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口腔黏膜的危险区域：口底-舌腹的U形区、颊粘膜内侧三角形口角区、软腭复合体口腔粘膜病学dias of the oral mucosa：研究口腔粘膜病的基础理论与临床诊治的学科。有关口腔和口周组织的健康和疾病研究的特殊学科，它主要是探讨与口腔疾病有关的内科学原则以及采用药物进行口腔疾病治疗的规律。斑macule，斑片patch：皮肤黏膜上的颜色改变，直径小于2cm的局限的颜色异常为斑，若斑密
