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A comparative study of the biocompatibility of two root-end filling materials in rat connective tissue / Estudio comparativo de la biocompatibilidad de dos materiales de retro-obturación en tejido conectivo de rata
Gutiérrez-Cantú, Francisco Javier; Magaña-Zamora, Guadalupe; Oliva-Rodríguez, Ricardo; García-Cortes, José Obed; Sánchez-Meraz, Wulfrano; Mariel-Cárdenas, Jairo.
  • Gutiérrez-Cantú, Francisco Javier; University of San Luis Potosí. Faculty of Dentistry. Department of Morphology. San Luis Potosí. MX
  • Magaña-Zamora, Guadalupe; University of San Luis Potosí. Faculty of Dentistry. Masters of Endodontics. San Luis Potosí. MX
  • Oliva-Rodríguez, Ricardo; University of San Luis Potosí. Faculty of Dentistry. Masters of Endodontics. San Luis Potosí. MX
  • García-Cortes, José Obed; University of San Luis Potosí. Faculty of Dentistry. Department of Morphology. San Luis Potosí. MX
  • Sánchez-Meraz, Wulfrano; University of San Luis Potosí. Faculty of Dentistry. Department of Morphology. San Luis Potosí. MX
  • Mariel-Cárdenas, Jairo; University of San Luis Potosí. Faculty of Dentistry. Department of Morphology. San Luis Potosí. MX
Int. j. morphol ; 37(3): 792-799, Sept. 2019. tab, graf
Article in English | LILACS | ID: biblio-1012355
ABSTRACT
The aim of the present study was to examine the short-term biocompatibility of Endosequence Root Repair Material (ERRM) paste and white Mineral Trioxide Aggregate MTA by implanting them into polyethylene tubes in the subcutaneous connective tissue of rats. twenty five male Wistar rats, 3-4 months old, weighing 300-350 g, were used. The tubes were implanted dorsally into the subcutaneous connective tissues of the rats. Five animals were sacrificed at five examination time points 1, 3, 5, 7 and 15 days. The connective tissues containing the implants were excised. These sections were studied qualitatively and quantitatively using a light microscope. An average value for each group was obtained by averaging the sum of all inflammatory cells counted in 10 randomly selected, separate areas. For the ERRM group There was a significant increase in the number of inflammatory cells on days 1-3 and on days 5-7 (P ≤ 0.003 and P ≤ 0.024). In the WHITE MTA group, the mean values of the sum of the inflammatory cells during the periods 1-3 days and 5-7 days were statistically significant (P ≤ 0.001 and P ≤ 0.044, respectively) and the XILOPERCHA group Difference was observed significant in the value of the sum of inflammatory cells during the period of 3-5 days (P ≤ 0.05). According to the results it can be concluded that both, ERRM as MTA, caused an inflammatory reaction, which decreased over time; suggesting that both materials are biocompatible; showing however the presence of a higher organization of collagen fibers around the implants of ERRM.
RESUMEN
El objetivo del presente estudio fue evaluar la biocompatibilidad a corto plazo de Material de Reparación de la Raíz Endodóntica (MRRE) y el agregado de trióxido mineral (AgTM), implantándolos dentro de tubos de polietileno en el tejido conectivo subcutáneo de ratas. Se usaron 25 ratas Wistar macho, de 3-4 meses de edad, con peso de 300 a 350 g. Los tubos fueron implantados en el tejido conectivo subcutáneo del dorso de las ratas. Cinco animales fueron sacrificados en cada uno de los siguientes períodos de tiempo 1, 3, 5, 7, y 15 días. El tejido conectivo con los implantes fue escindido y seccionado. Los cortes se evaluaron cualitativa y cuantitativamente mediante microscopio óptico. Se obtuvo un valor para cada grupo resultado al promediar la suma de las células inflamatorias contadas en 10 áreas separadas seleccionadas aleatoriamente. Para el grupo de MRRE; hubo un incremento significativo en la cantidad de células inflamatorias entre los días 1-3 y 5-7 (p ≤ 0,003 y p ≤ 0,024). En el grupo de AgTM blanco, los valores promedio de la suma de células inflamatorias entre los períodos 1-3 días, y 5-7 días mostraron ser estadísticamente significativos (p≤ 0,001 y p ≤ 0,044 respectivamente) y en el grupo control de Xilopercha se observó diferencia significativa entre los valores de la suma de células inflamatorias entre los períodos de 3-5 días (P ≤ 0,05). De acuerdo a los resultados, puede concluirse que ambos materiales, AgTM y MRRE causaron una reacción inflamatoria que disminuyó a través del tiempo, sugiriendo que ambos materiales son biocompatibles; mostrando sin embargo una mayor organización de fibras colágenas alrededor de los implantes de MRRE.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Oxides / Calcium Phosphates / Silicates / Calcium Compounds / Aluminum Compounds / Connective Tissue Type of study: Qualitative research Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2019 Type: Article Affiliation country: Mexico Institution/Affiliation country: University of San Luis Potosí/MX

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Full text: Available Index: LILACS (Americas) Main subject: Oxides / Calcium Phosphates / Silicates / Calcium Compounds / Aluminum Compounds / Connective Tissue Type of study: Qualitative research Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2019 Type: Article Affiliation country: Mexico Institution/Affiliation country: University of San Luis Potosí/MX