Steflik D E, Koth D L, Robinson F G, McKinney R V, Davis B C, Morris C F, Davis Q B
Department of Oral Pathology, Medical College of Georgia, School of Dentistry, Augusta 30912-0200, USA.
J Oral Implantol. 1995;21(1):8-18.
This study conducted a longitudinal prospective clinical study of the single-crystal sapphire (Al2O3) cylindrical screw-shaped endosteal dental implant, and attempted to establish clinical parameters to evaluate implant success or failure. Twenty-eight mandibular implants (17 patients) were placed. After six weeks' healing, 23 implants in 15 patients served as distal abutments for fixed prostheses (baseline). Implants were evaluated for bleeding index, crevicular fluid volume index, plaque accumulation index, radiographic index, mobility index, and patient comfort. Any implant failing in three of these criteria or implants removed were judged as failures. After 10 years, of the 21 baseline implants recalled (two implants were lost to recall), 17 were fully functional, for an 81% success rate. The use of qualitative and quantitative clinical evaluation parameters as utilized in this study appears to be important and useful in assessments of the clinical serviceability of dental implants. These parameters can be used in human clinical trials as well as in experimental animal studies.
本研究对单晶蓝宝石（Al2O3）圆柱形螺旋状骨内牙种植体进行了纵向前瞻性临床研究，并试图建立评估种植体成功或失败的临床参数。植入了28颗下颌种植体（17例患者）。六周愈合后，15例患者中的23颗种植体作为固定修复体的远端基牙（基线）。对种植体的出血指数、龈沟液体积指数、菌斑积聚指数、影像学指数、松动度指数和患者舒适度进行评估。在这些标准中有三项不合格的任何种植体或被取出的种植体被判定为失败。10年后，在召回的21颗基线种植体中（有两颗种植体未能召回），17颗功能完好，成功率为81%。本研究中使用的定性和定量临床评估参数在评估牙种植体的临床适用性方面似乎很重要且有用。这些参数可用于人体临床试验以及实验动物研究。
