Shear bond strength of Scotchbond in vivo.
Shear bond strength of Scotchbond in vivo.
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Scotchbond 体内的剪切粘合强度。
DOI：
10.1016/0109-5641(91)90027-v
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Pashley,DH
中科院分区：
文献类型：
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作者：
McGuckin,RS;Tao,L;Thompson,WO;Pashley,DH
Scotchbond、HEMA/Scotchbond 和 Scotchbond 2 的剪切粘合强度是在狗犬齿、磨牙牙釉质和牙本质体内测量的。比较浅层、中层和深层牙本质的牙本质粘合强度。三种粘合系统的酸蚀釉质粘合强度范围为 10 至 11 MPa，并且没有统计学差异。 Scotchbond/Silux 与浅表、中尖牙和磨牙牙本质的粘合力为 3 MPa，没有统计学差异。经过 HEMA 处理的牙本质并不能始终如一地提高任何牙本质深度的任何牙齿类型的 Scotchbond 强度。任何一种牙齿类型的深层牙本质的粘合强度都显着降低。 Scotchbond 2/Silux 剪切粘合强度在浅层和中层尖牙牙本质中显着较高（6-8 MPa），但与对深尖牙牙本质或任何深度的磨牙牙本质进行的 Scotchbond 粘合没有不同。观察发现，磨牙粘合强度低于尖牙牙本质的剪切粘合强度，这表明牙齿之间以及牙本质内作为深度的函数存在重要的基质差异。狗模型可能有助于在临床试验之前筛选新的牙本质粘合系统。
The shear bond strengths of Scotchbond, HEMA/Scotchbond, and Scotchbond 2 were measuredin vivoin dog canine and molar enamel and dentin. Dentin bond strengths were compared in superficial, middle, and deep dentin. The acid-etched enamel bond strengths of the three bonding systems ranged from 10 to 11 MPa and were not statistically different. Scotchbond/Silux bonds to superficial and middle cuspid and molar dentin were 3 MPa and were not statistically different. HEMA-treated dentin did not consistently improve Scotchbond strengths to either tooth type at any dentin depth. Deep dentin from either tooth type yielded significantly lower bond strengths. Scotchbond 2/Silux shear bond strengths were significantly higher (6–8 MPa) in superficial and middle cuspid dentin but were not different from Scotchbond bonds made to deep cuspid dentin or to any depth of molar dentin.The observation that molar bond strengths are lower than those made to cuspid dentin indicates that there are important substrate differences between teeth as well as within dentin as a function of depth. The dog model may be useful for the screening of new dentin bonding systems prior to clinical trials.