Lindh T, Bäck T, Nyström E, Gunne J
Department of Prosthetic Dentistry, Faculty of Medicine and Odontology, Umeå University, SE-901 85 Umeå, Sweden.
Clin Oral Implants Res. 2001 Oct;12(5):441-9. doi: 10.1034/j.1600-0501.2001.120503.x.
When implants are used for restoration of a jaw with a residual dentition, the possibility of combining implants with natural abutments may be considered. In a longitudinal comparative study, 26 patients (15 women & 11 men, age 49-84 years) with residual anterior dentitions were treated with two different designs of fixed partial dentures bilaterally in the posterior maxilla. On one side the reconstruction was supported by implants only, while on the contralateral side an implant and a tooth in combination were used. The patients were followed at intervals of 3, 6, 12 and 24 months after loading of the implants. 95 implants were placed, of which 11 non-loaded. A total of 10 implants failed, 7 prior to loading and three within the first three months of service (88.0+/-SE 6.7% cumulative survival for tested implants after two years' follow-up). There was no difference in failure rate for the implants in the two different prosthesis designs. The total mean loss of marginal bone height close to the implants was within acceptable standards, but was more pronounced at the implants not combined with teeth. The results indicate a correlation between the prosthesis design and the loss of marginal bone.
当使用种植体修复有剩余牙列的颌骨时，可以考虑将种植体与天然基牙相结合的可能性。在一项纵向比较研究中，26例（15名女性和11名男性，年龄49 - 84岁）有剩余前牙列的患者在上颌后部双侧接受了两种不同设计的固定局部义齿治疗。一侧的修复仅由种植体支持，而对侧则使用种植体和牙齿相结合的方式。在种植体加载后，每隔3、6、12和24个月对患者进行随访。共植入95枚种植体，其中11枚未加载。共有10枚种植体失败，7枚在加载前失败，3枚在使用的前三个月内失败（两年随访后，测试种植体的累积存活率为88.0±标准误6.7%）。两种不同修复体设计中的种植体失败率没有差异。靠近种植体的边缘骨高度的总体平均丧失在可接受标准范围内，但在未与牙齿结合的种植体处更为明显。结果表明修复体设计与边缘骨丧失之间存在相关性。
