据文献报道,低强度超声对RAS具有促进愈合等作用,为进一步评价其疗效,作者进行了临床试验研 究。 采用头内埋有压电超声波发射器的牙刷发射低强度超声,刷牙时,与之接触的牙龈和口腔粘膜均可受到超声波刺激。 选取50名无其他相关疾病的RAS患者作为研究对象。询问过去1年中RAS发作次数,每次溃疡数目(无论大小)及每个溃疡灶持续时间(以日为单位),并 According to the literature, low intensity ultrasound can promote the healing of RAS. To further evaluate its efficacy, the authors conducted clinical trials. Toothbrush with a piezoelectric ultrasonic transmitter embedded in the head emits low-intensity ultrasound. When brushing, the gingiva and oral mucosa in contact with the toothbrush are subject to ultrasonic stimulation. Fifty patients with RAS without other related diseases were selected as the study subjects. Inquire about the number of episodes of RAS, the number of ulcers per ulm (regardless of size) and the duration of each ulcer (in days) over the past year, and