Novel compositions, especially light curable compositions, are provided which are coherent, but frangible when cured. Preferred compositions comprising a major proportion of inert, preferably inorganic filler material, polymerizable resin and frangibility enhancing material are provided which are light curable. The materials are particularly useful for "temporary" dental fillings and removable endodontic fillings. The cured materials are easily dissected, comminuted and removed as desired after curing without trauma to the filled teeth.
提供了新颖的组合物,特别是光固化组合物,这些组合物在固化时是连贯的,但又是易碎的。 提供了由惰性(最好是无机填充材料)、可聚合
树脂和易碎性增强材料按主要比例组成的光固化组合物。 这些材料特别适用于 "临时 "牙科填充物和可移动的牙髓填充物。 固化的材料在固化后很容易根据需要剖开、粉碎和移除,而不会对填充的牙齿造成创伤。