Vashisth Pallavi, Mittal Mudit, Goswami Mousumi, Chaudhary Seema, Dwivedi Swati
Department of Pedodontics, Institute of Dental Sciences, Bareilly, UP, India.
Department of Periodontology, Kothiwal Dental College, Moradabad, UP, India.
J Dent (Tehran). 2014 Mar;11(2):179-87. Epub 2014 Mar 31.
To evaluate the interfacial morphology and the bond strength produced by the three-step, two-step and single-step bonding systems in primary teeth.
Occlusal surfaces of 72 extracted human deciduous teeth were ground to expose the dentin. The teeth were divided into four groups: (a) Scotchbond Multipurpose (3M, ESPE), (b) Adh Se (Vivadent), (d) OptiBond All-in-One (Kerr) and (e)Futurabond NR (VOCO, Cuxhaven, Germany). The adhesives were applied to each group following the manufacturer's instructions. Then, teeth from each group were divided into two groups: (A) For viewing interfacial morphology (32 teeth), with 8 teeth in each group, and (B) For measurement of bond strength (40 teeth), with 10 teeth in each group. All the samples were prepared for viewing under SEM. The statistical analysis was done using SPSS version 15.0 software.
Observational measurement of tag length in different adhesives revealed that Scotchbond had the most widely spread values with a range from 12.20 to 89.10μm while OptiBond AIO had the narrowest range (0 to 22.50). The bond strength of Scotchbond Multipurpose was significantly higher (7.4744±1.88763) (p<0.001) as compared to Futurabond NR (3.8070±1.61345), Adhe SE (4.4478 ± 1.3820) and OptiBond-all-in-one (4.4856±1.07925).
The three-step bonding system showed better results as compared to simplified studied bonding systems.
评估三步法、两步法和一步法粘结系统在乳牙中产生的界面形态和粘结强度。
将72颗拔除的人乳牙的咬合面磨平以暴露牙本质。牙齿被分为四组:(a)Scotchbond多功能粘结剂(3M,ESPE),(b)Adh Se(Vivadent),(d)OptiBond全合一粘结剂(Kerr),(e)Futurabond NR(VOCO,德国库克斯港)。按照制造商的说明将粘结剂应用于每组。然后,将每组牙齿再分为两组:(A)用于观察界面形态(32颗牙齿),每组8颗;(B)用于测量粘结强度(40颗牙齿),每组10颗。所有样本均制备好用于扫描电子显微镜观察。使用SPSS 15.0软件进行统计分析。
对不同粘结剂中标签长度的观察测量显示,Scotchbond的数值分布最广,范围为12.20至89.10μm,而OptiBond AIO的范围最窄(0至22.50)。与Futurabond NR(3.8070±1.61345)、Adhe SE(4.4478±1.3820)和OptiBond全合一粘结剂(4.4856±1.07925)相比,Scotchbond多功能粘结剂的粘结强度显著更高(7.4744±1.88763)(p<0.001)。
与简化的研究粘结系统相比,三步法粘结系统显示出更好的结果。