Deporter Douglas, Ogiso Bunnai, Sohn Dong-Seok, Ruljancich Kevin, Pharoah Michael
Discipline of Periodontics, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada.
J Periodontol. 2008 Jul;79(7):1280-6. doi: 10.1902/jop.2008.070496.
This retrospective multicenter report provides data from a case series of partially edentulous subjects treated with an ultrashort (5-mm-long) sintered porous-surfaced (SPS) dental implant.
The implant used had a tapered truncated cone shape, was 5-mm long, and had a maximal coronal diameter of 5 mm. Twenty-six implants were placed in 20 subjects to replace primarily maxillary and mandibular molar teeth. Submerged primary healing was used. Nine implants were restored with single crowns, one carried a single cantilever, and the remaining 16 implants were part of fixed implant-supported bridges, generally as the most distal abutment.
After functional periods of 1 to 8 years, two maxillary implants failed, giving maxillary and mandibular failure rates of 14.3% and 0%, respectively.
The results of this case series suggest that an SPS, press-fit, tapered dental implant with a length of 5 mm and a maximal coronal diameter of 5 mm should be investigated further as a solution for the management of highly resorbed posterior sites in partial edentulism, particularly in the mandible.
本回顾性多中心报告提供了一系列使用超短（5毫米长）烧结多孔表面（SPS）牙种植体治疗的部分牙列缺失患者的数据。
所使用的种植体呈锥形截顶圆锥形状，长5毫米，最大冠部直径为5毫米。在20名受试者中植入了26颗种植体，主要用于替代上颌和下颌磨牙。采用潜入式一期愈合。9颗种植体用单冠修复，1颗带有单悬臂，其余16颗种植体是固定种植体支持桥的一部分，通常作为最远端基牙。
经过1至8年的功能期后，两颗上颌种植体失败，上颌和下颌的失败率分别为14.3%和0%。
该病例系列结果表明，作为治疗部分牙列缺失中高度吸收的后部区域，特别是下颌骨区域的一种解决方案，长度为5毫米、最大冠部直径为5毫米的SPS、压配式、锥形牙种植体应进一步研究。
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