With IRM cement, evidence of discoloration of a cotton pellet placed directly beneath a 5mm thick filling at the floor of the cavity was observed twice as often compared with Cavit.

• 使用IRM暂封膏暂封时，染料试验证明，即便是5毫米的暂封厚度，暂封下方窝洞底部棉球的染色几率要比同等条件的CAVIT暂封膏高两倍。