência da férula na fratura radicular vertical

Research paper thumbnail of Influência dos contatos oclusais na distribuição de tensões em porcelana sobre zircônia: Análise por elementos finitos

Research paper thumbnail of Influência do protocolo de resfriamento e do material de infraestrutura nas tensões residuais térmicas em porcelanas de cobertura

Brazilian Oral Research, 2016

Research paper thumbnail of Analyze the presence of occlusal interference and non-carious cervical lesions

Research paper thumbnail of Biomechanical behavior of anterior teeth restored with ceramic veneers

Research paper thumbnail of Marginal fit of cast titanium copings related to investments and casting techniques

Revista da Faculdade de Odontologia - UPF, Apr 6, 2011

Research paper thumbnail of Peri-implant bone resorption risk of anterior maxilla narrow single implants: a finite-element analysis

Biomaterial Investigations in Dentistry

Research paper thumbnail of Avaliação por elementos finitos da influência da geometria e espessura nas tensões térmica em porcelana sobre zircônia

Research paper thumbnail of Análise de elementos finitos em teste de resistência flexural de resina composta

Pesquisa Odontológica Brasileira, 2001

Research paper thumbnail of Influência da perda de estrutura dental e material restaurador no comportamento biomecânico de pré-molar: Análise por elemento finito

Brazilian Oral Research, 2011

Research paper thumbnail of Diferença de unidades de cor ('delta'E) de resinas acrílicas em função de proporções, espessuras e marcas

Research paper thumbnail of Microleakage of class II composite restorations: different preparations of the cavosurface enamel margins

Journal of Dental Research, 2000

Research paper thumbnail of Importância da simulação do ligamento periodontal em modelo de elementos finitos utilizado para previsão de fratura radicular em pré-molar superior endodonticamente tratado

Research paper thumbnail of Finite-Element Analysis in Dentistry

Handbook of Oral Biomaterials, 2014

Research paper thumbnail of Intrusion of overerupted periodontally compromised posterior teeth using orthodontic mini implants: A mechanobiological finite element study

Orthodontics & Craniofacial Research, Sep 8, 2022

IntroductionThe intrusion of posterior teeth had been considered challenging up to the developmen... more IntroductionThe intrusion of posterior teeth had been considered challenging up to the development of orthodontic mini implants. In periodontally compromised teeth, the challenge is even greater, because of the root resorption risk due to periodontal ligament over‐compression. Still, the precise strategy to determine the force reduction level remains uncertain.ObjectiveThe objective of the study was to determine, by a finite element analysis (FEA), the force reduction needed to avoid root resorption and maintain the efficiency of orthodontic mechanics of periodontally compromised teeth similar to the sound one.MethodsAn anatomical model was constructed representing a premolar inserted into a maxillary bone. Based on the initial model (R0), three bone height loss conditions were simulated (R2 = 2 mm, R4 = 4 mm, and R6 = 6 mm). Two intrusive movements were simulated: pure intrusion (bilateral mini implant) and uncontrolled‐tipping intrusion (buccal mini implant). The hydrostatic stress at the periodontal ligament was used to evaluate the risk of root resorption due to over‐compression.ResultsFor bilateral mini implant intrusion, the force had to be decreased by 16%, 32% and 48% for R2, R4 and R6, respectively. For buccal mini implant intrusion, the required reductions were higher (20%, 36% and 56%). A linear relationship between the intrusive force reduction and the alveolar bone height loss was observed in both intrusion mechanics.ConclusionsAccording to the FE results, 8% or 9.3% of force reduction for each millimetre of bone height loss is suggested for intrusion with bilateral or buccal mini implant, respectively. The buccal mini implant anchorage must be associated with a supplemental strategy to avoid buccal crown tipping.

Research paper thumbnail of Microinfiltração e dureza Vickers em restaurações diretas de classe II

Pesquisa Odontológica Brasileira, 2000

Research paper thumbnail of Efeito férula e efeito espelho em pinos intra-radiculares

Brazilian Oral Research, 2008

Research paper thumbnail of Influência do módulo de elasticidade do pino e da direção do carregamento na concentração de tensões na raiz

RPG Revista da Pós-Graduação, 2006

Research paper thumbnail of Teste de lascamento da aresta em porcelana sobre zircônia e metal: análise por elementos finitos

Research paper thumbnail of O mercúrio no consultório dentário: minimizando os riscos

Revista da Associação Paulista de Cirurgiões Dentistas, 2005

Research paper thumbnail of Estudo por elementos finitos da influência da férula na fratura radicular vertical

Research paper thumbnail of Influência dos contatos oclusais na distribuição de tensões em porcelana sobre zircônia: Análise por elementos finitos

Research paper thumbnail of Influência do protocolo de resfriamento e do material de infraestrutura nas tensões residuais térmicas em porcelanas de cobertura

Brazilian Oral Research, 2016

Research paper thumbnail of Analyze the presence of occlusal interference and non-carious cervical lesions

Research paper thumbnail of Biomechanical behavior of anterior teeth restored with ceramic veneers

Research paper thumbnail of Marginal fit of cast titanium copings related to investments and casting techniques

Revista da Faculdade de Odontologia - UPF, Apr 6, 2011

Research paper thumbnail of Peri-implant bone resorption risk of anterior maxilla narrow single implants: a finite-element analysis

Biomaterial Investigations in Dentistry

Research paper thumbnail of Avaliação por elementos finitos da influência da geometria e espessura nas tensões térmica em porcelana sobre zircônia

Research paper thumbnail of Análise de elementos finitos em teste de resistência flexural de resina composta

Pesquisa Odontológica Brasileira, 2001

Research paper thumbnail of Influência da perda de estrutura dental e material restaurador no comportamento biomecânico de pré-molar: Análise por elemento finito

Brazilian Oral Research, 2011

Research paper thumbnail of Diferença de unidades de cor ('delta'E) de resinas acrílicas em função de proporções, espessuras e marcas

Research paper thumbnail of Microleakage of class II composite restorations: different preparations of the cavosurface enamel margins

Journal of Dental Research, 2000

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