CONCLUSION: the cytotoxic effect of 4 kinds of dental restorative materials on pulp cell was relatively low in vitro, which indicated that all the materials has good biocompatibility.

结论：4种牙体修复材料均对牙髓细胞的生长无不良影响，具有良好的生物相容性。

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Conclusion the expression of TIMP-1, -2 in human dental pulp cell and tissue is detected, and this provides the basis for further studying on the mechanism of TIMP in dental pulp.

结论TIMP 1、2在人牙髓成纤维细胞及牙髓组织均有表达，为进一步研究TIMP在牙髓组织中的作用机理提供实验依据。

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Methods:The culture supernatant of monocytes stimulated with Fn LPS was applied to human dental pulp cell in vitro, and activity of ALP in human dental pulp fibroblast was monitored by OD test.

方法：采用经具核梭杆菌LPS刺激的单核细胞培养上清作用于体外培养的人牙髓细胞，通过OD值测定，观察单核细胞培养上清对人牙髓成纤维细胞碱性磷酸酶（ALP）活性的影响。

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In New Zealand Scion Research works to convert the waste stream from pulp and paper processing into a blend of microbial cell wall debris and plastic called polyhydroxyalkanoate, or PHA. Plant a PHA flower pot into the ground and and it biodegrades.

FORBES: Revving Up Nature's Engines