Evaluación inflamatoria e inmunohistoquímica de materiales de reparación biocerámica después de pulpotomía: un estudio en ratas wistar

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i10.18480

Palabras clave:

Pulpotomía; Inflamación; Ensayo de Materiales; Endodoncia.

Resumen

La pulpotomía es una opción de tratamiento conservador cuya función es preservar la vitalidad pulpar en la porción radicular, con el uso de materiales biocompatibles en este tejido remanente. Este estudio tuvo como objetivo evaluar la respuesta biológica del remanente pulpar a los cementos biocerámicos restauradores Biodentine® y MTA Branco Angelus® en comparación con el hidróxido de calcio después de la pulpotomía. Se utilizaron veinticuatro ratas macho a las que se les expusieron las pulpas coronarias del primer y segundo molares y se les extrajo con una cureta afilada. El tejido pulpar restante recibió uno de los materiales experimentales: Biodentine®, MTA Angelus® o Ca (OH) 2 + agua destilada y se selló con ionómero de vidrio. Un grupo se selló directamente con ionómero de vidrio como grupo de control negativo. A los 7 y 15 días, los animales fueron sacrificados y las piezas sometidas a procesamiento histológico para evaluar el proceso inflamatorio colocándolas en HE e inmunohistoquímica (Fibronectina y Tenascina), mediante la atribución de puntajes de 1 a 4. Formación de puentes de tejido duro Se observó en tinción HE, evaluando presencia, continuidad y morfología. Los datos se sometieron a la prueba de Kruskal Wallis y Dunn (p <0,05). El análisis estadístico mostró que a los 7 días el MTA y el Ca (OH) 2 tenían una mayor continuidad del puente de tejido duro que el ionómero de vidrio (p <0,05). Biodentine® mostró mejores aspectos morfológicos en comparación con el ionómero de vidrio (p <0.05). A los 15 días, MTA y Biodentine mostraron un puente de tejido duro completo (p <0,05). Para la inmunotinción, Biodentine® obtuvo un mayor marcado que el ionómero de vidrio para fibronectina y tenascina. Biodentine®, MTA Angelus Branco e hidróxido de calcio mostraron la capacidad de inducir la mineralización según la metodología aplicada. Sin embargo, Biodentine® mostró una mejor respuesta tisular que el ionómero de vidrio y el hidróxido de calcio.

Citas

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Publicado

15/08/2021

Cómo citar

VALENTIM, D. .; BUENO, C. R. E.; VASQUES, A. M. V.; BENETTI, F.; CURY, M. T. S. .; SILVA , A. C. R. da .; JACINTO, R. . C.; SIVIERI ARAÚJO, G. .; GOMES-FILHO, J. E. .; ERVOLINO, E. .; CINTRA, L. T. A. .; DEZAN-JUNIOR, E. . Evaluación inflamatoria e inmunohistoquímica de materiales de reparación biocerámica después de pulpotomía: un estudio en ratas wistar. Research, Society and Development, [S. l.], v. 10, n. 10, p. e424101018480, 2021. DOI: 10.33448/rsd-v10i10.18480. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/18480. Acesso em: 4 jul. 2024.

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Ciencias de la salud