Human pulp pesponse to Portland cement and MTA

Abstract

OBJECTIVE: To investigate the pulpal response to direct pulp capping in healthy human teeth with Portland cement (PC) as against mineral trioxide aggregate (MTA) as control.METHODS: Forty healthy human third molars indicated for extraction were randomly divided into two groups: PC and MTA. The teeth had iatrogenic pulp exposed and direct pulp capping with PC or MTA. After 1, 7, 14 and 21 days, the teeth were extracted and prepared for histological examination and bacterial detection. The Mann-Whitney test was applied for statistical analysis (p < 0.05).RESULTS: The MTA presented higher capacity to form of dentin bridges at 14- and 21-day intervals (p < 0.05). However, no significant statistical difference was found between the groups at all evaluated intervals (p > 0.05) for the response variables of inflammatory cells, soft tissue organization and bacterial staining.CONCLUSION: The PC has a biocompatibility equivalent to the MTA but with a lower capacity to form of dentin bridges. Therefore, MTA should be the material of choice for direct pulp capping.

Histopathological evaluation of pulp response to portland cement compared to MTA after primary canines pulpotomy (in vivo study)

“…Both Portland cement and MTA initially cause superficial death upon contact with the connective tissue of the pulp due to the high alkalinity of these materials, with a pH of approximately 9-10, and this was observed in all studied samples and this is and this is consistent with Camilleri et al [ 25 ] and Barbosa et al [ 26 ].…”

“…As for the soft tissue organism, likewise, there were no statistically significant differences between the two groups. Where the pulp tissue cells were normal and did not show any signs of pulp necrosis this finding goes by Barbosa et al [ 26 ] and Sayed et al [ 19 ]. While the results of this study did not agree with the study of Negm et al study and this could be attributed to its addition of bismuth oxide to the composition of Portland cement [ 27 ].…”

Aplicabilidade, biocompatibilidade e eficácia do Agregado de Trióxido Mineral na Endodontia

“…Estudos realizados por meio de uma revisão sistemática da literatura reuniu nove estudos clínicos randomizados com objetivo de avaliar o efeito do tipo de material utilizado em obturações retrógradas e o índice de sucesso na terapia de retratamento endodôntico. O estudo constatou que as evidências científicas atuais demonstraram não haver grau de diferença significativa da eficácia do uso dos materiais quando utilizados na prática clínica, trazendo como conclusão a necessidade de possui menor capacidade de forma pontes de dentina (Barbosa et al, 2018).…”