Asmussen E, Hansen E K, Peutzfeldt A
Institute of Dental Materials and Technology, Royal Dental College, Copenhagen, Denmark.
J Dent Res. 1991 Sep;70(9):1290-3. doi: 10.1177/00220345910700091101.
The aim of the present study was to investigate the effect of the solubility parameter of the intermediary resin in the Gluma system on the bonding to dentin. The solubility parameter of the resins was varied between 18.8 x 10(3) and 21.1 x 10(3) J(1/2)/m3/2 by varying the composition of the resin. The efficacy of the bonding system was determined by measurements of marginal gaps formed by polymerization contraction of a restorative resin in dentin cavities treated with the bonding system. The bonding system had maximum efficacy at a solubility parameter of the intermediary resin of delta = 20.0 x 10(3) J(1/2)/m3/2. This finding corroborates a concept of bonding to dentin that involves a mechanical interlocking by interpenetrating resins.
本研究的目的是调查Gluma系统中介树脂的溶解度参数对牙本质粘结的影响。通过改变树脂的组成，使树脂的溶解度参数在18.8×10³至21.1×10³ J¹/²/m³/²之间变化。通过测量用粘结系统处理的牙本质龋洞中修复性树脂聚合收缩形成的边缘间隙，来确定粘结系统的效果。当中间树脂的溶解度参数为δ = 20.0×10³ J¹/²/m³/²时，粘结系统具有最大效果。这一发现证实了一种牙本质粘结的概念，即通过互穿树脂实现机械互锁。
