Ahlgren Fredrik, Størksen Kjell, Tornes Knut
Department of Oral and Maxillofacial Surgery, Haukeland University Hospital and Institute of Odontology, Oral and Maxillofacial Surgery, University of Bergen, Bergen, Norway.
Int J Oral Maxillofac Implants. 2006 May-Jun;21(3):421-5.
The purpose of this study was to evaluate indications, surgical problems, complications, and treatment outcomes related to the placement of zygomatic implants. A second aim was to determine any prosthetic difficulties and complications.
Twenty-five zygomatic implants were placed in 13 patients between April 1999 and December 2001. The patient age range was between 49 and 73 years, with a mean age of 59 years. All patients showed severe resorption of alveolar bone in the maxilla. All but 2 patients were smokers. Two patients had a history of cleft palate surgery, and 2 patients were known to be bruxers. Standard recommended surgical protocol was followed, and treatment was performed under general anesthesia. After abutment surgery, 9 patients received bar-retained overdentures, and 4 patients received fixed prostheses.
No implants were lost, and few surgical complications were experienced. The follow-up period was 11 to 49 months.
Although surgical problems precipitated by difficult anatomy in cleft patients and a patient with reduced interarch access were experienced, the results were favorable. Fabricating a functional and esthetic prosthesis can be a challenge.
Zygomatic implants provide a treatment option for patients with severe maxillary resorption, defects, or situations where previous implant treatment has failed. In this experience, treatment with zygomatic implants was a predictable method with few complications, even in a group of patients that would not be considered ideal for implant treatment.
本研究旨在评估与颧骨种植体植入相关的适应证、手术问题、并发症及治疗效果。第二个目的是确定任何修复方面的困难和并发症。
1999年4月至2001年12月期间，对13例患者植入了25颗颧骨种植体。患者年龄在49岁至73岁之间，平均年龄为59岁。所有患者均表现出上颌牙槽骨的严重吸收。除2例患者外，其余均为吸烟者。2例患者有腭裂手术史，2例患者有磨牙症。遵循标准推荐的手术方案，在全身麻醉下进行治疗。基台手术后，9例患者接受杆卡式覆盖义齿修复，4例患者接受固定修复。
无种植体丢失，手术并发症较少。随访期为11至49个月。
尽管在腭裂患者和牙弓间隙减小的患者中，因解剖结构困难引发了手术问题，但结果良好。制作功能性和美观性的修复体可能具有挑战性。
颧骨种植体为严重上颌骨吸收、缺损或既往种植治疗失败的患者提供了一种治疗选择。在本研究经验中，即使在一组不被认为是种植治疗理想对象的患者中，颧骨种植体治疗也是一种可预测且并发症较少的方法。
