ERA全口覆盖义齿修复保留残根的半口牙列缺失患者的临床评估

目的：研究ERA附着体全口覆盖义齿的临床修复效果。方法：35例保留残根的半口牙列缺失患者，采用ERA全口覆盖义齿修复。结果：经过6个月至1年3个月时间随访，患者表示对该义齿的固位性能、咀嚼效能、舒适程度，以及装卸的方便程度感到满意。有1例出现ERA阳性部件老化，进行了即刻更换，其余无失败病例。结论：采用ERA全口覆盖义齿修复保留残根的半口牙列缺失病例，临床观察患者较满意，提示该方法是一种方便、可靠的修复方式。但ERA附着体的阳性部件需要根据老化情况，随时进行更换。

Retrospective investigation on clinical application of ERA attachment retained complete overdenture

Objective: To evaluate the effect of clinical application of ERA retained complete overdenture. Methods: 35 half-edentulous patients with residual roots were restored with ERA retained overdentures. Results: After the follow up of 6 to 15 months, all patients were satisfied with the dentures in retention, mastication efficiency, degree of comfort and convenience. No failure case was found except 1 attachment aging before changing. Conclusion: Half-edentulous patients with residual roots were satisfied with ERA overdentures, which indicated that ERA overdentures was an reliable and convenient restoration method. However, the positive part of the attachment should be changed once aging appears.