Nilius Manfred, Nilius Minou Hélène, Mueller Charlotte, Weiland Bernhard, Haim Dominik, Krahe Anna, Lauer Guenter
Niliusklinik, Londoner Bogen 6, D-44269 Dortmund, Germany.
Department of Oral and Maxillofacial Surgery, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Fetscherstr 74, D-01307 Dresden, Germany.
Case Rep Dent. 2022 Mar 22;2022:6943930. doi: 10.1155/2022/6943930. eCollection 2022.
In cases of severe atrophic maxilla or maxillary involution, augmentation is necessary for implant-supported prosthetics. Using bone grafts is a standard procedure, and using customized allogeneic bone blocks may be a predictable alternative before dental implantation. . This case study shows the digital workflow, including a preimplantological augmentation by a customized allogeneic block, followed by soft tissue optimization and template-based dental implantation, after six months of healing. It is part of a three-year follow-up study on the resorption rate of allogeneic bone blocks. . Allogeneic bone augmentation is an alternative treatment option to autologous bone grafts. It allows predictable advanced backward planning (ABP) even in the maxillary esthetic zone. Diameter-reduced implants show long-term stability of a minimum of three years after loading and excellent results of prosthetic fixtures.
Prefabricated customized allogeneic blocks for augmentation may increase the fitting accuracy of the graft, decrease morbidity, and reduce the operation time in esthetic maxillary rehabilitation.
在严重萎缩性上颌骨或上颌骨吸收的病例中,种植支持式修复体需要进行骨增量。使用骨移植是一种标准程序,在牙种植前使用定制的同种异体骨块可能是一种可预测的替代方法。本病例研究展示了数字化工作流程,包括在愈合六个月后,通过定制的同种异体骨块进行种植前骨增量,随后进行软组织优化和基于模板的牙种植。这是一项关于同种异体骨块吸收速率的三年随访研究的一部分。同种异体骨增量是自体骨移植的一种替代治疗选择。即使在上颌美学区域,它也允许进行可预测的先进向后规划(ABP)。直径减小的种植体在加载后显示出至少三年的长期稳定性以及修复固定装置的优异效果。
预制的定制同种异体骨块用于骨增量可能会提高骨块的贴合精度,降低发病率,并减少上颌美学修复中的手术时间。