Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University, Tokyo, Japan.
Int J Oral Maxillofac Surg. 2011 Jan;40(1):113-7. doi: 10.1016/j.ijom.2010.07.007. Epub 2010 Aug 21.
This clinical report describes the successful management of a patient who underwent extensive resection of a maxillary cancer, by introduction of a maxillary obturator prosthesis using zygoma implants. The patient was a 57-year-old man with cancer of the upper anterior gingiva. The maxillary bone in the affected region had been extensively excised by radical surgery. Owing to loss of teeth retaining the denture, the existing prosthesis was unstable, and the patient experienced severe speech and mastication disorders. Four zygoma implants (two on each side), and two conventional dental implants (one each at both maxillary tuberosities) were used as denture retainers. The obturator prosthesis was stabilized by the implants, and the patient's oral function improved. High-level compatibility between the implant and surrounding tissue was obtained by mucosal regeneration around the implant. The results suggest that the combination of zygoma and conventional dental implants improves postoperative oral function by facilitating retention of the obturator prostheses.
本临床报告描述了一位上颌癌患者的成功治疗案例。该患者通过颧骨种植体引入上颌赝复体，进行了广泛的上颌骨切除。患者为 57 岁男性，患有上前牙龈癌。受影响区域的上颌骨已被根治性手术广泛切除。由于义齿固位的牙齿缺失，现有的义齿不稳定，患者出现严重的言语和咀嚼障碍。使用四颗颧骨种植体（每侧两颗）和两颗常规牙种植体（每侧上颌结节各一颗）作为义齿固位体。固位体通过种植体稳定，患者的口腔功能得到改善。通过在种植体周围进行黏膜再生，获得了种植体与周围组织的高度相容性。结果表明，颧骨和常规牙种植体的结合通过促进赝复体的固位，改善了术后的口腔功能。
