Miyazaki S, Iwasaki K, Onose H, Moore B K
Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan.
Am J Dent. 2001 Dec;14(6):361-6.
To investigate the bonding ability to enamel and dentin of new single application bonding systems (Reactmer and One-Up Bond) and compare these with a commercial compomer (Clicker/F2000), and 2-step resin-based composite bonding systems (Fluoro Bond/Lite-Fil II A and Single Bond/Z100).
Labial surfaces of extracted bovine teeth were ground on wet 600-grit SiC paper to expose a flattened area of enamel or dentin and then washed and dried with oil-free compressed air. These surfaces were treated according to each adhesive system's instructions and the restorative materials were condensed into a Teflon mold (2 mm height, 4 mm internal diameter) and then irradiated. The finished specimens were stored in 37 degrees C distilled water for 24 hours from the start of light exposure to the material. Then these specimens were tested in a shear mode at a crosshead speed of 1.0 mm/minute. The mean and standard deviation were subjected to an ANOVA followed by the Duncan test (P< 0.05).
The bond strengths of the single application bonding systems were 12.3 to approximately 14.5 MPa for enamel, and 13.7 to approximately 13.8 MPa for dentin. These values were comparable to those of the compomer (12.6 MPa for enamel, and 13.1 MPa for dentin), but lower than those of the two-step resin composite bonding systems (16.8 to approximately 21.7 MPa for enamel and 18.1 to approximately 18.4 MPa for dentin).
研究新型单次应用粘结系统(Reactmer和One-Up Bond)与牙釉质和牙本质的粘结能力,并将其与一种商用复合体(Clicker/F2000)以及两步法树脂基复合粘结系统(Fluoro Bond/Lite-Fil II A和Single Bond/Z100)进行比较。
将拔除的牛牙唇面在湿的600目碳化硅纸上研磨,以暴露出牙釉质或牙本质的平整区域,然后用无油压缩空气冲洗并干燥。根据每种粘结剂系统的说明对这些表面进行处理,将修复材料填入聚四氟乙烯模具(高2毫米,内径4毫米)中,然后进行照射。从材料开始光照起,将制成的标本在37℃蒸馏水中保存24小时。然后以1.0毫米/分钟的十字头速度在剪切模式下对这些标本进行测试。对平均值和标准差进行方差分析,随后进行邓肯检验(P<0.05)。
单次应用粘结系统与牙釉质的粘结强度为12.3至约14.5兆帕,与牙本质的粘结强度为13.7至约13.8兆帕。这些值与复合体的粘结强度(牙釉质为12.6兆帕,牙本质为13.1兆帕)相当,但低于两步法树脂复合粘结系统的粘结强度(牙釉质为16.8至约21.7兆帕,牙本质为18.1至约18.4兆帕)。