“牙好,胃口就好,身体倍儿棒,吃嘛嘛香。”一句广告语唤起不少人对口腔健康的重视,尤其牙口不好的老人.想要养出一口好牙,正确刷牙很重要,而选对牙刷则是关键的第一步。事实上,成人牙刷并不适合老人的口腔特点。随着年龄增长,老人的牙齿和口腔黏膜会发生增龄性变化,即出现牙 “Good teeth, good appetite, body double children stick, eat Well Well.” An ad slogan evoked many people’s attention to oral health, especially the bad teeth of the elderly. Want to raise a good tooth, correct Brushing teeth is very important, and the election on the toothbrush is the key first step. In fact, adult toothbrushes are not suitable for the elderly’s oral characteristics. With age, the aging of the teeth and oral mucosa will occur age-related changes, that is, teeth