患者刘某、男44岁。园6543456 楔状缺损遇冷热痛而就诊,行银汞合金充填。约半月后两颊粘膜有粗糙感,有时表面溃烂并有轻微疼痛。因此于86年初来我院就诊。口腔检查:6543456颈部楔状缺损已行银汞合金充填,充填物完整牙龈及牙体均正常。两侧充填体相应颊粘膜见灰白色网状条纹,无充血、溃破及触痛。临床印象为口腔粘膜扁平苔癣。经活检确诊为口腔粘膜扁平苔癣。 Liu patients, male, 44 years old. Park 6543456 wedge-shaped defect hot and cold pain and treatment, the line filled with amalgam. About half a month after the buccal mucosa has a rough feeling, and sometimes the surface ulceration and a slight pain. So in early 86 to our hospital. Oral examination: 6543456 Cervical wedge-shaped defect silver amalgam filling, complete filling of the gums and teeth are normal. Fill the corresponding side of the buccal mucosa see gray mesh stripes, no congestion, ulceration and tenderness. Clinical impression of oral mucosa lichen planus. Biopsy confirmed oral lichen planus lichen planus.