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吉林省读者王桂枝来信问:我已60多岁,牙齿的状况越来越不好了。我想注意牙齿的保养。请问:老年人应怎样选用牙膏、牙刷?专家:首先,老年人用的保健牙刷规格应为:刷头长(最前毛束孔与最后毛束孔的距离)不超过32毫米,宽为10~12毫米,毛束不超过3排,主束为10~11厘米,毛束孔距离不少于1.5毫米。刷毛直径不超
Letter from Wang Guizhi, Recipient of Jilin Province, Q: I am over 60 years old and my teeth are getting worse and worse. I want to pay attention to the maintenance of teeth. Excuse me: the elderly should be how to use toothpaste, toothbrush? Expert: First of all, the elderly health care toothbrush specifications should be: brush head length (the distance between the front hair bundles and the last hair bundles) no more than 32 mm wide and 10 ~ 12 mm, no more than 3 rows of hair bundles, the main bundle of 10 to 11 cm, hair bundle distance of not less than 1.5 mm. The bristles do not exceed the diameter