复发性口腔溃疡是口腔粘膜病中最常见的疾病之一，患病率占口腔粘膜病的首位，因其病因复杂，无论从发病到治疗，个体差异均较大。我院应用氦－氖激光照射治疗，取得了满意疗效，现介绍如下。１　资料与方法１．１　一般资料　我院自１９８９年至１９９７年，用氦－氖激光治疗 Recurrent oral ulcer is one of the most common diseases of oral mucosal disease, prevalence rate of oral mucosal disease in the first place, because of its complex causes, both from the onset to treatment, individual differences are large. Our hospital application of helium-neon laser irradiation, and achieved satisfactory results, are described below. 1 Materials and Methods 1.1 General Information Our hospital from 1989 to 1997, with helium-neon laser treatment