Radiodensity of enamel and dentin of human, bovine and swine teeth

Fonseca, Rodrigo Borges; Haiter-Neto, Francisco; Fernandes-Neto, Alfredo Júlio; Barbosa, Gustavo Augusto Seabra; Soares, Carlos José

doi:10.1016/j.archoralbio.2004.05.006

Cited by 61 publications

(60 citation statements)

References 15 publications

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“…Their prism arrangement differs [7,8], especially in the inner third of the enamel [9], and crystallites are larger [10] but prism diameters smaller [9] in BE. Similar radio-densities were reported [11], and a subsequent study [12] showed not only a greater presence of interprismatic substance but also "fibril-like" structures around prisms in BE. Greater porosity, solubility and presence of interprismatic enamel would suggest that lesions progress faster in BE than HE, which, in deed, has been reported by many researchers [2,[13][14][15][16][17], although relative differences varied considerably between laboratories, highlighting that biological variation within tissues should not be overlooked and especially in larger studies [2].…”

Section: Introductionsupporting

confidence: 79%

Fluoride dose-response of human and bovine enamel artificial caries lesions under pH-cycling conditions

Lippert

Juthani

2015

Clin Oral Invest

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Objectives This laboratory study aimed to: a) compare the fluoride dose-response of different caries lesions created in human and bovine enamel (HE/BE) under pH-cycling conditions, and b) investigate the suitability of Knoop and Vickers surface microhardness (K-SMH/V-SMH) in comparison to transverse microradiography (TMR) to investigate lesion de-and remineralization.Materials and Methods Caries lesions were formed using three different protocols (Carbopol, hydroxyethylcellulose-HEC, methylcellulose-MeC) and assigned to 24 groups using V-SMH, based on a 2 (enamel types)×3 (lesion types)×4 (fluoride concentrations used during pH-cycling-simulating 0/250/1100/2800 ppm F as sodium fluoride dentifrices) factorial design. Changes in mineral content and structural integrity of lesions were determined before and after pH-cycling. Data were analyzed using three-way ANOVA.Results BE was more prone to demineralization than HE. Both enamel types showed similar responses to fluoride with BE showing more remineralization (as change in integrated mineral loss and lesion depth reduction), although differences between tissues were already present at lesion baseline. Carbopol and MeC lesions responded well to fluoride, whereas HEC lesions were almost inert. K-and V-SMH correlated well with each other and with the integrated mineral loss data, although better correlations were found for HE than for BE, and for MeC than for Carbopol lesions. Hardness data for HEC lesions correlated only with surface zone mineral density data.Conclusion BE is a suitable surrogate for HE under pH-cycling conditions. Clinical Relevance The in vitro modelling of dental caries is complex and requires knowledge of lesion behavior, analytical techniques and employed hard tissues.

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Section: Introductionsupporting

confidence: 79%

Fluoride dose-response of human and bovine enamel artificial caries lesions under pH-cycling conditions

Lippert

Juthani

2015

Clin Oral Invest

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“…Therefore, 68 papers were included in the final review. The studies covered seven main categories: morphology (5 studies) (22)(23)(24)(25)(26), chemical composition (11 studies) (27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37), physical properties (12 studies) (38)(39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49), dental caries (7 studies) (6,9,(50)(51)(52)(53)(54), dental erosion/abrasion (10 studies) (55)(56)(57)(58)(59)(60)(61)(62)(63)(64), bonding/adhesive strength (17 studies) (65)(66)(67)(68)…”

Section: Search Resultsmentioning

confidence: 99%

“…Fonseca et al (48) showed no significant difference in radiodensity between human and bovine enamel or dentin. Fonseca et al (49) compared the radiodensity and hardness of human and bovine enamel and dentin of varying age.…”

Section: Enamelmentioning

confidence: 99%

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Bovine teeth as substitute for human teeth in dental research: a review of literature

2011

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The aim of this paper was to review in vitro and in situ studies that directly compared the use of bovine teeth as a substitute for human teeth in dental experiments. A PubMed search was conducted for papers published from 1953 to December 30, 2010 using the following keywords: "human bovine enamel" or "human bovine dentin" or "human bovine teeth". The abstracts of the studies resulting from the keyword search were read, and all papers that compared human and bovine teeth were fully read. Only original articles written in English and directly comparing human and bovine substrates were included in the review. The search was supplemented by manual searches of the reference lists from each identified paper. Out of 76 studies initially selected, 68 fulfilled the selection criteria for inclusion. The studies covered seven categories: dental morphology, chemical composition, physical properties, dental caries, dental erosion/abrasion, bonding/adhesive strength, and marginal microleakage. Inconsistent data exist regarding whether bovine teeth can be considered an appropriate substitute for human teeth in dental research. Morphological, chemical composition and physical property differences between the two substrates must be considered when interpreting results obtained from any experiment using bovine tooth substrate. (J Oral Sci 53, 273-282, 2011)

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“…Como dentes humanos muitas vezes não estão disponíveis em número suficiente para propósito de pesquisas, dentes bovinos têm sido usados como substitutos para testes in vitro em diversas pesquisas na área odontológica [2][3][4][5] . Os dentes humanos são morfológica e histologicamente semelhantes aos dentes de outros mamíferos, todavia o tamanho e disponibilidade fazem dos incisivos bovinos uma preferência para pesquisas.…”

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O Uso de Dentes Bovinos como Substitutos de Dentes Humanos em Pesquisas Odontológicas: Uma Revisão da Literatura

Campos¹,

Campos²,

Vitral³

2008

Pesq Bras Odontoped Clin Integr

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RESUMO DESCRIPTORS DESCRITORESEstudos experimentais; Pesquisa em odontologia; Experimentação animal.Epidemiology, experimental; Dental research; Animal experimentation. Introdução:Os tratamentos reabilitadores modernos das últimas décadas fazem com que a obtenção de dentes humanos torne-se extremamente difícil apesar do aumento na demanda. Devido a esta grande dificuldade de se obter dentes extraídos humanos, tanto para pesquisas odontológicas quanto para estudos de alunos de graduação, faz com que seja necessário se obter um substituto com as mesmas características físicas. Como os dentes de mamíferos são parecidos, pesquisadores têm utilizado dentes oriundos de bovinos, ovinos, eqüinos ou suínos para conseguir quantidade de material suficiente e padronizado para seus estudos. Os dentes humanos são morfológica e histologicamente semelhantes aos dentes de outros mamíferos, entretanto o tamanho e a disponibilidade fazem dos incisivos bovinos uma preferência para as pesquisas odontológicas. Objetivo: Investigar os estudos já realizados nas diversas especialidades odontológicas onde, diante da real e atual dificuldade na obtenção de dentes humanos para pesquisa, estes foram substituídos por dentes bovinos. Conclusão: Os incisivos mandibulares permanentes de bovinos apresentam similaridades anatômica e histológica, mostrando-se como excelentes substitutos para os dentes humanos na pesquisa odontológica.

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Radiodensity of enamel and dentin of human, bovine and swine teeth

Cited by 61 publications

References 15 publications

Fluoride dose-response of human and bovine enamel artificial caries lesions under pH-cycling conditions

Fluoride dose-response of human and bovine enamel artificial caries lesions under pH-cycling conditions

Bovine teeth as substitute for human teeth in dental research: a review of literature

O Uso de Dentes Bovinos como Substitutos de Dentes Humanos em Pesquisas Odontológicas: Uma Revisão da Literatura

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