Citotoxicidade, citoproteção e análise morfológica do MTA, MTA Repair HP e Biodentine

Autores

DOI:

https://doi.org/10.33448/rsd-v11i3.26639

Palavras-chave:

Técnicas de cultura celular; Microscopia; Técnicas in vitro.

Resumo

O objetivo do presente estudo foi avaliar a citotoxicidade in vitro, citoproteção e alterações morfológicas pela técnica de MEV do MTA, MTA-HP e Biodentine, na linhagem celular de fibroblastos 3T3. MTA, MTA-HP e Biodentine foram dispostos em discos estéreis de teflon e incubados em meio de cultura por 24 horas para obtenção dos eluatos. Células de fibroblastos 3T3 foram cultivadas com os respectivos eluatos e o grupo controle com meio de cultura. Os ensaios de citotoxicidade e citoproteção foram determinados pelo método MTT. Os resultados foram processados ​​estatisticamente pela análise de Mann-Whitney (α=0,05) e Kruskal-Wallis. As células cultivadas em lamínulas e tratadas com os eluatos foram submetidas ao processo de fixação e desidratação para avaliação das alterações morfológicas pela técnica de MEV. No ensaio de citotoxicidade, as células tratadas com MTA, MTA HP e Biodentine apresentaram viabilidade acima de 95%, assim como as células controle. Na citoproteção das células 3T3, os materiais promoveram na mesma magnitude (p>0,05), com melhor crescimento celular e foram considerados estatisticamente diferentes do obtido para células tratadas apenas com solução de peróxido (controle positivo) (p=0,046). Além disso, os resultados de viabilidade dos materiais endodônticos testados foram próximos aos do controle negativo (células tratadas apenas com meio de cultura) (p=0,05). Nenhuma alteração morfológica das células 3T3 em contato com os materiais endodônticos foi revelada pela técnica de MEV. Os materiais biocerâmicos demonstraram alta bioatividade e biocompatibilidade, conforme apresentado em ensaios de citoproteção e morfológicos.

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08/03/2022

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MICHELOTTO, A. L. da C.; PUPO, Y. M.; OSHIRO, S. T. K.; YAMAMOTO, Ângela T. A. .; OLIVEIRA, C. C. de; BATISTA, A.; MALUF, D. F. Citotoxicidade, citoproteção e análise morfológica do MTA, MTA Repair HP e Biodentine. Research, Society and Development, [S. l.], v. 11, n. 3, p. e58211326639, 2022. DOI: 10.33448/rsd-v11i3.26639. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/26639. Acesso em: 30 jun. 2024.

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