Zanettini Leonardo Matos Santolim, Fritscher Guilherme Genehr, De Marco Ricardo Giacomini, de Oliveira Andriola Fernando, Pagnoncelli Rogério Miranda
*Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) †Department of Oral and Maxillofacial Surgery and Traumatology, School of Dentistry, PUCRS, Porto Alegre, Brazil.
J Craniofac Surg. 2017 Mar;28(2):492-495. doi: 10.1097/SCS.0000000000003349.
Maxillary advancement by Le Fort I osteotomy has become the standard procedure to restore function and facial esthetics, correct skeletal and occlusal discrepancies, and treat obstructive sleep apnea in patients with facial deformities. Incomplete ossification between the bone segments at the jaw osteotomy site has proven to be a major problem in these patients. There are several studies in the literature that address orthognathic surgery, but only a limited number that discuss the use of graft materials in maxillary osteotomy. Bone grafts were introduced in recent decades in order to promote and improve bone union and prevent the formation of gaps. This study will discuss the results obtained using bone substitutes in orthognathic surgery for maxillary advancement and maxillary repositioning with Le Fort I osteotomy, in a clinical report and a literature review, covering the main indications and specifying the type of material used and the stability of the surgical procedure postoperatively.
通过勒福Ⅰ型截骨术进行上颌骨前移已成为恢复功能和面部美观、纠正骨骼和咬合差异以及治疗面部畸形患者阻塞性睡眠呼吸暂停的标准手术。颌骨截骨部位骨段之间的不完全骨化已被证明是这些患者的一个主要问题。文献中有几项关于正颌外科手术的研究，但只有少数研究讨论了上颌骨截骨术中移植材料的使用。近几十年来引入了骨移植以促进和改善骨愈合并防止间隙形成。本临床报告和文献综述将讨论在正颌外科手术中使用骨替代物进行上颌骨前移和通过勒福Ⅰ型截骨术进行上颌骨重新定位所获得的结果，涵盖主要适应症并明确所用材料的类型以及术后手术过程的稳定性。
