Allen F J
Int J Oral Surg. 1981;10(Suppl 1):260-3.
Fifteen successively presenting cases of dental fragments in the lips were analyzed as to cause, site of injury and relationship to groups of anterior teeth. In each case a lip laceration extended from mucosa to skin. This finding supported the hypothesis that a tooth, having transfixed the affected lip, fractured on emergence from the skin surface on contact with a hard object. Skin wounds were often repaired in general hospitals without detecting the foreign body and prior to seeking a dental opinion.
对15例唇部连续出现牙碎片的病例进行了分析，涉及病因、损伤部位以及与前牙组的关系。每例均有唇裂伤，从黏膜延伸至皮肤。这一发现支持了这样的假设：牙齿穿透受影响的嘴唇后，在与硬物接触从皮肤表面穿出时发生骨折。皮肤伤口常在综合医院进行修复，未发现异物，也未在寻求牙科意见之前进行检查。
