Department of Implantology, São Leopoldo Mandic Institute and Research Center, Campinas, SP, Brazil.
Int J Oral Maxillofac Surg. 2012 Sep;41(9):1072-6. doi: 10.1016/j.ijom.2012.05.029. Epub 2012 Jul 9.
The aim of this study was to evaluate the long-term success rate of immediate occlusal loading of extrasinus zygomatic implants after an 8-year follow-up. From 62 patients who needed implant treatment in 2003, 25 patients who presented with maxillary atrophy met the inclusion criteria and agreed to participate in the study. All patients received fixed dentures under immediate occlusal loading supported by extrasinus zygomatic implants associated with anterior standard implants. No bone grafting procedures were performed. During the 8-year follow-up period, 21 patients underwent clinical evaluation and radiographic examinations every 6 months. This study conforms to the STROBE guidelines regarding prospective cohort studies. 40 extrasinus zygomatic and 74 anterior standard implants were evaluated. All patients were clinically free of signs and symptoms of sinus disturbance at all follow-up appointments. After 8 years, the success rates of extrasinus zygomatic implants, standard anterior implants and definitive prostheses were 97.5%, 95.9% and 95.2%, respectively. Within the limits of this study, immediate occlusal loading of extrasinus zygomatic implants presents a predictable treatment option for the atrophic maxilla.
本研究旨在评估上颌窦外颧骨种植体在 8 年随访后的长期成功率。2003 年，62 名需要接受种植治疗的患者中，25 名上颌骨萎缩的患者符合纳入标准并同意参与研究。所有患者均接受了固定义齿修复，这些义齿由上颌窦外颧骨种植体和前标准种植体共同支撑，并立即进行了咬合加载。未进行任何骨移植手术。在 8 年的随访期间，21 名患者每 6 个月接受一次临床评估和影像学检查。本研究符合关于前瞻性队列研究的 STROBE 指南。评估了 40 个上颌窦外颧骨种植体和 74 个前标准种植体。所有患者在所有随访期间均无窦腔紊乱的迹象和症状。8 年后，上颌窦外颧骨种植体、标准前牙种植体和最终修复体的成功率分别为 97.5%、95.9%和 95.2%。在本研究的范围内，上颌窦外颧骨种植体的即刻咬合加载为上颌骨萎缩提供了一种可预测的治疗选择。
