牙齿在上下颌骨的齿槽突起上各有一列，称为齿列。由于齿列一般呈左右对称的曲线。故将此曲线称为齿弓（dental arch），但这是指连结门齿及犬齿齿尖以及大、小臼齿颊侧齿尖的曲线
在你家人当有没有患有类似的齿列不正的？
Does anyone in your family have a similar disarrangement of the teeth?
很抱歉让你们来阅读我糟糕的齿列矫正日记。
I am sorry for letting you read my terrible orthodontic treatment.
摘要上颚阻生犬齿是混合齿列期常遇见的问题。
An impacted maxillary canine is a frequently encountered clinical problem in the mixed dentition.
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