方法：对80岁以上老年人口腔卫生知识问卷调查。
Method: Questionnaires were performed about oral health care in the elderly patients and the results were analyzed statistically.
认为加强中老年人口腔卫生保健教育，是提高口腔疾病治疗率的重要环节。
It indicated that strengthen the education of oral hygiene to old people is an important link to improve cure rate of oral diseases.
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