Transmission Electron Microscopic Characterization of Hypersensitive Human Radicular Dentin

Yoshiyama, Masahiro; Noiri, Yuichiro; Ozaki, Kazumi; Uchida, Akitsugu; Ishikawa, Yasuko; Ishida, Hiroshi

doi:10.1177/00220345900690061401

Cited by 95 publications

(66 citation statements)

References 11 publications

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“…Moreover, the Ca/P ratios in PTD and in ITD compared between the species were statistically insignificant. Similar results were reported in human dentin by Yoshiyama and co-workers [43] and in equine dentin by Kodaka's research group [25].…”

Section: Discussionsupporting

confidence: 90%

“…On the other hand, the great similarity in microstructural and chemical composition of porcine and human dentin points to suitability of porcine dentin use in human dental research. Indeed, no significant difference is found between the bond strength of human and porcine dentin to a number of resin cements [43], and a similar outcome is reported after etching of either of dentin, porcine and human [44].…”

Section: Discussionmentioning

confidence: 57%

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Animal and human dentin microstructure and elemental composition

et al. 2014

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AbstractAnimal teeth are a common model in studies on dentin adhesive materials. The aim of this study was to compare microstructural parameters (density and diameter of dentinal tubules (DT), peritubular dentin (PTD) thickness, PTD and intertubular dentin (ITD) surface area) and chemical characteristics of canine, porcine, equine, and human root dentin. The middle layers of dentin were harvested just below a cemento-enamel junction from incisors and investigated by means of scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDXS). SEM evaluation of the specimens revealed, that porcine dentin shared most similarities with human dentin. When comparing the density of DTs, canine dentin was also found to be similar to human dentin. Elemental composition of the root dentin did not differ significantly in porcine, equine and human dentin, but in canine dentin higher magnesium value in PTD compared to ITD was found. It is known that microstructural and chemical characteristics affect the strength of the adhesive bonds created among restorative materials and dentin. According to the results of this study, porcine dentin seems to be the most appropriate model to study dental materials to be used in human restorative dentistry.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 57%

Animal and human dentin microstructure and elemental composition

et al. 2014

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“…Common histological findings are enlarged dentinal tubules that occur in areas with larger numbers of tubules per area, when compared with dentin without sensitivity [9,10]. Symptom management ranges from the use of over the counter products (OTC) containing active ingredients that either desensitize the nerve tissue at the base of the dentin tubule or by encouraging the promotion of dentin tubule occlusion.…”

Section: Introductionmentioning

confidence: 99%

Strontium effects on root dentin tubule occlusion and nanomechanical properties

et al. 2016

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“…Elemental analysis has also been used in this case to evaluate the degree of substitution within bioapatite by quantifying the ratio between two elements using EELS, or often EDX [21][22][23]. For example, in an EDX study of mineralised dental tissues by Srot et al [21], peritubular dentine was found to contain a significantly lower Ca/P ratio (and higher and variable Mg/P) compared to intertubular dentine, which was taken as evidence that magnesium partially substitutes for calcium in the mineral.…”

Section: Substitutions In the Mineral Phasementioning

confidence: 99%

Analytical transmission electron microscopy at organic interfaces

Goode¹,

Porter²,

Kłosowski³

et al. 2017

Current Opinion in Solid State and Materials Science

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Organic materials are ubiquitous in all aspects of our daily lives. Increasingly there is a need to understand interactions between different organic phases, or between organic and inorganic materials (hybrid interfaces), in order to gain fundamental knowledge about the origin of their structural and functional properties. In order to understand the complex structure-propertyprocessing relationships in (and between) these materials, we need tools that combine high chemical sensitivity with high spatial resolution to allow detailed interfacial characterisation. Analytical transmission electron microscopy (TEM) is a powerful and versatile technique that can fulfil both criteria. However, the application of analytical TEM to organic systems presents some unique challenges, such as low contrast between phases, and electron beam sensitivity. In this review recent analytical TEM approaches to the nanoscale characterisation of two systems will be discussed: the hybrid collagen/mineral interface in bone, and the all-organic donor/acceptor interface in OPV devices.

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Transmission Electron Microscopic Characterization of Hypersensitive Human Radicular Dentin

Cited by 95 publications

References 11 publications

Animal and human dentin microstructure and elemental composition

Animal and human dentin microstructure and elemental composition

Strontium effects on root dentin tubule occlusion and nanomechanical properties

Analytical transmission electron microscopy at organic interfaces

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