Roeder L B, Berry E A, You C, Powers J M
Section of Oral Biomaterials, Department of Basic Sciences, University of Texas-Houston Health Science Center, Dental Branch, TX 77030-3402, USA.
Oper Dent. 1995 Sep-Oct;20(5):186-90.
Human enamel and dentin were prepared with an air abrasion unit (KCP-2000), using two particle sizes (27 micrometers and 50 micrometers) of aluminum oxide. In vitro tensile bond strengths of a composite resin were determined after three enamel and three dentin surface treatments. Enamel treatments were: air abraded only, E-1; air abraded + adhesive, E-2; air abraded + acid etch + adhesive, E-3. Dentin surface treatments were air abraded only, D-1; air abraded + adhesive/no primer, D-2; air abraded + primer + adhesive, D-3. Etched enamel and dentin prepared with 600-grit SiC paper and adhesive served as controls. There were 10 replications for each condition. A dentin bonding system (Optibond) and a composite resin (Herculite XRV) were bonded to treated surfaces by light curing in an inverted, truncated cone die with a bond diameter of 3 mm. Samples were stored at 37 degrees C and 100% relative humidity for 24 hours and debonded in tension using a Universal Testing Machine at a 0.05 cm/min crosshead speed. Based on analysis of variance, there was no statistical difference between 27 micrometers and 50 micrometers aluminum oxide abrasive for both enamel and dentin. For enamel bond strengths, E-2 was significantly higher than E-1, and E-3 was significantly higher than E-1 and E-2. E-1 and E-2 were significantly lower than the control, while E-3 was not significantly different from the control (P < or = 0.05). For dentin bond strengths, D-2 was significantly higher than D-1, and D-3 was significantly higher than D-1 and D-2. All treatments except D-3 were significantly lower than the control (P < or = 0.05). Air-abrasion treatment of enamel and dentin alone resulted in reduced in vitro bond strengths as compared to etched enamel and dentin prepared with dentin adhesive and dentin primer.
使用空气磨蚀装置（KCP - 2000），采用两种粒径（27微米和50微米）的氧化铝制备人牙釉质和牙本质。在对三种牙釉质和三种牙本质表面进行处理后，测定复合树脂的体外拉伸粘结强度。牙釉质处理方式为：仅空气磨蚀，E - 1；空气磨蚀 + 粘结剂，E - 2；空气磨蚀 + 酸蚀 + 粘结剂，E - 3。牙本质表面处理方式为仅空气磨蚀，D - 1；空气磨蚀 + 粘结剂/无底漆，D - 2；空气磨蚀 + 底漆 + 粘结剂，D - 3。用600目碳化硅砂纸制备并使用粘结剂的酸蚀牙釉质和牙本质作为对照。每种情况有10个重复样本。将一种牙本质粘结系统（Optibond）和一种复合树脂（Herculite XRV）通过光固化粘结到倒置的截头圆锥模具中经处理的表面上，粘结直径为3毫米。样本在37摄氏度及100%相对湿度下储存24小时，然后使用万能材料试验机以0.05厘米/分钟的十字头速度进行拉伸脱粘。基于方差分析，对于牙釉质和牙本质，27微米和50微米的氧化铝磨料之间没有统计学差异。对于牙釉质粘结强度，E - 2显著高于E - 1，E - 3显著高于E - 1和E - 2。E - 1和E - 2显著低于对照，而E - 3与对照无显著差异（P≤0.05）。对于牙本质粘结强度，D - 2显著高于D - 1，D - 3显著高于D - 1和D - 2。除D - 3外，所有处理均显著低于对照（P≤0.05）。与用牙本质粘结剂和牙本质底漆制备的酸蚀牙釉质和牙本质相比，单独对牙釉质和牙本质进行空气磨蚀处理会导致体外粘结强度降低。
