Gwinnett A J
Department of Oral Biology/Pathology, School of Dental Medicine, State University of New York, Stony Brook.
Am J Dent. 1994 Jun;7(3):144-8.
The purpose of this study was to investigate the effect of air drying and remoistening of dentin on resin composite bond strength and to determine the extent to which the outermost, collagenous network and surface area of chemically conditioned dentin contributed to interfacial strength. Three components made up the experimental design: The first component comprised 12 experimental groups each containing 10 caries-free molar teeth. Shear bond strength values with dentin were measured for conditioned and non-conditioned dentin to which All-Bond 2 and BisFil were applied. The following values (MPa) were obtained for the groups conditioned with 10% phosphoric acid for 20 seconds: Group 1 (wet control) 24.20 +/- 2.03; Group 2 (10 seconds dried) 19.83 +/- 5.42; Group 3 (30 seconds dried) 11.56 +/- 4.93; Group 4 (10 seconds dried, 5 seconds. remoistened) 25.38 +/- 3.89; Group 5 (30 seconds dried, 5 seconds, remoistened) 24.66 +/- 4.54; Group 6 (5% NaOCl/wet) 25.97 +/- 3.61. For the non-conditioned groups the values were: Group 7 (wet control) 21.54 +/- 4.07; Group 8 (10 seconds dried) 14.62 +/- 3.55; Group 9 (10 seconds dried, 5 seconds remoistened) 16.95 +/- 4.04; Group 10 (5% NaOCl/wet) 13.67 +/- 4.39; Group 11 (air abrasive action) 18.78 +/- 3.62; Group 12 (air abrasive/5% NaOCl) 19.87 +/- 2.03.(ABSTRACT TRUNCATED AT 250 WORDS)
本研究的目的是调查牙本质空气干燥和再湿润对树脂复合材料粘结强度的影响，并确定化学处理牙本质的最外层、胶原网络和表面积对界面强度的贡献程度。实验设计由三个部分组成：第一部分包括12个实验组，每组包含10颗无龋磨牙。测量了应用全粘结2型粘结剂（All-Bond 2）和BisFil粘结剂的处理和未处理牙本质与牙本质之间的剪切粘结强度值。用10%磷酸处理20秒的实验组获得了以下值（MPa）：第1组（湿对照组）24.20±2.03；第2组（干燥10秒）19.83±5.42；第3组（干燥30秒）11.56±4.93；第4组（干燥10秒，再湿润5秒）25.38±3.89；第5组（干燥30秒，再湿润5秒）24.66±4.54；第6组（5%次氯酸钠/湿）25.97±3.61。未处理组的值为：第7组（湿对照组）21.54±4.07；第8组（干燥10秒）14.62±3.55；第9组（干燥10秒，再湿润5秒）16.95±4.04；第10组（5%次氯酸钠/湿）13.67±4.39；第11组（空气喷砂处理）18.78±3.62；第12组（空气喷砂/5%次氯酸钠）19.87±2.03。（摘要截断于250字）
