很多人不知道,你给人留下的第一印象中,最重要的是眼睛,其次是牙齿,然后才是头发,但人们花在头发上的注意力远比牙齿多许多。更有人不把牙齿当回事,从来都是任其自生自灭,或觉得自己的牙齿洁白,绝对没有健康问题。但那些观念,也许就是伤害牙齿的根本原因。用凉水刷牙?错不对哦!刷牙不能用凉水,而最好采用温水(30℃～36℃),长期用凉水刷牙,就会出现牙龈萎缩、牙 Many people do not realize that the most important first impression you leave is the eyes, the teeth, and then the hair, but people are far more distracted than their teeth. Some people do not take their teeth seriously, and never let their own way, or feel their teeth white, there is absolutely no health problems. But those ideas may be the root cause of tooth damage. Brush with cold water? Wrong wrong! Brush teeth can not be cold water, and the best use of warm water (30 ℃ ~ 36 ℃), long-term use of cold water to brush your teeth, there will be gingival recession, teeth