Mapping residual organics and carbonate at grain boundaries and the amorphous interphase in mouse incisor enamel.
Mapping residual organics and carbonate at grain boundaries and the amorphous interphase in mouse incisor enamel.
复制标题
DOI：
10.3389/fphys.2015.00057
复制
发表时间：
2015
影响因子：
4
通讯作者：
Joester D
中科院分区：
文献类型：
--
作者：
Gordon LM;Joester D
牙釉质已经发展到可以抵抗机械应力、疲劳和磨损等最严酷的条件。雪上加霜的是，它还暴露在口腔频繁的腐蚀性环境中。虽然其分级结构在机械弹性方面无与伦比，但镁离子分布的不均匀性以及镁取代的无定形磷酸钙（Mg-ACP）作为晶间相的存在最近被证明会增加小鼠牙釉质对酸侵蚀的敏感性。在此，我们研究了牙釉质的两种重要成分：残留有机物和无机碳酸盐的分布。我们发现有机物、碳酸盐和可能的水在小鼠牙釉质微晶、简单晶界和多个晶界的非晶界面中显示出不同的分布模式。这对于耐酸腐蚀、机械性能以及牙釉质晶体在釉质形成过程中生长的机制具有影响。
Dental enamel has evolved to resist the most grueling conditions of mechanical stress, fatigue, and wear. Adding insult to injury, it is exposed to the frequently corrosive environment of the oral cavity. While its hierarchical structure is unrivaled in its mechanical resilience, heterogeneity in the distribution of magnesium ions and the presence of Mg-substituted amorphous calcium phosphate (Mg-ACP) as an intergranular phase have recently been shown to increase the susceptibility of mouse enamel to acid attack. Herein we investigate the distribution of two important constituents of enamel, residual organic matter and inorganic carbonate. We find that organics, carbonate, and possibly water show distinct distribution patterns in the mouse enamel crystallites, at simple grain boundaries, and in the amorphous interphase at multiple grain boundaries. This has implications for the resistance to acid corrosion, mechanical properties, and the mechanism by which enamel crystals grow during amelogenesis.
登录
查看更多内容
影响因子：
3
作者：
Beniash, Elia;Metzler, Rebecca A.;Lam, Raymond S. K.;Gilbert, P. U. P. A.
通讯作者：
Gilbert, P. U. P. A.
影响因子：
3.6
作者：
DIEKWISCH, TGH;BERMAN, BJ;SLAVKIN, HC
通讯作者：
SLAVKIN, HC
影响因子：
3.9
作者：
Gault, Baptiste;Yang, Wenrong;Ringer, Simon P.
通讯作者：
Ringer, Simon P.
DOI：
10.1111/j.1151-2916.1987.tb04846.x
发表时间：
1987-01-01
影响因子：
3.9
作者：
CLARKE, DR
通讯作者：
CLARKE, DR
影响因子：
19
作者：
Li, Hanying;Xin, Huolin L.;Estroff, Lara A.
通讯作者：
Estroff, Lara A.