Munksgaard E C, Irie M, Asmussen E
J Dent Res. 1985 Dec;64(12):1409-11. doi: 10.1177/00220345850640121801.
Gluma-treated dentin was covered with various resins before a microfilled composite was applied. The strength of the bond between dentin and composite established by this procedure was measured in shear and tensile tests. The effectiveness of the bonding was further tested by the width of the marginal contraction gap around fillings made in dentin by the above procedure. Resins containing propanal promoted shear bond strength of about 15 MPa. The tensile bond strength exceeded 22 MPa by one of the resins, but could not be measured because of frequent rupture in the composite. Between 30 and 70% of the fillings were without contraction gaps when propanal or p-toluenesulfinate-containing resins were used. It is proposed that oxygen inhibition of the polymerization on the dentin surface suppresses the bonding. Resins containing reducing agents may reduce oxygen inhibition and increase bonding by the adhesive.
在应用微填料复合材料之前，用Gluma处理过的牙本质先用各种树脂覆盖。通过这种方法建立的牙本质与复合材料之间的粘结强度在剪切和拉伸试验中进行了测量。通过上述方法在牙本质中制备的填充物周围边缘收缩间隙的宽度进一步测试了粘结的有效性。含有丙醛的树脂促进了约15MPa的剪切粘结强度。其中一种树脂的拉伸粘结强度超过22MPa，但由于复合材料中频繁破裂而无法测量。当使用含丙醛或对甲苯亚磺酸盐的树脂时，30%至70%的填充物没有收缩间隙。有人提出，牙本质表面聚合反应的氧抑制会抑制粘结。含有还原剂的树脂可能会减少氧抑制并增加粘合剂的粘结力。
