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近年来对于下颌骨折线上的牙齿越来越多采用姑息疗法。过去大多数关于骨折线上牙齿的研究,是针对骨折愈合方面,而对于骨折线上的牙齿本身的并发症则注意较少。作者通过对132例下颌骨折线上的185个牙齿的1—3年随访观察,研究骨折线上牙齿的并发症的频率,特点及其与骨折类型的关系。作者按牙齿支持组织受到骨折线波及的程度将下颌骨折分为六型。骨折线通过根尖区的牙齿其尖周破坏最多见,牙槽骨垂直缺损占14％,主要见于骨折线波及牙周膜者。发生此种骨
In recent years, increasing use of palliative treatment of the teeth on the mandibular fracture line. In the past, most of the studies on the teeth on the fracture line focused on fracture healing, while less attention was paid to the complications of teeth on the fracture line itself. The author of 132 cases of mandibular fracture line 185 teeth 1-3 years follow-up observation of the fracture line of dental complications frequency, characteristics and the relationship between fracture types. The authors divided the mandibular fractures into six types by the extent to which the tooth support tissues were affected by the fracture line. Fracture line through the apical area of the tooth tip destruction of the most common, alveolar vertical defects accounted for 14%, mainly seen in the fracture line affected the periodontal ligament. Such bones occur