【摘要】 复发性阿弗它溃疡是口腔粘膜疾病中的常见病，有明显的灼痛周期性复发是本病的规律本文观察了对例复发性阿弗它溃疡（RAU）患者在正常时与发病初期及恢复期不同流速时的唾液pn值的改变发现同一患者发病初期比正常时唾液pH值明显升高．t值检验有显著差异，而恢复期唾液pH值接近正常．这一结果将为其病因的研究提供一局部不可忽视的因素更多还原

【Abstract】 Recurrent aphthous ulcer is a common disease of oral mucose iuness. lt has obvions burn, whose regular patter is having a periodic relapse. By observing 79 cases of patients salivary pH changes in the normal state, early state of the iuness and the state of recorerying, the author found that the same patient’s salivary pH in the normal state increased evidently during the earty itate of the disease, t’s examination had a great difference. However, the salivary pH in the icoverying state trends to normality. The result will offer an important factor for studying the cause of disease.更多还原