本文介绍了磷酸锌粘接剂(ZnP)和玻璃离子粘固剂(GI)的特点以及在正畸中的应用,预言GI将成为下一世纪的口腔正畸粘接材料。 ZnP的缺点:①严格地讲ZnP是位于带环与牙面之间的间隙封闭剂,其固位原理是机械作用而不是化学作用。②ZnP最致命的弱点是高度水溶性,尤其在普遍存有有机酸的口腔环境中,从而导致牙釉质的脱钙现象。③ZnP属低抗压强度的脆性材料,当后牙带环受 This article describes the characteristics of zinc phosphate binder (ZnP) and glass ionomer cement (GI) and its application in orthodontics, predicting that GI will become the orthodontic adhesive material of the next century. The disadvantages of ZnP: ① Strictly speaking, ZnP is a gap-sealing agent located between a band ring and a tooth surface. Its principle of immobilization is a mechanical action rather than a chemical action. ② ZP the most deadly weakness is highly water-soluble, especially in the presence of organic acids in the oral environment, resulting in decalcification of enamel. ③ ZnP is a brittle material with low compressive strength, when the loop is affected by the tape