Maturational changes in dentin mineral properties.
Maturational changes in dentin mineral properties.
复制标题
牙本质矿物特性的成熟变化。
DOI：
10.1016/j.bone.2006.12.061
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发表时间：
2007
期刊：
影响因子：
4.1
通讯作者：
Boskey,AL
中科院分区：
文献类型：
--
作者：
Verdelis,K;Lukashova,L;Wright,JT;Mendelsohn,R;Peterson,MGE;Doty,S;Boskey,AL
本研究定量分析了牙髓周围牙本质和成熟牙本质的性质变化。使用来自六个胎牛未脱钙切牙的切片。通过傅立叶变换红外成像获得的光谱图像上确定了连续成熟阶段的地幔和牙髓周围牙本质区域。在这些阶段的矿物属性对应的光谱参数进行了分析，并报告为一个函数的距离从宫颈的门牙，后者代表组织年龄。矿物质参数与距宫颈的距离相关。比较了套髓和髓周牙本质中这些参数的值。一个多相模式的变化被发现的所有参数检查，与大多数的变化发生在初始成熟期。套膜和髓周牙本质矿物性质的时间变化模式显示出不同的发育阶段，并且两个牙本质隔室并不相同。研究表明，牙本质中的矿物质成熟不是一个线性的过程，套牙本质是从牙髓周围的牙本质发育不同，在某些阶段的组织成熟过程中的不同的物理化学事件。
In this study the changes in properties of the maturing mantle and circumpulpal dentin were quantitatively analyzed. Sections from six fetal bovine undecalcified incisors were used. Regions of mantle and circumpulpal dentin of sequential maturation stages were identified on spectroscopic images acquired by Fourier Transform Infrared Imaging. Spectroscopic parameters corresponding to mineral properties at these stages were analyzed and reported as a function of distance from the cervix of the incisor, the latter representing tissue age. Mineral parameters were correlated with distance from the cervix. Values of these parameters in mantle and circumpulpal dentin were compared. A multi-phasic pattern of changes was found for all the parameters examined, with most of the alterations occurring in the initial maturation period. The patterns of temporal variation in mantle and circumpulpal dentin mineral properties show distinct developmental stages and were not identical for the two dentin compartments. The study showed that mineral maturation in dentin is not a linear process and that mantle dentin is developmentally distinct from circumpulpal dentin, presenting at certain stages different physicochemical events during the maturation of the tissue.