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Abstract(s)
Perfurações de furca podem ser definidas como comunicações entre a cavidade pulpar e o periodonto na região interradicular de dentes multirradiculares. São condições patológicas de tratamento complexo. O tratamento consiste em utilizar um material biocompatível para selar a cavidade e impedir a invasão de microrganismos. Atualmente, as biocerâmicas são uma boa opção para reparar perfurações de furca, sendo o ProRoot®MTA o material de eleição, não sendo desprovido de inconvenientes. Nesse sentido, têm surgido novos materiais tal como o Biodentine que permitem a recuperação da estrutura afetada e manutenção dos dentes.
Os principais objetivos deste estudo são, numa primeira fase, a validação de um novo modelo de microinfiltração bacteriana em perfurações de furca baseado no modelo de Torabinejad M., Friedman S. et al. e, numa segunda fase, a comparação da eficácia de resistência à microinfiltração bacteriana de Enterococcus faecalis após a reparação de perfurações de furca com Biodentine e ProRoot®MTA.
Foram selecionados e preparados 32 dentes hígidos que se dividiram aleatoriamente em 2 grupos teste: [Biodentine (reparação com Biodentine=12 dentes) e prMTA (reparação com ProRoot®MTA=12 dentes)] e em dois gupos controlo: [Controlo Pos (Com perfuração sem reparação= 4 dentes) e Controlo Neg (sem perfuração= 4 dentes)].
O número de dias necessários para esta bactéria penetrar o material reparador foi determinado.
Após avaliação dos resultados podemos validar o novo modelo de microinfiltração bacteriana em perfurações de furca.
Mais de 80 % das amostras foram contaminadas após 4 dias de exposição com Enterococcus faecalis tanto no grupo Biodentine como no grupo prMTA. No entanto Biodentine apresentou melhores resultados demorando mais tempo a ficarem todas as amostras contaminadas, no entanto sem diferença estatisticamente significativa.
Concluímos que para o parâmetro de microinfiltração bacteriana, Biodentine pode ser uma alternativa válida ao ProRoot®MTA para reparações de perfurações de furca.
Furcal perforations can be defined as communications between the pulp cavity and the periodontus in the interradicular region of multirradicular teeth. The treatment of these pathological conditions is complex. consisting on the use of a biocompatible material to seal the cavity and prevent the invasion by microorganisms. Currently, bioceramics are a good option for repairing furcal perforations, with ProRoot®MTA being the material of choice. However, it is, not devoid of inconveniences. Therefore, new materials have emerged, such as Biodentine that allow the recovery of the affected structure preserving the teeth. The main objectives of this study are, firstly, the validation of a new model of bacterial microleakage in furcal perforations based on the model of Torabinejad M., Friedman S. et al. and, secondly, the comparation of the efficacy of resistance to bacterial microleakage of Enterococcus faecalis after repair of furcal perforation with Biodentine or ProRoot®MTA. Thirty-two healthy teeth were selected and prepared and were randomly divided into two test groups: [Biodentine (repair with Biodentine= 12 teeth), and PrMTA (repair with ProRoot®MTA= 12 teeth)] and two control groups: [Controlo Pos. (with perforation and without repair= 4 teeth) and Controlo Neg (without perforation= 4 teeth)]. The number of days for bacterial penetration though the material was determined. After evaluation of results, the new bacterial microleakage model in furcal perforations was validated. More than 80% of the samples were contaminated after 4 days of exposure with Enterococcus faecalis both in group Biodentine and group prMTA. However Biodentine showed a trend for better results taking with longer times to contamination, although without statistical significance. In conclusion, Biodentine may be a valid alternative to ProRoot®MTA for furcal perforations repair regarding microleakage.
Furcal perforations can be defined as communications between the pulp cavity and the periodontus in the interradicular region of multirradicular teeth. The treatment of these pathological conditions is complex. consisting on the use of a biocompatible material to seal the cavity and prevent the invasion by microorganisms. Currently, bioceramics are a good option for repairing furcal perforations, with ProRoot®MTA being the material of choice. However, it is, not devoid of inconveniences. Therefore, new materials have emerged, such as Biodentine that allow the recovery of the affected structure preserving the teeth. The main objectives of this study are, firstly, the validation of a new model of bacterial microleakage in furcal perforations based on the model of Torabinejad M., Friedman S. et al. and, secondly, the comparation of the efficacy of resistance to bacterial microleakage of Enterococcus faecalis after repair of furcal perforation with Biodentine or ProRoot®MTA. Thirty-two healthy teeth were selected and prepared and were randomly divided into two test groups: [Biodentine (repair with Biodentine= 12 teeth), and PrMTA (repair with ProRoot®MTA= 12 teeth)] and two control groups: [Controlo Pos. (with perforation and without repair= 4 teeth) and Controlo Neg (without perforation= 4 teeth)]. The number of days for bacterial penetration though the material was determined. After evaluation of results, the new bacterial microleakage model in furcal perforations was validated. More than 80% of the samples were contaminated after 4 days of exposure with Enterococcus faecalis both in group Biodentine and group prMTA. However Biodentine showed a trend for better results taking with longer times to contamination, although without statistical significance. In conclusion, Biodentine may be a valid alternative to ProRoot®MTA for furcal perforations repair regarding microleakage.
Description
Keywords
Biodentine ProRoot®MTA Microinfiltração bacteriana Enterococcus faecalis Bacterial microleakage