Download - Curso radiologia odontológica
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Curso de
Radiologia Odontológica
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Proteção Radiológica
Álex Moreira TN. em Radiologia
Especialista em Proteção Radiológica e docência do ensinoMestrando em Eng. Biomed.
2016
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Evolução da
radiologia
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RADIAÇÃO!!!
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Se o primeiro uso da energia elétrica fosse nestas condições, você seria a favor de seu uso?
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VOCÊ É A FAVOR DO USO DA RADIAÇÃO IONIZANTE?
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PROTEÇÃO RADIOLÓGICA
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JUSTIFICAÇÃO
Toda exposição à radiação ionizante pode levar a algum risco de dano à saúde humana, e este risco aumenta com o aumento da exposição. Conseqüentemente, qualquer aplicação da radiação que conduza a um aumento da exposição do homem deve ser justificada, para garantir que o benefício decorrente dessa aplicação seja mais importante que o risco devido ao aumento a exposição.
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LIMITAÇÃO DE DOSES INDIVIDUAIS
Limites de dose representam um valor máximo de dose, abaixo do qual os riscos decorrentes da exposição à radiação são considerados aceitáveis. No caso das radiações ionizantes, são estabelecidos limites de dose anuais máximos admissíveis (LAMA), que são valores de dose às quais os indivíduos podem ficar expostos, sem que isto resulte em um dano à sua saúde, durante toda sua vida.
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OTIMIZAÇÃO DA PROTEÇÃO RADIOLÓGICA
Ainda que a aplicação das radiações ionizantes seja justificada e que os limites de dose sejam obedecidos, é necessário otimizar os níveis de radiação, ou seja, a exposição de indivíduos a fontes de radiação deve ser mantido “tão baixo quanto razoavelmente exeqüível”, filosofia ALARA (As Low as Reasonably Achievable).
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PREVENÇÃO DE ACIDENTES
No projeto e operação de equipamentos e de instalações deve-se minimizar a probabilidade de erros humanos que levem à ocorrência de exposições acidentais.
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Interação com raios X
Raios X são radiações eletromagnéticas.
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RADIOPROTEÇÃO
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SAIBA COMO SE PROTEGER
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BLINDAGENS DA RADIAÇÃO IONIZANTE
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•• Para pacientes expostos à radiografia panorâmica.
Equivalência em chumbo de 0,25mmPb ou 0,50mmPb.
•
Avental odontológico
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AVENTAL ODONTOLÓGICO
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PROTEÇÃO RADIOLÓGICAProfissional
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LUVA PLUMBÍFERA
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PROTEÇÃO RADIOLÓGICAPaciente
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PROTETOR DE ÓRGÃOS GENITAIS
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CONJUNTO SAIA E BLUSA
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AVENTAL TIPO CASACO
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AVENTAL PADRÃO
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PROTEÇÃO RADIOLÓGICAProfissional
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AVENTAL CIRÚRGICO
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PROTEÇÃO RADIOLÓGICAPaciente
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PROTEÇÃO RADIOLÓGICAPaciente
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AVENTAL PANORÂMICO
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BIOMBO ODONTOLÓGICO
Em chumbo laminado. Equivalência em chumbo de 1,00mmPb. Suporte em alumínio regulável e com rodízios para fácil locomoção. Indicado para consultórios odontológicos que utilizam raios-X periapical.
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BIOMBO ODONTOLÓGICO
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PROTEÇÃO RADIOLÓGICALocal de trabalho PortasPortas
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VIDRO PLUMBÍFERO
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BIOMBO CURVO
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BLINDAGEM
BIOMBO RETO
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PROTEÇÃO RADIOLÓGICA
Local de TrabalhoLocal de Trabalho
Salas de Comando
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PROTEÇÃO RADIOLÓGICA
Visor Plumbífero
Local de TrabalhoLocal de Trabalho
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PROTEÇÃO RADIOLÓGICALocal de trabalhoBiomboBiombo
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PROTEÇÃO RADIOLÓGICALocal de TrabalhoLocal de Trabalho
Argamassa Blindante
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Lei do Inverso do Quadrado da Distância:Lei do Inverso do Quadrado da Distância:
A intensidade de radiação emitida pela fonte de Raios-X ou Gama , diminui à medida que nos
afastamos da mesma, e consequentemente a exposição radiológica e a dose de radiação
diminui na mesma proporção. Esse fenômeno é explicado pela Lei do Inverso do Quadrado
da Distância , assim , pequenos afastamentos de uma fonte de radiação , pode causar
granderedução na intensidade da radiação.
PROTEÇÃO RADIOLÓGICA
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PROTEÇÃO RADIOLÓGICALei do Inverso do Quadrado da Distância
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PROTEÇÃO RADIOLÓGICADistância
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DOSIMETRO
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TCC 2007-CENTRO EDUCACIONAL ETIP
• Os dosimetros são feitos de dois tipos, um de Fluoreto de Lítio (LiF) e outro de Sulfato de Cálcio (CaSO4) e são confeccionados pelos materiais apresentados
Composição dos Dosímetros
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Os Dosímetros.
a) Azul - para os meses pares
b) Verde - para os meses impares
c) Vermelho - para envios em caso de extravios
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PROTEÇÃO RADIOLÓGICASensibilidade da célula
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PROTEÇÃO RADIOLÓGICA
Estrutura da Célula
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DOSES LIMITES
TRABALHADORES: 50 mSv/ano
PÚBLICO: 1 mSv/ano
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RELAÇÕES DE UNIDADE
Dose rad gray Gy 1 rad = 1cGy
Dose equivalente
rem sievert Sv 1 rem = 0,01 Sv
Radioatividade Ci bequerel Bq 1 Ci = 3,7 x 1010 Bq
Antiga Nova Símbolo Relação
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A radiação não pode ser percebida pelos órgãos de nossos sentidos. O que percebemos são seus efeitos, que podem se manifestar no futuro, se as medidas de proteção radiológicas não forem adequadamente adotadas no presente.
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OBRIGADO PELA ATENÇÃO
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Como profissionais responsáveis por suas ações, os técnicos em radiologia têm grande responsabilidade em proteger os pacientes, a si próprios e os companheiros de trabalho da radiação excessiva.
Portanto os princípios básicos e os aspectos aplicados de proteção contra a radiação devem ser uma parte essencial do curso técnico em radiologia , porque é de responsabilidade de todo técnico sempre assegurar que a dose de radiação tanto para o paciente como para o técnico seja mantida o mais baixo possível através de procedimentos corretos e principalmente da utilização de protetores radiológicos .
ATENÇÃO