CONCLUSION: Both of sintered bone and lyophilizedcollagen membrane are expected to be the materials for scaffolds in periodontal tissue engineering.
结论：煅烧骨和冻干胶原膜均有望成为牙周组织工程支架材料。
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Methods Porcine skin collagen was harvested and mixed and precipitated with chondroitin 6 sulfate, and then lyophilized for 48 hours to form sheets of highly porous membrane.