龈组织可能由于汞合金充填物引起局部炎性反应,这些反应被归因于化学性刺激,但也可能是修复物上菌斑微生物增长引起。如果是化学性刺激所致,那么龈组织中金属离子含量就可能增加。两组活检标本,各为7名病人。一组取自与V类洞的汞合金充填物接触的龈区(部分充填物位于龈缘下方);另一组则取自不 Gingival tissue may cause local inflammatory reactions due to amalgam fillings that are attributed to chemical irritation but may also be caused by the growth of plaque microorganisms on the restoration. If it is caused by chemical stimuli, then the content of metal ions in the gingival tissue may increase. Two sets of biopsy specimens, each of seven patients. One from the gingival area (part of the fill located below the gingival margin) coming into contact with the amalgam fillings of the Class V caves; the other from the gingival