Improvement of acid resistance of Zn-doped dentin by newly generated chemical bonds

Naito, Katsuaki; Kuwahara, Yasutaka; Yamamoto, Hiroko et al.

Materials and Design, 2022, 215, 110412

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Identifier to cite or link to this item: https://hdl.handle.net/11094/89753

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Title
Improvement of acid resistance of Zn-doped dentin by newly generated chemical bonds
Creator
NRID
1000070909506 1000070909506
CreatorName
Naito, Katsuaki
NRID
1000040635330 1000040635330
ORCID
0000-0002-5867-6463 0000-0002-5867-6463
researchmap permalink
yasutakakuwahara yasutakakuwahara
Scopus Author ID
16052495300 16052495300
CreatorName
Kuwahara, Yasutaka
NRID
1000060448107 1000060448107
CreatorName
Yamamoto, Hiroko
CreatorName
Matsuda, Yasuhiro
CreatorName
Okuyama, Katsushi
NRID
1000050508835 1000050508835
ORCID
0000-0003-0081-0591 0000-0003-0081-0591
researchmap permalink
i_taku i_taku
Scopus Author ID
35310484700 35310484700
CreatorName
Ishimoto, Takuya
NRID
1000030243182 1000030243182
ORCID
0000-0001-8052-1698 0000-0001-8052-1698
researchmap permalink
read0013987 read0013987
Scopus Author ID
7403896013 7403896013
CreatorName
Nakano, Takayoshi
CreatorName
Yamashita, Hiromi
NRID
1000040271027 1000040271027
researchmap permalink
read0185244 read0185244
Scopus Author ID
26021225700 26021225700
CreatorName
Hayashi, Mikako
Subject
Chemical state
Dental caries
Dentin
Fluoride
X-ray absorption spectroscopy
Zinc
Description
Naito K., Kuwahara Y., Yamamoto H., et al. Improvement of acid resistance of Zn-doped dentin by newly generated chemical bonds. Materials and Design, 215, 110412. https://doi.org/10.1016/j.matdes.2022.110412.
Abstract
Dental caries, the world's most prevalent infectious disease, is caused by the diffusion of hydroxyl ions into tooth structures. To prevent dental caries, the application of fluoride (F) and zinc (Zn) ions to teeth surfaces are potential effective measures. In this study, The ionic influence, especially the chemical bond of F and Zn, on the acid resistance of dentin were investigated by particle induced X-ray / gamma-ray emission, X-ray diffraction, X-ray photoelectron spectroscopy and X-ray absorption spectroscopy. The results showed Zn was distributed in the limited surface layer of dentin without altering its crystal structure. From the Zn K edge extended X-ray absorption fine structure, Zn incorporated into dentin was surrounded by oxygen and demonstrated four-fold coordination. The bond length and chemical state of Zn–O in Zn doped dentin suggested newly generated Zn–O covalent bond, which may improve acid resistance of dentin. This study showed that the atomic and molecular structures, such as the molecular distances and chemical state, influenced acid resistance of teeth, emphasizing the validity of chemical state analysis for understanding properties in biomaterials.
Publisher
Elsevier
Source Title
Materials and Design
Volume (Issue)
215
Page
110412
Date of Issued
2022-03-01
Language
English
Handle URL
https://hdl.handle.net/11094/89753
PISSN
02641275
eISSN
18734197
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1016/j.matdes.2022.110412
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
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Category
学術雑誌論文 Journal Article