Davó Rubén, Malevez Chantal, Pons Olivia
Department of Implantology and Maxillofacial Surgery, Meimar International Hospital, Alicante, Spain.
Eur J Oral Implantol. 2013 Spring;6(1):39-47.
This prospective study was designed to assess the long-term outcome of immediately loaded zygomatic implants placed in atrophic maxillae.
Forty-two consecutively treated patients received 81 zygomatic implants and 140 conventional implants for oral rehabilitation and were followed for 5 years. Complete arch rehabilitation was accomplished in 37 patients and partial arch rehabilitation in 5 (one zygomatic implant in combination with two conventional implants). Outcome measures were prosthetic and implant failures, and complications.
Twelve zygomatic and 22 conventional implants in 6 patients were not reviewed as patients were lost to follow-up. One zygomatic implant was removed at the 3-year follow-up visit because of lack of osseointegration and disturbances around the zygomatic region. The success rate of zygomatic implants was 98.5% (68/69). Six conventional implants were lost, with a success rate of 94.9% (112/118). One of the definitive prostheses was changed after 4 years of follow-up. Six complications occurred during the entire follow-up period.
The 5-year prognosis was found to be good for immediately loaded zygomatic implants together with conventional implants in severely resorbed maxillae.
本前瞻性研究旨在评估即刻负重颧骨种植体植入萎缩性上颌骨的长期效果。
42例连续接受治疗的患者接受了81枚颧骨种植体和140枚传统种植体用于口腔修复，并随访5年。37例患者完成全牙弓修复，5例患者完成部分牙弓修复（1枚颧骨种植体联合2枚传统种植体）。观察指标为修复体和种植体失败情况以及并发症。
6例患者中的12枚颧骨种植体和22枚传统种植体因患者失访未纳入评估。1枚颧骨种植体在3年随访时因骨结合失败及颧骨区域出现病变而被取出。颧骨种植体的成功率为98.5%（68/69）。6枚传统种植体脱落，成功率为94.9%（112/118）。1件最终修复体在随访4年后更换。整个随访期间发生6例并发症。
对于严重吸收的上颌骨，即刻负重颧骨种植体联合传统种植体的5年预后良好。
