Bauru School of Dentistry - University of São Paulo, Bauru.
UNIFAGOC Institute and Research Center, Uba.
J Craniofac Surg. 2022;33(5):e488-e491. doi: 10.1097/SCS.0000000000008411. Epub 2021 Dec 13.
The aim of this case series was to evaluate the long-term success rate of immediate occlusal loading of extrasinus zygomatic dental implants after a 3-year follow-up. The sample consisted of 31 patients (mean age of 64 years) with atrophic maxillae rehabilitated with 1 to 4 extrasinus zygomatic implants, placed unilaterally or bilaterally. All the patients received complete implant-supported dental prostheses with immediate loading by associating zygomatic implants with conventional implants. None of the procedures were associated with bone grafts. During the 3-year period of follow-up in the present study, all the patients attended clinical sessions and underwent radiographic exams every 6 months. In total 55 zygomatic and 69 conventional implants were placed, where 1 zygomatic and 2 conventional implants were lost, representing success rates of 98.18% and 97.20%, respectively. None of the studied patients had signs of sinusitis or changes in the maxillary sinuses. All the patients showed occlusal contact on natural antagonist teeth or implant-supported dental prostheses. Therefore, it was concluded that the use of exteriorized zygomatic implants with immediate loading represented a feasible option with high success rates for the treatment of atrophic maxilla.
本病例系列研究旨在评估在 3 年随访后即刻负载额外颧骨牙槽嵴种植体的长期成功率。样本包括 31 名患者（平均年龄 64 岁），上颌骨萎缩，采用单侧或双侧植入 1 至 4 个额外颧骨种植体进行修复。所有患者均接受了完整的种植体支持式义齿，通过将颧骨种植体与常规种植体联合使用实现即刻负载。所有手术均未涉及骨移植。在本研究的 3 年随访期间，所有患者均定期参加临床就诊，并每 6 个月进行一次影像学检查。总共植入了 55 个颧骨种植体和 69 个常规种植体，其中 1 个颧骨种植体和 2 个常规种植体脱落，成功率分别为 98.18%和 97.20%。没有研究患者出现鼻窦炎或上颌窦变化的迹象。所有患者的天然对颌牙或种植体支持式义齿都存在咬合接触。因此，结论是使用即刻负载的外置颧骨种植体是治疗上颌骨萎缩的一种可行选择，成功率较高。
