Analysis and discussion of trace elements in teeth of different animal species

Falla-Sotelo, F.; Rizzutto, M. A.; Tabacniks, M.H.; Added, N.; Barbosa, M. D. L.; Markarian, Roberto Adrian; Quinelato, A. L.; Mori, M.; Youssef, Michel Nicolau

doi:10.1590/s0103-97332005000500010

Cited by 30 publications

(32 citation statements)

References 13 publications

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“…The present study used bovine enamel as a substitute for human enamel; the two types of enamel show similar chemical composition and physical features [Falla-Sotelo et al, 2005]. Bovine enamel is easier to obtain than human enamel and it presents a larger surface area with more uniform enamel thickness [Lippert and Lynch, 2014].…”

Section: Discussionmentioning

confidence: 99%

Synergistic Inhibition of Enamel Demineralization by Peptide 8DSS and Fluoride

Yang

Shi

et al. 2016

Caries Res

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The biomimetic peptide 8DSS has shown beneficial effects in promoting remineralization of demineralized enamel in vitro. Here we examined the ability of 8DSS alone and in combination with fluoride to inhibit enamel demineralization during pH-cycling mimicking intraoral conditions. Enamel blocks were subjected to 9 days of pH-cycling in the presence of 1,000 ppm NaF (positive control), distilled-deionized water (DDW; negative control), 25 μM 8DSS alone, 25 μM 8DSS with 500 ppm NaF (8DSS-FL) or 25 μM 8DSS with 1,000 ppm NaF (8DSS-FH) twice daily for 1 min each time. The blocks were analyzed in terms of surface microhardness (SMH), fluoride uptake and mineral content. The 8DSS-treated blocks showed significantly lower mineral loss, shallower lesions and higher SMH than the DDW-treated blocks. No significant differences were observed between the blocks treated with 8DSS alone or fluoride alone. The blocks treated with 8DSS alone or DDW showed similar amounts of fluoride uptake, which was the lowest of all the treatment groups. The blocks treated with 8DSS-FL or 8DSS-FH did not differ significantly, and both groups showed significantly greater SMH and fluoride uptake as well as significantly lower mineral loss and shallower lesions than the NaF-treated blocks. Mineral content was significantly higher in the 8DSS-treated blocks than in the DDW-treated blocks from the surface layer (10 µm) to the lesion depth (110 µm), and it was significantly higher in the blocks treated with 8DSS-FL or 8DSS-FH than in the NaF-treated blocks from 10 to 90 µm. These findings illustrate the potential of 8DSS for inhibiting enamel demineralization and for enhancing the anticaries effect of NaF.

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Section: Discussionmentioning

confidence: 99%

Synergistic Inhibition of Enamel Demineralization by Peptide 8DSS and Fluoride

Yang

Shi

et al. 2016

Caries Res

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“…Other studies have analyzed nonhuman teeth to assess lead exposure and demonstrated that the animal species teeth are well suited as a bio-indicator for assessing lead contamination of the environment [20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Teeth as Indicators of Environmental Pollution with Lead

Kamberi¹,

Koçani²,

Dragusha³

2012

J Environment Analytic Toxicol

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“…Neste contexto, Falla-Sotelo et al (2005) e Oliveira et al (2010 apontam achados próximos entre a concentração de Ca e P presentes em bovinos, suínos e dentes humanos, o que confere essa caracterização nestes mamíferos. As características físico-químicas e estruturais, bem como seu padrão de mineralização, figuram como características primárias para comparação entre animais.…”

Section: Discussionunclassified

“…O esmalte dental é composto por cristais de hidroxiapatita Ca 10 (PO 4 ) 6 (OH) 2 com oligoelementos incorporados que podem fornecer informações sobre o ambiente e hábitos dietéticos do animal, sendo o mesmo um bioindicador de grande interesse, pois contém informações sobre os elementos depositados neste tecido (Calonius et al 1965, Naujoks, 1967, Falla-Sotelo et al 2005.…”

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Avaliação comparativa da ultraestrutura e propriedades físicas do esmalte bovino, bubalino e humano

et al. 2014

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Pesq. Vet. Bras. 34(5): 485-490, maio 2014 485 RESUMO.-Este estudo teve como finalidade comparar a morfologia e propriedades físicas da estrutura do esmalte dos dentes bovinos, bubalinos e humanos. A análise deste tecido foi realizada por meio de microscopia eletrônica de varredura, composição mineral, microdureza e rugosidade superficial do esmalte em 41 incisivos bubalinos (Bos taurus indicus), 41 incisivos bovinos (Pelorovis antiques) e 30 incisivos permanentes de humanos. Os resultados mostraram que a ultraestrutura do esmalte revela uma significativa similaridade das espécies estudadas com a encontrada em amostras humanas. No esmalte bovino e bubalino os elementos químicos que apresentaram maior concentração foram: O, Ca e P, justamente os que formam os cristais de hidroxiapatita -Ca 10 (PO 4 ) 6 (OH) 2 . Na microdureza Knoop não houve diferença estatisticamente significante entre as três espécies. Porém, a rugosidade superficial do esmalte bubalino (2,16µm ±0,23) foi significativamente maior quando comparada aos dentes humano (0,36µm ±0,05) e bovino (0,41µm ±0,07). Conclui-se que as características e propriedades do esmalte bovino e bubalino, por meio de análises e testes, apresentou uma morfologia semelhante à de humanos, arquitetura ultraestrutural similar, microdureza e composição mineral equivalente ao tecido dental humano, tornando-se modelos de referência para pesquisas.TERMOS DE INDEXAÇÃO: Esmalte dentário, búfalo, bovino, humano. This study aimed to compare the morphology and physical properties of the enamel structure of bovine, buffalo and human teeth. Analysis of this tissue was performed by scanning electron microscopy, mineral composition, microhardness and surface roughness of enamel in 41 buffalo incisors (Bos taurus indicus), 41 bovine incisors (Pelorovis antiques), and 30 human permanent incisors. The results showed a significant similarity between the ultrastructure of enamel in these animal species and the one found in human samples. The chemical elements which presented higher concentration in bovine and buffalo enamel were: O, Ca and P, precisely those that form hydroxyapatite crystals -Ca 10 (PO 4 ) 6 (OH) 2 . Knoop microhardness values showed no statistically significant differences between the three species. However, the surface roughness of buffalo enamel (2.16µm ±0.23) was significantly higher when compared with human (0.36µm ±0.05) and bovine teeth (0.41µm ±0.07). It is concluded that the characteristics and properties of bovine and buffalo enamel, as obtained from our analysis and testing, showed a similar morphology to that of humans. They showed a similar ultrastructural architecture, microhardness and mineral composition equivalent to the human dental tissue, becoming reference models for research. INTRODUÇÃOINDEX TERMS: Tooth enamel, buffalo, bovine, human.

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Analysis and discussion of trace elements in teeth of different animal species

Cited by 30 publications

References 13 publications

Synergistic Inhibition of Enamel Demineralization by Peptide 8DSS and Fluoride

Synergistic Inhibition of Enamel Demineralization by Peptide 8DSS and Fluoride

Teeth as Indicators of Environmental Pollution with Lead

Avaliação comparativa da ultraestrutura e propriedades físicas do esmalte bovino, bubalino e humano

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