Nolan M, Combe E C
Scand Audiol. 1985;14(1):35-9. doi: 10.3109/01050398509045919.
Comparative properties have been determined for some commonly used ear impression materials (condensation reaction silicones) and some recently developed dental products (addition reaction silicones). Experiments have included measurement of dimensional stability, weight change on storage, viscosity, syringing characteristics, the energy required to tear the material and the stress relaxation characteristics. The major finding is that of the superb dimensional stability of the addition-cured silicones, which show no significant shrinkage over time. This is in contrast to a linear shrinkage of the order of 0.5% over a 48-hour period for the condensation silicones.
已对一些常用的耳印模材料（缩合反应硅酮）和一些最近开发的牙科产品（加成反应硅酮）的比较特性进行了测定。实验包括尺寸稳定性测量、储存时的重量变化、粘度、注射特性、撕裂材料所需的能量以及应力松弛特性。主要发现是加成固化硅酮具有极好的尺寸稳定性，随时间推移没有明显收缩。这与缩合硅酮在48小时内约0.5%的线性收缩形成对比。
