下颌骨萎缩畸形或下颌骨体大部或全部缺失经植骨治疗后,常因牙槽嵴低平,义齿无法固位,影响咀嚼功能。Bodine 1974年报告下颌骨膜下种植义齿。Small 1975～1979年三次报道下颌骨钉板成形术以解决下颌骨萎缩畸形的固定桩问题。我科自1979年8月至1981年6月采用自己设计制造的鞍式钛桩和钛支架联结式钛桩施行下颌体钛桩成形术9例,效果较好,报道如下: Mandibular atrophy or mandibular body deformity or most or all of the missing after bone graft treatment, often low alveolar ridge, the denture can not be retained, affecting masticatory function. Bodine's 1974 report of submandibular implant dentures. Small From 1975 to 1979, three reports of mandibular plate nailing to solve the problem of fixed pile of mandibular atrophy. Our department from August 1979 to June 1981 using its own design and manufacture of titanium and titanium stent-titanium coupling post-implant titanium pile in 9 cases of mandibular body, the effect is better, are reported as follows: