口腔干燥乃因唾液减少和缺乏引起,是一种常见病,老年患者尤为多见。唾液流量减少可因多种不同的情况而引起,包括药物治疗、sjogren综合症或唾液腺的放疗等。诊断:可能伴随口干的症状和体征有龋齿的明显增多、腮腺肿大、唇炎并触痛、舌和颊粘膜发炎或溃疡、味觉改变;咀嚼、吞咽、说话、戴托牙的困难、口腔念珠菌病以及饮水需求欲增加,尤以夜间为甚。唾液腺的功能可用几种常用试验粗略地估计,亦可采用更为精确的技术如闪烁法或小块唾液腺活检。药物引起的口腔干燥:能引起唾液分泌 Dry mouth is due to the reduction and lack of saliva is a common disease, especially in elderly patients. Salivary flow reduction can be caused by a variety of different conditions, including drug treatment, sjogren syndrome or salivary gland radiotherapy. Diagnosis: may be accompanied by signs and symptoms of dry mouth have significantly increased caries, swelling of the parotid gland, cheilitis and tenderness, inflammation of the tongue and buccal mucosa or ulcers, taste changes; chewing, swallowing, speaking, wearing dentures difficult, oral Candidiasis and drinking water needs to be increased, especially at night. The function of the salivary glands can be roughly estimated using several commonly used tests, and more precise techniques such as scintigraphy or small salivary gland biopsies can be used. Drug-induced dry mouth: can cause saliva secretion