The relationship between dentin microhardness and tubule density.
The relationship between dentin microhardness and tubule density.
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DOI：
10.1111/j.1600-9657.1985.tb00653.x
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发表时间：
1985-10
期刊：
影响因子：
--
通讯作者：
D. Pashley;A. Okabe;P. Parham
中科院分区：
文献类型：
--
作者：
D. Pashley;A. Okabe;P. Parham
摘要 本研究的目的是确定正常人恒牙牙本质显微硬度与牙本质小管密度之间可能的相关性。开发了一种新技术，可以连续测定同一组肾小管的显微硬度和肾小管密度，从牙本质-釉质交界处开始，直至牙髓腔。结果表明，牙本质显微硬度与管状密度之间存在高度统计显着的负相关性。随着接近牙髓腔，管状密度增加。这与牙本质显微硬度的降低有关，可能是由于管间牙本质数量的减少和单个管直径的增加所致。
Abstract The purpose of this study was to determine the possible correlation between dentin microhardness and dentin tubule density in normal human permanent teeth. A new technique was developed which permitted serial determinations of the micro-hardness and tubule density of the same group of tubules, beginning near to the dentino-enamel junction and progressing to the pulp chamber. The results show that there is a highly statistically significant inverse correlation between dentin micro-hardness and tubular density. Tubular density increased as the pulp chamber was approached. This was associated with a decrease in dentin microhardness, presumably due to a decrease in the amount of intertubular dentin and an increase in individual tubular diameter.