Distraction osteogenesis in a severe mandibular deficiency.
Distraction osteogenesis in a severe mandibular deficiency.
复制标题
严重下颌缺乏症中的分散成骨。
DOI：
10.1186/1746-160x-3-7
复制
发表时间：
2007-01-20
影响因子：
3
通讯作者：
Bengi O
中科院分区：
文献类型：
--
作者：
Ortakoglu K;Karacay S;Sencimen M;Akin E;Ozyigit AH;Bengi O
牵张成骨是矫正下颌发育不全的另一种治疗方法。在这个病例报告中，使用多向口外装置进行牵引以逐渐延长患有严重下颌骨发育不全的患者的体和支。患者行双侧口外支体牵张成骨术。7 d潜伏期后，每天2次进行0.5 mm牵张。随后的巩固期为12周。患者的下颌骨被成功拉长。头侧测量结果显示，ANB角从13°减小到6°，覆盖厚度从15 mm减小到4 mm，体长从49 mm增加到67 mm，支长从41 mm增加到43 mm。后气道间隙（PAS）也因下颌骨前移而增加。在立体平版模型评价中，确定了从髁突到阴离子和从阴离子到毒瘤的距离增加。通过支体牵张成骨，获得了令人满意的美学和功能效果。
Distraction osteogenesis is an alternative treatment method for the correction of mandibular hypoplasia. In this case report, distraction with a multidirectional extraoral device was performed to gradually lengthen the corpus and ramus of a patient who had a severe hypoplastic mandible. The patient underwent bilateral extraoral ramus and corpus distraction osteogenesis. After seven days of latency period, distraction was performed 0.5 mm twice a day. Subsequent consolidation period was 12 weeks. The patient's mandible was elongated successfully. Cephalometric analysis revealed that ANB angle decreased from 13° to 6°, overjet of 15 mm decreased to 4 mm, corpus length increased from 49 mm to 67 mm, and ramus length increased from 41 mm to 43 mm. Posterior airway space (PAS) also increased due to advancement of the mandible. In stereolithographic model evaluation it was determined that the distances from condylion to gonion and from gonion to pogonion increased. Satisfactory results from both aesthetic and functional standpoints were obtained by distraction osteogenesis of the ramus and corpus.