Mommaerts M Y
European Face Centre, Universitair Ziekenhuis Brussel, Brussels, Belgium.
Int J Oral Maxillofac Surg. 2017 Jul;46(7):938-940. doi: 10.1016/j.ijom.2017.02.002. Epub 2017 Mar 1.
Severe bone atrophy jeopardizes the success of endosseous implants. This technical note aims to present the innovative concept of additively manufactured sub-periosteal jaw implants (AMSJIs). Digital datasets of the patient's jaws and wax trial in occlusion are used to segment the bone and dental arches, for the design of a sub-periosteal frame and abutments in the optimal location related to the dental arch and for the design of the suprastructure. The implants and suprastructure are three-dimensionally (3D) printed in titanium alloy. The provisional denture is 3D-printed in polymer. AMSJIs offer an alternative approach for patients with extreme jaw bone atrophy. This report refers to the use of this technique for full maxillary rehabilitation, but partial defects in either jaw and extended post-resection defects may also be approached using the same technique. This customized, prosthesis-driven reverse-engineering approach avoids bone grafting and provides immediate functional restoration with one surgical session.
严重的骨萎缩会危及骨内种植体的成功率。本技术说明旨在介绍增材制造的骨膜下颌骨种植体（AMSJIs）的创新概念。患者颌骨的数字数据集和咬合蜡型用于分割骨骼和牙弓，以设计骨膜下框架和基台，并将其放置在与牙弓相关的最佳位置，同时设计上部结构。种植体和上部结构采用钛合金进行三维（3D）打印。临时义齿采用聚合物进行3D打印。AMSJIs为颌骨极度萎缩的患者提供了一种替代方法。本报告介绍了该技术在全上颌骨修复中的应用，但上下颌骨的部分缺损以及扩大的切除后缺损也可采用相同技术进行处理。这种定制的、假体驱动的逆向工程方法避免了骨移植，并通过一次手术即可实现即时功能恢复。
