别的宝宝都是6个月左右开始冒出白白的小乳牙,可自己家的宝宝已经八九个月了,还丝毫没有长牙的痕迹。宝宝是缺钙吗?需不需要去看医生?焦虑的爸爸妈妈开始了各种担心。别急,先来了解宝宝出牙的规律吧宝宝出生时,口腔内虽然看不到牙齿,但牙胚已经有了,只是没有冒出头而已。多数宝宝在 Other babies are about 6 months began to emerge white baby teeth, but their own baby has been eight or nine months, but also did not trace the teeth. Baby is calcium? Need to see a doctor? Anxious father and mother began a variety of concerns. Do not worry, first to understand the rules of the baby tooth when the baby is born, although the teeth can not see the mouth, but the tooth germ has been, but did not emerge it. Most babies are there