口腔屏障膜在位点保存术中的研究进展

牙槽嵴是一种牙齿支持结构，随着牙的萌出而发育，拔牙后可发生体积和形态的改变，尤其是前牙美学区牙槽嵴吸收更明显，这可能会限制后期的种植或传统修复治疗。应用位点保存可以防止骨吸收从而减少拔牙后的骨量丢失，其中生物屏障膜在位点保存术中起着关键作用，可阻止成纤维细胞和上皮细胞向骨缺损区生长，确保骨缺损区的成骨过程不受上皮组织的干扰。本文就位点保存的意义和屏障膜的理想性能，以及屏障膜在位点保存中的临床应用等3个方面，对口腔屏障膜在位点保存术中的研究进展进行综述。

Research progress of oral barrier membrane in site preservation

Alveolar ridge is a kind of dental support structure, which develops with the eruption of teeth. The volume and morphology can change after tooth extraction, especially the absorption of alveolar ridge in the aesthetic area of front teeth is more obvious, which may limit the later implantation or traditional restoration treatment. Application site preservation can prevent bone absorption and reduce bone loss after tooth extraction. Biological barrier membrane plays a key role in site preservation, which can prevent fibroblasts and epithelial cells from growing to the bone defect area and ensure that the bone formation process in the bone defect area is not disturbed by epithelial tissue.In this paper, the significance of site preservation, the ideal performance of the barrier membrane and the clinical application of the barrier membrane in site preservation were reviewed.