Methods:Based on successful laboratory research, we treated the patients with bone loss around instant implants by using frozen homologous periosteum as GuidedTissueRegenerationmembrane.
Objective: to investigate the biocompatibility of chitosan as membrane for periodontal guidedtissueregeneration (GTR).
目的:观察壳聚糖作为牙周引导组织再生膜的生物相容性。
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Conclusion: From the point of view of mechanical strength and degradation performance, Chitosan membrane meet the requirements of guidedtissueregeneration.