Alhadainy H A, Himel V T
Division of Endodontics, College of Dentistry, University of Tennessee, Memphis.
Oral Surg Oral Med Oral Pathol. 1993 Mar;75(3):362-6. doi: 10.1016/0030-4220(93)90152-t.
Perforations created in the pulpal floors of 30 extracted molars were repaired with amalgam, Cavit, and light cured glass ionomer cement. After the pulp chambers and access openings were filled with composite resin, the teeth were then immersed in 2% Erythrocin B solution for 1 week. After longitudinal sectioning of the teeth, dye penetration was measured. The results indicated significant differences between the three materials. Light cured glass ionomer exhibited the least dye penetration followed by Cavit and amalgam.
用汞合金、Cavit和光固化玻璃离子水门汀修复30颗拔除磨牙髓室底的穿孔。在用复合树脂填充髓腔和入口洞后，将牙齿浸入2%的赤藓红B溶液中1周。对牙齿进行纵切后，测量染料渗透情况。结果表明三种材料之间存在显著差异。光固化玻璃离子水门汀的染料渗透最少，其次是Cavit和汞合金。
