牙菌斑是指细菌停留在牙面以后,几天时间就形成一种生态环境,即牙面上以细菌为主的生态系。由于口腔不断和有细菌的空气、水、食物和饮料接触,又为细菌提供了良好的生长发育环境。在身体和口腔健康都良好的情况下,口腔内的细菌和宿主之间保持着平衡,一方面是细菌不断地靠宿主口腔提供的良好 Dental plaque refers to the bacteria in the tooth surface after a few days to form an ecological environment, that is, the bacteria on the tooth surface of the ecosystem. As the oral and bacterial air, water, food and drink contact, but also for bacteria to provide a good growth and development environment. In good health both in the body and in the mouth, there is a balance between the bacteria and the host in the mouth, on the one hand, the good bacteria that the bacteria constantly provide by the mouth of the host