Wolfaardt J F, Wilkes G H, Parel S M, Tjellström A
Faculty of Dentistry, University of Alberta, Edmonton, Canada.
Int J Oral Maxillofac Implants. 1993;8(2):197-204.
A survey was undertaken to determine the number of centers in Canada with an active involvement in extraoral osseointegration. It was found that six centers had placed 222 implants in 91 patients in Canada. The individual implant success rates for the Canadian experience were compared with the published Swedish and United States' experience. The Canadian experience is combined with the Swedish and United States' experience to provide retrospective multinational multicenter data. The data given should be viewed as providing trends only and not as definitive expectations of predictable success rates. The success rates are considered likely to change with time as the number of patients treated increases and the duration of follow-up is extended. The mastoid region in nonradiated patients is considered to provide a high degree of predictable individual implant success. The success rates in radiated patients yield far lower success rates, which vary with anatomic location. The criteria for success in using craniofacial implants need to be defined and should reflect the differences between extraoral and intraoral implants.
开展了一项调查，以确定加拿大积极参与口外骨整合的中心数量。结果发现，加拿大有六个中心为91名患者植入了222颗种植体。将加拿大的个体种植体成功率与已发表的瑞典和美国的经验进行了比较。加拿大的经验与瑞典和美国的经验相结合，以提供回顾性的跨国多中心数据。所提供的数据应仅被视为提供趋势，而不是对可预测成功率的确切期望。随着治疗患者数量的增加和随访时间的延长，成功率可能会随时间而变化。非放疗患者的乳突区域被认为能提供高度可预测的个体种植体成功率。放疗患者的成功率要低得多，且因解剖位置而异。使用颅面种植体的成功标准需要明确，并且应反映口外种植体和口内种植体之间的差异。
