When it came to asking Weiwei to brush his teeth, his mother put a lot of thought into it. Because Weiwei\’s parents both had tooth decay and lost several teeth at a young age, his mother was particularly worried about Weiwei\’s teeth. When Weiwei had just grown 8 teeth, his mother couldn\’t wait to let Weiwei brush his teeth. When Weiwei first saw the cute cartoon toothbrush, he was still a little interested and consciously put the toothbrush into his mouth. But when mom is teething…