Structural analysis of strontium in human teeth treated with surface pre-reacted glass-ionomer filler eluate by using extended X-ray absorption fine structure analysis

被引：28

作者：

Uo, Motohiro ^{[1
,2
]}

Wada, Takahiro ^{[1
]}

Asakura, Kiyotaka ^{[3
]}

机构：

[1] Tokyo Med & Dent Univ, Grad Sch Med & Dent Sci, Adv Biomat Dept, Bunkyo Ku, 1-5-45 Yushima, Tokyo 1138549, Japan

[2] Univ Tokyo, Grad Sch Engn, Dept Mat Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138549, Japan

[3] Hokkaido Univ, Inst Catalysis, Kita Ku, North 21,West 10, Sapporo, Hokkaido 0010021, Japan

来源：

DENTAL MATERIALS JOURNAL | 2017年 / 36卷 / 02期

关键词：

Extended X-ray absorption fine structure; Strontium; Surface pre-reacted glass-ionomer filler; DENTIN; RESIN; EXCHANGE; IONS;

D O I：

10.4012/dmj.2016-266

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The bioactive effects of strontium released from surface pre-reacted glass-ionomer (S-PRG) fillers may aid in caries prevention. In this study, the local structure of strontium taken up by teeth was estimated by extended X-ray absorption fine structure analysis. Immersing teeth into S-PRG filler eluate increased the strontium content in enamel and dentin by more than 100 times. The local structure of strontium in enamel and dentin stored in distilled water was the same as that in synthetic strontium-containing hydroxyapatite (SrHAP). Moreover, the local structure of strontium in enamel and dentin after immersion in the S-PRG filler eluate was also similar to that of SrHAP. After immersion in the S-PRG filler eluate, strontium was suggested to be incorporated into the hydroxyapatite (HAP) of enamel and dentin at the calcium site in HAP.

引用

页码：214 / 221

页数：8

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