EFFECTS OF AIR-DRYING INVITRO ON HUMAN-DENTIN PERMEABILITY
EFFECTS OF AIR-DRYING INVITRO ON HUMAN-DENTIN PERMEABILITY
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DOI：
10.1016/0003-9969(84)90164-x
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发表时间：
1984-01-01
影响因子：
3
通讯作者：
GALLOWAY, SE
中科院分区：
文献类型：
--
作者：
PASHLEY, DH;STEWART, FP;GALLOWAY, SE
通过测量实验前后牙本质的导水率，评价0、0.5、2、5min的气流对牙本质的蒸发作用。当小管充满水时，即使长时间的蒸发也不会对牙本质渗透性产生影响。充满生理盐溶液的小管产生了时间依赖性的牙本质渗透性降低。小管充满1.5%的白蛋白在水中给最大的减少牙本质渗透性。这些影响在未酸蚀牙本质中比酸蚀牙本质更显著。牙本质敏感性降低的一部分，临床上产生的长期空气冲击可能是由于沉积的有机和无机成分的牙本质液在表面。
The effects of evaporation produced by air blasts of 0, 0.5, 2 or 5 min to dentin in vitro were evaluated by measuring dentin hydraulic conductance before and after each trial. When the tubules were filled with water, even prolonged evaporation had no effect on dentin permeability. Tubules filled with physiological salt solution produced a time-dependent decrease in dentin permeability. Tubules filled with 1.5% albumin in water gave the largest reductions in dentin permeability. These effects were more marked in unetched as opposed to acid-etched dentin. Part of the reduction in dentin sensitivity produced clinically by prolonged air blasts may be due to precipitation of organic and inorganic constituents of dentinal fluid at the surface.