Lopo Barros José Henrique, Oliveira Murilo Navarro de, Cardoso Igor Oliveiros, Oliveira Guilherme José Pimentel Lopes de, Prado Célio Jesus do, Neves Flávio Domingues Das
Department of Occlusion, Fixed Prosthodontics and Dental Materials, School of Dentistry, Federal University of Uberlandia, Uberlandia 38405-320, MG, Brazil.
School of Dentistry, University Center-UNIFAE, São João da Boa Vista 13870-377, SP, Brazil.
Healthcare (Basel). 2023 Sep 6;11(18):2472. doi: 10.3390/healthcare11182472.
This study presented a rehabilitation option for malpositioned implants; this involved obtaining their position and inclination through intraoral scanning, and producing a customized abutment with CAD/CAM technology. The patient in this case report presented a root fracture in tooth 21 and was subjected to extraction, implant installation, and immediate provisional prosthesis. The implant was installed with a distal inclination due to anatomical limitations. After osseointegration, an intraoral scanning transfer provided a digital model (file extension .stl), which reproduced the implant's position and inclination. Then, the file was sent so that a customized abutment (CAD/CAM) could be manufactured, promoting the final rehabilitation of the case; this allowed for good hygiene, load distribution in the dynamic interocclusal relationship, and favorable esthetics, whereas many would otherwise recommend implant removal. The result presented lower costs, a shorter time frame, and a lower morbidity for the patient.
本研究提出了一种针对位置不当种植体的修复方案；该方案包括通过口内扫描获取种植体的位置和倾斜度，并利用CAD/CAM技术制作定制基台。本病例报告中的患者21号牙发生根折，接受了拔牙、种植体植入及即刻临时修复体治疗。由于解剖学限制，种植体植入时呈远中倾斜。骨整合后，口内扫描转移提供了一个数字模型（文件扩展名.stl），该模型再现了种植体的位置和倾斜度。然后，将该文件发送出去，以便制造定制基台（CAD/CAM），推动该病例的最终修复；这有利于保持良好的口腔卫生、在动态咬合关系中实现负荷分布以及获得良好的美学效果，而在其他情况下，许多人可能会建议拔除种植体。结果显示，该方案成本更低、时间更短，且患者的发病率更低。
