Cover Image

He, Wei; Livingston, Jordan C.; Sobiesk, Evan R.; Zhou, Jian‐Ge; Zhu, Xianchun; Duan, Yuan-Yuan; Yang, Sen

doi:10.1002/jrs.5883

Cited by 1 publication

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A reduced mineral crystallinity, corresponding to a narrowing in the bandwidth of phosphate peak, indicates an increase in the mineral size and an increase in mineralization. [11,[16][17][18][19] Raman microspectroscopy also allows evaluation of the hydration of the different types of tissues as MMA infiltrates microporosity and substitutes to water in hydrated tissues during histological embedding. [6,12] The most typical peaks are~813 cm −1 ( -CH 2 ) and 1735 cm −1 ( -C =O).…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, we confirm by spectrum analysis and imaging what has previously been presented for dental tissues. [5,11,14,18,[20][21][22] Enamel is the hardest, higher crystalline tissue of the body, its matrix contains less than 5% organic matter, and it is poorly hydrated. This was evidenced on the spectra and on the mapping of the coronal dentine-enamel junction.…”

Section: F I G U R Ementioning

confidence: 99%

“…Some areas have an increased carbonateto-phosphate ratio [Colour figure can be viewed at wileyonlinelibrary.com] of the amide III, amide I, and a -CH 2 at 2,940 cm −1 , these vibrations are not present in enamel. [18,19,23] The cellular cementum analyzed here covers the apical half of the root and contains collagen fibers and stellate cells (cementocytes) buried in lacunae. These cells are very similar to the osteocytes enclosed in their lacunae in bone.…”

Section: F I G U R Ementioning

confidence: 99%

See 2 more Smart Citations

Raman spectroscopic analysis and imaging in two cases of benign cementoma: Comparison with dental and bone tissues

Chappard

Guillaume

Teman³

et al. 2020

J Raman Spectroscopy

View full text Add to dashboard Cite

Benign cementoma is a rare tumor of the jaws whose origin is still debating. The tumor may derive from the dental cementum or the bone surrounding the socket. We have studied the profiles of enamel, dentine, and cementum from normal teeth and alveolar and cortical bone of the mandible. Raman spectroscopy was used to compare the spectra of these tissues embedded in poly(methylmethacrylate) from 300 to 3,100 cm−1. The degree of mineralization, carbonate‐to‐phosphate ratio, and crystallinity were derived. Tissue hydration was determined by measuring the ratio of the 813 cm−1 band of methacrylate to the 960 cm−1 band of phosphate. Raman spectroscopic imaging was obtained on large tissue areas with a bandwidth from 500 to 1,620 cm−1. Maps of the different peak ratio were obtained to analyze the mineral and organic phases (crystallinity, carbonate‐to‐phosphate, degree of mineralization) together with tissue hydration. Cementomas appeared highly heterogeneous, and their matrix possessed histological and spectroscopic characteristics that resemble highly calcified woven bone with a poor organization of the hydroxyapatite crystals.

show abstract