ANALISYS OF TEMPERATURE CHANGES DURING LIGHT POLYMERIZATION OF RESIN MODIFIED CALCIUM SILICATE CEMENTS

Resin-modified calcium silicate cements belong to the fourth generation. This type of material is a combination of calcium silicates and resin. They are hardened by two types of reactions: light polymerization and hydration. Рarameters related to temperature increases during light polymerization were analyzed. The main factors affecting the amount of generated heat are the type of light sources (LS), the light intensity of LS, the position of LS, the distance between the material surface and LS, the composition and transmission properties of hybrid material, curing time, remaining dentin thickness and the thickness of the layer of hybrid CSCs. Different methods of measuring temperature changes are criticall discussed.

树脂改性硅酸钙水门汀（resin-modified calcium silicate cements）属于第四代产品。该类材料由硅酸钙与树脂复合而成，其固化过程通过两种反应机制实现：光聚合反应与水化反应。本研究针对光聚合过程中的温升相关参数展开了分析。影响产热量的主要因素包括：光源（Light Sources, LS）类型、光源光强、光源位置、材料表面与光源间的距离、复合材料的组成与透光性能、固化时间、剩余牙本质厚度，以及复合硅酸钙水门汀层的厚度。本文还对温度变化的各类测量方法进行了批判性讨论。