Introduction: The aim of this in vitro study was to compare the elastic properties of the load-deflection ratio of orthodontic wires of different lot numbers and the same commercial brand. Methods: A total of 40 nickel-titanium (NiTi) wire segments (Morelli OrtodontiaTM - Sorocaba, SP, Brazil), 0.016-in in diameter were used. Groups were sorted according to lot numbers (lots 1, 2, 3 and 4). 28-mm length segments from the straight portion (ends) of archwires were used. Deflection tests were performed in an EMIC universal testing machine with 5-N load cell at 1 mm/minute speed. Force at deactivation was recorded at 0.5, 1, 2 and 3 mm deflection. Analysis of variance (ANOVA) was used to compare differences between group means. Results: When comparing the force of groups at the same deflection (3, 2 and 1 mm), during deactivation, no statistical differences were found. Conclusion: There are no changes in the elastic properties of different lots of the same commercial brand; thus, the use of different lots of the orthodontic wires used in this research does not compromise the final outcomes of the load-deflection ratio.
Objetivo: Verificar o perfil epidemiológico dos pacientes com necessidades especiais, assistidos em um Centro de Especialidade Odontológica (CEO) na região norte do Brasil, submetidos à anestesia geral balanceada, para a realização de procedimentos odontológicos, entre os anos de 2019 a 2021. Material e Método: Trata-se de um estudo quantitativo descritivo com utilização de dados secundários. Os dados foram consultados em prontuários eletrônicos do centro, e as informações coletadas foram: idade, sexo e tipo de necessidade especial. Resultados: Foram analisados 260 prontuários. 78% dos pacientes estavam na faixa etária de 0 a 20 anos. A maioria era do sexo masculino (67%) e a necessidade especial mais prevalente foi o autismo. Conclusão: Conclui-se que estes pacientes precisam de abordagens multidisciplinares, sendo o papel do cirurgião-dentista indispensável para a prevenção de doenças bucais e manutenção de sua saúde oral. Sendo a anestesia geral um dos métodos de abordagens para o tratamento odontológico quando o atendimento ambulatorial não é possível.
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