近年来科学领域取得的重大成果和突破，为探索膳食、营养与慢性病包括口腔疾病之间的关系提供了科学依据，推动了国际组织及各国政府对通过改变膳食模式防治慢性病理念的重视。1989至2018年期间，联合国粮农组织和世界卫生组织曾多次组织专家商议并出台系列关于膳食与健康的全球战略和行动计划。中国、日本、美国等国分别出版居民膳食指南。遵循指南进行膳食指导， 许多慢性病发病率和死亡率均有所降低。然而由于种种原因，这些科学成果似乎并未对公众健康产生巨大的促进作用。本文分析了现代膳食模式与口腔健康的关系，并提出改变膳食模式防控口腔疾病的建议，供口腔同仁和政策决策者参考。“,”The achievements and breakthroughs in scientific field have provided scientific evidence for the relationship amongst diet, nutrition and chronic diseases, including oral diseases. Thus many international organizations and the governments of most countries were pushed to pay their attention to the prevention of chronic diseases by dietary patterns. From 1989 to 2018, the Food and Agriculture Organization of the United Nations and World Health Organization organized expert consultations for many times to issue a series of global strategies and action plans on diet and health. The governments of China, Japan and US had produced the Dietary Guidelines for Residents. The results showed that the morbidity and mortality of many chronic diseases had been decreased by following the dietary guidance. However, the scientific achievements did not seem to produce tremendous enhancement in public health for various reasons. In the present article, the authors analyses the relationship between contemporary dietary patterns and oral health, and make suggestions on preventing and controlling oral diseases via dietary patterns for policy makers and dental professionals.