原文地址http://www.toutiao.com/a6823760460462948868/
宋代竹制牙刷
辽代骨质牙刷
明太祖洪武年间的识字课本已经有牙刷了洪武刊本《对相四言杂字》
美国牙医学会的资料表示，
中国皇帝明孝宗于1498年，
把短硬的猪猔毛插进一支骨制手把上，
制成了一把牙刷。
百度
https://cloud.baidu.com/product/textcensoring 文本审核结果 {"errno":0,"msg":"success","data":{"log_id":8509344713569943399,"result":{"spam":0,"review":[],"reject":[],"pass":[{"score":0.039000000804663,"hit":[],"label":1},{"score":0.014999999664724,"hit":[],"label":2},{"score":0.0040000001899898,"hit":[],"label":3},{"score":0.15619470198676,"hit":[],"label":4},{"score":0.0040000001899898,"hit":[],"label":5},{"score":0.12800000607967,"hit":[],"label":6}]}}}
