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Evaluation of some biological aspects of the presence of abrasive silica and thickening silica in basic formulations of dentifrices / Evaluación de algunos aspectos biológicos de la presencia de sílice abrasivo y sílice espesante en formulaciones básicas de dentífricos
Pedrazzi, Vinícius; Ciampo, José Orestes Del; do Nascimento, Cássio; Issa, João Paulo Mardegan.
  • Pedrazzi, Vinícius; University of São Paulo. Faculty of Dentistry. Ribeirão Preto. BR
  • Ciampo, José Orestes Del; University of São Paulo. Faculty of Dentistry. Ribeirão Preto. BR
  • do Nascimento, Cássio; University of São Paulo. Faculty of Dentistry. Ribeirão Preto. BR
  • Issa, João Paulo Mardegan; University of São Paulo. Faculty of Dentistry. Ribeirão Preto. BR
Int. j. morphol ; 27(1): 159-168, Mar. 2009. ilus, tab
Article in English | LILACS | ID: lil-553002
ABSTRACT
The aim of this study was to evaluate some biological characteristics and toxicity of basic formulations of dentifrices containing such substances, and to compare them with two existing products in market which also contains silic in their formulations. In this way, it was evaluated some biological parameters weight of the animals, oral toxicity, hematological parameters, urinary analysis, and histological evaluation. The thrombocytes were also statistically at normal levels. The glutamate-pyruvate transaminase (TGP) showed normal aspect in 5 of the tested groups, as in control. Meanwhile, the oxalacetic transaminase (AST) in one group had a small increase in the control group. Regarding urine, in exception the rats of one group, the rats of the 4 other experimental groups showed leukocytosis urinary statistically higher than the control group. The histological evaluation of the animals showed that specimens from liver, stomach, kidney and submandibular gland presented normal aspects for these organs, without significant characteristics related to inflammatory infiltrates in any of the 6 samples tested in their respective groups.
RESUMEN
El objetivo del estudio fue evaluar algunas características biológicas y de toxicidad provenientes de las formulaciones básicas de dentífricos que contienen sílice en su composición y compararlos con dos dentífricos disponibles comercialmente que también presentan sílice. El análisis hematológico no mostró diferencias entre los grupos evaluados. Los niveles de trombocitos presentados por los grupos fueron también normales. La transaminasa gluámico pirúbica se mostró un aspecto normal en 5 de los grupos estudiados, así como en el grupo control. La transaminasa glutámico oxaloacética en uno de los grupos tuvo un pequeño incremento. En relación a la orina, 4 grupos presentaron leucocitosis urinaria significativamente mayor que el grupo de control. La evaluación histológica del hígado, estómago, riñones y glándulas submandibulares se presentó con aspecto normal, sin presencia de infiltrado inflamatorio.
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Full text: Available Index: LILACS (Americas) Main subject: Silicon Dioxide Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Silicon Dioxide Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo/BR