每次刷三个牙面是指应刷洗牙齿的唇颊面、舌面和咬合面三个牙面。许多人每天刷牙只刷洗牙齿的“外面”(唇颊面),而忽视刷洗牙齿的“里面”(舌面)和咬合面。而舌面最易形成牙垢和牙结石,从而引发牙龈炎和牙周炎,目前咬合面龋齿发生率高达70%,因此刷牙时要将牙齿三个牙面刷干净,对保护牙齿健康是十分重要的。每次刷牙三分钟。因为牙齿表面的牙菌斑一旦形成,仅刷洗一两下是不 Each tooth brushing three teeth surface should be brushing teeth cheeks, tongue and occlusal surface of the three teeth. Many people brush their teeth daily only to brush the “outside” of the teeth (lip and buccal surface) while ignoring the “inside” (lingual) and occlusal surfaces of the teeth. The most likely to form the tongue surface of tartar and calculus, which led to gingivitis and periodontitis, the occlusal surface of the incidence of dental caries as high as 70%, so brushing the teeth when the three toothbrush to clean, to protect the health of the teeth is very important of. Brush for three minutes each time. Because dental plaque on the surface of the tooth once formed, only brush one or two is not