父母都希望孩子有洁白整齐的牙齿。要做到这点,除了要经常注意孩子的营养供应情况和口腔卫生外,还必须注意孩子平时的生活习惯。如有的孩子喜欢咬手指、咬嘴唇、咬笔头,用舌头舐牙齿,用口呼吸,用单侧牙齿咀嚼等。这些坏习惯都会影响幼儿口腔的正常发育,造成牙齿错位和排列不齐。如果孩子有咬舌或用舌头舔前牙的习惯,会阻碍前的的生长,出现迟萌,或者在上下前牙之间造成一个空隙,临床上称为开(牙合),长人后就会开唇露齿。又如儿童因一侧乳牙患龋齿,怕痛,常用另一侧牙齿咀嚼,逐渐养成单侧咀嚼的习惯,这会造成两 Parents want their children to have neat and tidy teeth. To do this, in addition to regular attention to the nutritional status of children and oral hygiene, but also must pay attention to children’s daily habits. If any child likes to bite his finger, biting his lip, biting his head, his tongue with his teeth, mouth breathing, chewing with unilateral teeth. These bad habits will affect the normal development of children’s oral cavity, causing dislocation and misalignment of teeth. If a child has a tongue-bite or tongue-licking anterior teeth habit, it will hinder the growth of the former, late adolescence, or in the upper and lower anterior teeth to create a gap between the clinically known as open (occlusion), the elderly will be Teeth open lips. Another example is the child due to deciduous teeth on one side, afraid of pain, often chewing the other side of the teeth, and gradually develop the habit of unilateral chewing, which will result in two