All records were analyzed by a single examiner in order to verify whether the SEP had been carried out with extraction of either permanent teeth or deciduous teeth only.
#SERIAL PES 4 22 SERIAL SERIAL#
METHODS: The sample was composed of orthodontic records of 70 patients in the permanent dentition whose treatment included the serial extraction program (SEP) in the mixed dentition.
OBJECTIVE: To verify the amount of patients who had to undergo extraction of permanent teeth (premolars) in a population of patients treated with extraction of deciduous teeth for correction of incisor crowding in the mixed dentition, as well as to analyze the possibly related variables. CONCLUSÃO: a discrepância de modelo representou a principal determinante de extração de pré-molares no PES.ĭentição mista Má oclusão Extração Seriada A análise estatística não mostrou associação significativa entre as variáveis estudadas e a necessidade de extração de dentes permanentes, com exceção da variável discrepância de modelo. RESULTADOS: dos pacientes que haviam sido tratados com extração de dentes decíduos para a correção do apinhamento na dentição mista, 70% necessitaram de extração de dentes permanentes. Os resultados foram considerados para p<0,05. Verificou-se a associação entre a extração de dentes permanentes e as variáveis padrão facial relação sagital entre as arcadas dentárias IMPA proporção tamanho do segundo molar permanente inferior/espaço retromolar mecânica de controle de espaço e discrepância de modelo (teste exato de Fisher para as variáveis categóricas e modelo de regressão logística para as variáveis numéricas). Todos os prontuários foram analisados por um único examinador, no intuito de verificar se o PES havia sido cumprido com a extração de dentes permanentes ou se havia sido realizada apenas extração de dentes decíduos. MÉTODOS: a amostra foi composta por documentações ortodônticas de 70 pacientes na dentição permanente, cujo tratamento iniciou-se na dentição mista com planejamento de um programa de extrações seriadas (PES). The machine is available with two different powder handling options: a gravity based and a vacuum based solution, that both keep downtime between each build job to a minimum.OBJETIVO: verificar o percentual de pacientes que necessitaram extração de dentes permanentes, pré-molares, dentre aqueles tratados com extração de dentes decíduos para correção do apinhamento primário na dentição mista, bem como analisar as possíveis variáveis relacionadas. To facilitate the integration of the NXG XII 600 into factories and supply chains, several automated features like an automatic build cylinder exchange, automatic build start as well as an external preheating station and external depowder station are part of the solution. The potential cost reduction and productivity gains that this machine offers you means for the first time in the history of additive manufacturing, you can have true serial production fully integrated into your supply chain.” Up until now, the limit had been considered to be that of a quad laser system – what we deliver here with 12KW of installed laser power is truly ground-breaking and a major step forward, not just for additive manufacturing, but for manufacturing in general. Sam O’Leary, COO at SLM Solutions, commented: “The NXG Xll 600 is a revolution in industrial manufacturing. Producing a higher yield of parts in a single build job thereby enables mass production at low cost-per-part. It enables large overlap and is based on a tailor-made laser scanning system to best fit the build area.Īll 12 optics provide spot size definition via a double lens system called zoom function, enabling customers to choose between different spot sizes in the focal plane which boosts build-up rates to 1000 cc/h and more.
The new machine was designed from scratch for serial production and features a whole new optic system, the most compact on the market.
It is designed to be used in serial production for high-volume applications as well as for printing large parts, which opens up new applications in the automotive and aerospace industries and paves the way to industrialised serial production. NXG XII 600 is thought to be the fastest machine on the market, 20 times faster compared to a single laser machine and equipped with innovative technical features like the zoom function to achieve highest productivity and reliability. The machine is equipped with 12 lasers with 1kW each and a square build envelope of 600圆00圆00mm. Selective laser melting specialist SLM Solutions has introduced its new machine NXG XII 600, which is now available commercially.
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