Surface energy of bovine dentin and enamel by means of inverse gas chromatography

Okulus, Zuzanna; Strzemięcka, Beata; Czarnecka, Beata; Buchwald, Tomasz; Voelkel, Adam

doi:10.1016/j.msec.2015.01.038

Cited by 16 publications

(15 citation statements)

References 60 publications

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“…The bands of the Raman scattering spectrum are dominated by the ν 1 PO 4 3− internal mode near 959 cm −1 . The other markers of the mineral component connected with the ν 2 and ν 4 PO 4 3− vibrations are detected near 431 cm −1 and 589 cm −1 respectively . The internal modes of the CO 3 2− are detected near 1072 cm −1 ( ν 1 mode of B‐type carbonate) and 1103 cm −1 (mode of A‐type carbonate) .…”

Section: Resultsmentioning

confidence: 92%

Raman spectroscopy as a tool of early dental caries detection–new insights

Buchwald

Okulus

Szybowicz

2017

J Raman Spectroscopy

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The aim of this study was to investigate the effectiveness of Raman spectroscopy in determination of changes in composition and structure of human tooth enamel with caries by use of new parameters such as the Raman band position, the full width at half maximum of Raman band and line shape of Raman band. The values of spectroscopic parameters were obtained by analysis of Raman scattering spectra. We proposed to base the diagnosis on several parameters determined by simultaneous analysis of Raman scattering, Rayleigh scattering and fluorescence emission. We verified the correlations between the values of the few selected parameters and the severity of dental caries. Raman band spectral parameters, such as position and line shape, can be useful to indicate the enamel caries changes. Moreover, it is possible to detect early caries by analysis of background in the Raman scattering spectrum related to the Rayleigh scattering and fluorescence emission. We demonstrated that a few independent parameters obtained by simultaneous analysis of three different physical phenomena could allow unambiguous determination of the early caries occurrence in the enamel. The published results give new insights into early caries detection and demonstrate the new possibilities of Raman spectroscopy as a diagnostic tool to recognize the caries disease. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 92%

Raman spectroscopy as a tool of early dental caries detection–new insights

Buchwald

Okulus

Szybowicz

2017

J Raman Spectroscopy

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“…Schilke et al reported similarities between human and bovine teeth in terms of numbers and diameters of dentinal tubules. Teruel Jde et al further demonstrated similarities in chemical composition, and Okulus et al reported similarities in terms of surface energy in bovine and human dentin and enamel. Hence, bovine teeth were selected for the present study.…”

Section: Discussionmentioning

confidence: 96%

Comparative evaluation of fracture resistance using two rehydration protocols for fragment reattachment in uncomplicated crown fractures

Aripirala

Tewari

Mathur

et al. 2019

Dental Traumatology

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Background/Aims Uncomplicated crown fracture is the most common traumatic dental injury. The International Association of Dental Traumatology has recommended fragment reattachment as the best method for restoring uncomplicated crown fractures of permanent teeth. Dehydration can affect fracture resistance after reattachment. However, a standard protocol for rehydration is still lacking. Hence, the aim of this study was to design a humidification chamber and assess its efficacy for improving the rehydration of tooth fragments and increasing fracture resistance after reattachment. Materials and Methods Sixty mandibular bovine incisors with similar dimensions and free of any structural deformities were fractured and randomized into five groups: Group I, Control Group (sound teeth); Group II (dehydrated for 24 hours); Group III (rehydrated in distilled water for 15 minutes); Group IV (rehydrated in a humidification chamber for 15 minutes); and Group V (restored with composite). A humidification chamber was designed and used for rehydration for 15 minutes in Group IV. Fragments in Group III were immersed in distilled water for 15 minutes. Reattachment procedures and materials remained the same in all groups. Fracture resistance was tested in a universal testing machine, and statistical analysis was done by Stata‐14. Results The Control Group with sound teeth (Group I) exhibited a maximum value of 282 ± 10.32 N, while Group II (fragment reattached without rehydration) had the least fracture resistance, 49.75 ± 5.2 N. Rehydration by means of the humidification chamber protocol (Group IV) resulted in significantly higher fracture resistance (150.54 ± 6.49 N) than in Group III (rehydration by means of immersion). Conclusions Fracture resistance after fragment reattachment was significantly affected by the rehydration of fragments for 15 minutes in the humidification chamber. Fragment reattachment after rehydration showed better fracture resistance than the composite restorations.

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“…The other bands of the HA crystal occurring in two regions from 355 to 490 cm −1 and from 508 to 635 cm −1 are related to the ν 2 and ν 4 phosphate vibrations, respectively. The band corresponding to ν 3 phosphate vibration is visible in the region from 1,000 to 1,100 cm −1 . The positioning of all bands (Table ) and the low values of the full width at half maximum of band at 960 cm −1 (about 12 cm −1 ) in the spectra obtained from the monolithic materials after multiples cycles prove that the HA crystals occur in the surface layer.…”

Section: Resultsmentioning

confidence: 79%

Siliceous‐based monolithic materials coated with a hydroxyapatite layer: Preparation and investigation of drug affinity by Raman spectroscopy

Zielińska

Buchwald

Marańda

et al. 2019

J Raman Spectroscopy

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Monolithic materials based on silica and hydroxyapatite was applied as tool for investigation of interactions between bone and potential antiresorptive drugs. First type of material was created on the basis of tetramethyl orthosilicate and trimethoxymethylsilane. Second type of material contained additionally chitosan in its structure. Ceramic fraction of monoliths was prepared in two ways: by incorporation of hydroxyapatite during crosslinking or by using soaking method (hydroxyapatite mineralization on the surface). Monolithic materials were prepared in two different forms: in the form of a cylinder and as a filling of a needle for monolithic in‐needle extraction (MINE) device. Several techniques were applied to evaluate the properties of 19 prepared materials: energy dispersive X‐ray spectroscopy, scanning electron microscopy, and Raman spectroscopy, which allowed to confirm and characterize occurred hydroxyapatite layer. Sorption–desorption investigation, with the sodium risedronate as test compound, was made with using ultraviolet‐visible spectroscopy, to assess the affinity of the bisphosphonate for the ceramic layer of the material as a bone substitute. One of 15 prepared MINE devices exhibits sorption ability of risedronate equal to 97%.

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Surface energy of bovine dentin and enamel by means of inverse gas chromatography

Cited by 16 publications

References 60 publications

Raman spectroscopy as a tool of early dental caries detection–new insights

Raman spectroscopy as a tool of early dental caries detection–new insights

Comparative evaluation of fracture resistance using two rehydration protocols for fragment reattachment in uncomplicated crown fractures

Siliceous‐based monolithic materials coated with a hydroxyapatite layer: Preparation and investigation of drug affinity by Raman spectroscopy

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