牙槽嵴低平患者全口义齿的制作,一直是口腔修复工作中的难题。要想取得良好的临床修复效果,义齿必须具备良好的固位和稳定。有学者采取扩展舌翼区伸展范围增加全口固位做了研究[1,2],但还不能满足牙槽嵴低平患者对固位的要求。本文主要介绍通过对FIT CHECKER的合理应用,提高义齿的密合度、确定义齿基托的伸展范围及义齿的边缘形态、厚度及磨光面形态,有效地调整义齿与唇、颊、舌肌的适合性来增加固位。 The production of complete dentures in alveolar ridge patients has always been a difficult issue in the field of oral rehabilitation. To achieve good clinical repair effect, the denture must have good retention and stability. Some scholars have taken to expand the extension of the flap area to increase full mouth retainer was studied [1,2], but still can not meet the alveolar ridge patients with low flat retention requirements. This article mainly introduces the reasonable application of FIT CHECKER to improve the fit of the denture, to determine the scope of denture base extension and dent edge shape, thickness and polished surface shape, effectively adjust the denture and lip, cheek, tongue muscle fit Sex to increase retention.