论文部分内容阅读
由银汞充填材料所引起的粘膜染色是常见的,虽然这种银汞染色与其它具有严重的色素性损害相似,但前者容易确定诊断。粘膜之被银汞染色可以是由于:(1)磨光时粗心或划破粘膜,从而将银汞的细末带入创口;(2)在拔牙时将银汞碎片推入牙槽窝内;(3)在根管治疗时将原来残留的银汞充填推入创口内;(4)被气涡轮钻将金属细
Mucosal staining caused by amalgam fill materials is common, and while this amalgam staining is similar to other severely pigmented lesions, the former makes it easy to confirm the diagnosis. Mucosal staining with amalgam can be caused by: (1) Careless or scratch the mucosa during burnishing to bring the fine end of the amalgam into the wound; (2) The silver-mercury fragments are pushed into the alveolar nest during tooth extraction; (3) pushing the original remaining amalgam filling into the wound during root canal treatment; (4) getting the metal fine