Qu Xing Zhou, Wang Ming Yi, Ong Hui Shan, Zhang Chen Ping
Shanghai Ninth People's Hospital, Affiliated to Shanghai Jiao Tong University, Department of Oral Maxillofacial-Head & Neck Oncology, Shanghai, China.
Clinics (Sao Paulo). 2016 Oct 1;71(10):575-579. doi: 10.6061/clinics/2016(10)04.
: This study aimed to evaluate the stability of prostheses supported by zygoma implants and remaining teeth for subjects who had undergone hemi-maxillectomy.
: Ten patients were included in the study. Oral rehabilitation was performed using a temporary prosthesis that was supported by remaining teeth for the first three months. Then, a zygoma implant was placed to provide support for a final prosthesis in addition to the remaining teeth. Each prosthesis was tailor-made according to biomechanical three-dimensional finite element analysis results. The patients were assessed using the prosthesis functioning scale of the Memorial Sloan-Kettering Cancer Center. In addition, retention and bite force were recorded for both the temporary prosthesis and the final prosthesis.
: The mean bite force of the prosthetic first molar was increased to 69.2 N. The mean retentive force increased to 13.5 N after zygoma implant insertion. The bite force on the prosthetic first molar was improved to 229.3 N.
: Bite force increased significantly with the support of a zygoma implant. The use of zygoma implants in the restoration of maxillary defects improved functional outcome and patient satisfaction.
本研究旨在评估接受半侧上颌骨切除术的患者使用颧骨种植体和余留牙支持的假体的稳定性。
本研究纳入10例患者。在最初的三个月使用由余留牙支持的临时假体进行口腔修复。然后，植入颧骨种植体，除余留牙外，为最终假体提供支持。每个假体均根据生物力学三维有限元分析结果量身定制。使用纪念斯隆凯特琳癌症中心的假体功能量表对患者进行评估。此外，记录临时假体和最终假体的固位力和咬合力。
修复第一磨牙的平均咬合力增加到69.2N。植入颧骨种植体后，平均固位力增加到13.5N。修复第一磨牙的咬合力提高到229.3N。
在颧骨种植体的支持下，咬合力显著增加。颧骨种植体在上颌骨缺损修复中的应用改善了功能结局和患者满意度。
