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Um dos objetivos do tratamento endodôntico consiste na desinfeção do sistema de canais
radiculares de forma a que estes se encontrem livres de microrganismos no momento da
obturação. O material de obturação mais utilizado é a Gutta-Percha (GP), que não pode ser
submetida à esterilização por métodos térmicos sendo que podem ser alteradas as suas
propriedades físico químicas. Tanto o canal radicular como a superfície dos cones de GP
podem conter bactérias que podem influenciar o sucesso do tratamento endodôntico.
Sendo assim os clínicos podem recorrer à pratica chairside para conseguir obter cones sem
nenhuma forma de contaminação. O objetivo deste trabalho consistiu em avaliar possíveis
meios de desinfeção. Foram efetuadas pesquisas nas bases de dados: Pubmed Web of
Science e Cochrane em que foram selecionados 38 artigos em concordância aos critérios
de inclusão e exclusão. Ainda foi realizado um ensaio do grau de contaminação dos cones
de GP da Universidade Católica Portuguesa. Foram incubados 50 GP no meio de
crescimento Nutrient Broth. O resultado foram 14 tubos com Turbidez, ou seja
contaminação. De acordo com o estudo experimental executado concluiu-se que a
desinfeção chairside è um processo aconselhado e que pode dar auxilio ao profissional
sendo um método rápido e de baixo custo. Os resultados dos estudos encontrados
revelaram que ainda não existe uma solução ideal mas o Hipoclorito de sódio (NaOCl) e a
Clorexidina (CHX) conseguem ser soluções suficientemente seguras nessa pratica.
The aim of endodontic treatment is to disinfect the root canal system in order to be free of microorganisms at the time of filling procedure. The most commonly used filling material is Gutta Percha (GP), which cannot be sterilized by thermal methods due to its physicochemical properties that can be altered. Root canal and the surface of GP cones may contain bacteria that can influence the success of endodontic treatment. Therefore, professionals can resort to Chairside practice to obtain cones without any form of contamination. The aim of this work was to evaluate the possible means of disinfection. The databases used were: Pubmed, Web of Science and Cochrane, in which 38 articles were selected according to the inclusion and exclusion criteria. A test of the degree’s contamination of GP cones was also conducted at the Universidade Católica Portuguesa. 50 GP cones were incubated in Nutrient Broth culture medium. The result highlighted 14 tubes with turbidity, which proved the presence of a contamination. According to the experimental study conducted, it was concluded that Chairside disinfection is a recommended process which can be aid for the professional, being a quick and economical method. The results of the found studies revealed that: an ideal solution does not yet exist, but Sodium Hypochlorite (NaOCl) and Chlorhexidine (CHX) can be sufficiently safe solutions in this practice.
The aim of endodontic treatment is to disinfect the root canal system in order to be free of microorganisms at the time of filling procedure. The most commonly used filling material is Gutta Percha (GP), which cannot be sterilized by thermal methods due to its physicochemical properties that can be altered. Root canal and the surface of GP cones may contain bacteria that can influence the success of endodontic treatment. Therefore, professionals can resort to Chairside practice to obtain cones without any form of contamination. The aim of this work was to evaluate the possible means of disinfection. The databases used were: Pubmed, Web of Science and Cochrane, in which 38 articles were selected according to the inclusion and exclusion criteria. A test of the degree’s contamination of GP cones was also conducted at the Universidade Católica Portuguesa. 50 GP cones were incubated in Nutrient Broth culture medium. The result highlighted 14 tubes with turbidity, which proved the presence of a contamination. According to the experimental study conducted, it was concluded that Chairside disinfection is a recommended process which can be aid for the professional, being a quick and economical method. The results of the found studies revealed that: an ideal solution does not yet exist, but Sodium Hypochlorite (NaOCl) and Chlorhexidine (CHX) can be sufficiently safe solutions in this practice.
Descrição
Palavras-chave
Gutta-percha Desinfeção Esterilização Descontaminação Disinfection Esterilization Decontamination