Sir John Walsh Research Institute, School of Dentistry, University of Otago, Dunedin, New Zealand Ras Al Khaimah Dental Center, Ministry of Health, United Arab Emirates.
Gerodontology. 2012 Sep;29(3):239-42. doi: 10.1111/j.1741-2358.2012.00628.x.
To report on the long-term survival and prosthodontic maintenance of two edentulous adults with mandibular overdentures supported by hydroxyapatite (HA)-coated implants.
Mandibular implant overdentures are a successful treatment option with positive impact on the quality of life of elderly edentulous adults. Long-term survival of the implants requires continued rigorous prosthodontic maintenance.
Two elderly edentulous adults with mandibular overdentures supported by 2 HA-coated implants were presented for prosthodontic rehabilitation after 22 years of placement. The implants were osseo-integrated and surviving at presentation based on accepted criteria. The mandibular implant overdentures suffered recurrent loss of retention and stability. Prosthodontic treatment involving the replacement of defective attachment systems and construction of new sets of mandibular implant overdentures opposing complete maxillary dentures is presented.
The long-term survival of mandibular 2-implant overdentures requires continued prosthodontic maintenance. A conservative approach in the rehabilitation of two older edentulous adults with mandibular 2-implant overdentures was described including proper selection of attachment systems.
报告 2 例下颌无牙颌患者采用羟基磷灰石(HA)涂层种植体支持的覆盖义齿的长期生存和修复体维护情况。
下颌种植体覆盖义齿是一种成功的治疗选择,对老年无牙颌患者的生活质量有积极影响。种植体的长期生存需要持续严格的修复体维护。
2 例下颌无牙颌患者采用 2 枚 HA 涂层种植体支持的覆盖义齿,在植入 22 年后因修复体问题就诊。根据公认的标准,这些种植体在检查时已骨整合并存活。下颌种植体覆盖义齿反复出现固位和稳定性丧失。介绍了涉及更换有缺陷的附着体系统和制作新的下颌种植体覆盖义齿以对抗上颌全口义齿的修复治疗。
下颌 2 枚种植体覆盖义齿的长期生存需要持续的修复体维护。本文描述了对 2 例年龄较大的下颌 2 枚种植体覆盖义齿无牙颌患者的保守修复方法,包括适当选择附着体系统。