Early implant placement with simultaneous guided bone regeneration following single-tooth extraction in the esthetic zone:: A cross-sectional, retrospective study in 45 subjects with a 2- to 4-year follow-up
Early implant placement with simultaneous guided bone regeneration following single-tooth extraction in the esthetic zone:: A cross-sectional, retrospective study in 45 subjects with a 2- to 4-year follow-up
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DOI：
10.1902/jop.2008.080071
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发表时间：
2008-09-01
影响因子：
4.3
通讯作者：
Belser, Urs C.
中科院分区：
文献类型：
--
作者：
Buser, Daniel;Bornstein, Michael M.;Belser, Urs C.
背景：早期种植体植入的概念是上颌前部单个牙齿拔除后的一种治疗选择。在软组织愈合4至8周后进行种植体植入。种植体放置在一个正确的三维位置相结合，同时引导骨再生程序，以重建美学面部硬，软组织轮廓。方法：在这项回顾性，横断面研究，45例患者的种植体承载的单冠功能为2至4年，被召回检查。临床和放射学参数，常规使用的种植体studies.Results：所有45种植体临床成功，根据严格的成功标准进行了评估。种植体表现出强直稳定性，没有种植体周围感染的迹象。种植体周围软组织临床健康，表现为低平均斑块（0.42）和龈沟出血指数（0.51）值。所有种植体肩部的明显粘膜下位置证实，没有种植体显示面部粘膜凹陷。在面部方面，从粘膜边缘到种植体肩部的平均距离为-1.93 mm。根尖周X线片显示稳定的种植体周围骨水平，种植体肩部和第一个骨-种植体接触之间的平均距离为2.18 mm。结论：这项回顾性研究证明了所有45个种植体检查的成功治疗结果。2 - 4年的中期随访也表明，采用这种治疗理念，粘膜退缩的风险较低。需要前瞻性临床研究来证实这些令人鼓舞的结果。
Background: The concept of early implant placement is a treatment option in postextraction sites of single teeth in the anterior maxilla. Implant placement is performed after a soft tissue healing period of 4 to 8 weeks. Implant placement in a correct three-dimensional position is combined with a simultaneous guided bone regeneration procedure to rebuild esthetic facial hard and soft tissue contours.Methods: In this retrospective, cross-sectional study, 45 patients with an implant-borne single crown in function for 2 to 4 years were recalled for examination. Clinical and radiologic parameters, routinely used in implant studies, were assessed.Results: All 45 implants were clinically successful according to strict success criteria. The implants demonstrated ankylotic stability without signs ofa peri-implant infection. The peri-implant soft tissues were clinically healthy as indicated by low mean plaque (0.42) and sulcus bleeding index (0.51) values. None of the implants revealed a mucosal recession on the facial aspect as confirmed by a clearly submucosal position of all implant shoulders. The mean distance from the mucosal margin to the implant shoulder was -1.93 mm on the facial aspect. The periapical radiographs showed stable peri-implant bone levels, with a mean distance between the implant shoulder and the first bone-implant contact of 2.18 mm.Conclusions: This retrospective study demonstrated successful treatment outcomes for all 45 implants examined. The mid-term follow-up of 2 to 4 years also showed that the risk for mucosal recession was low with this treatment concept. Prospective clinical studies are required to confirm these encouraging results.