作者研究了有机磷酸双酯（ＤＰＲ）口腔粘接剂，用抗张粘接试验方法考察了它的粘接性能。结果表明：１．ＤＰＲ口腔粘接剂能成倍提高其与人牙釉质和人牙本质的抗张粘接强度，对牙科用合金及自凝塑料也具有较强的粘接力，是一种用途广泛的新型口腔粘接剂，也是一种有发展潜力的骨修复材料。２．牙面蚀刻剂能明显提高抗张粘接强度，３７％磷酸蚀刻剂适用于牙釉质，ＤＴ－Ⅰ牙面蚀刻剂适用于牙本质，ＤＴ－Ⅱ牙面蚀刻剂适用于牙釉质和牙本质。 The author studied the organic phosphate diester (DPR) oral adhesive, using tensile testing method to examine its adhesive properties. The result shows: 1. DPR oral adhesive can exponentially increase its tensile bond strength with human enamel and human dentin, and also has strong adhesive force to dental alloy and self-curing plastic. It is a new oral cavity with wide application Adhesives, but also a promising bone repair materials. 2. Tooth surface etchant can significantly improve tensile strength, 37% phosphoric acid etchant for enamel, DT-I tooth surface etchant for dentin, and DT-II tooth surface etchant for enamel and dentin.