下颌后牙区SLActive种植体3周早期负荷修复1年随访的临床观察

目的:探讨SLActive种植体3周早期负荷修复的临床可行性。方法:32名患者40枚下颌后牙区种植体行3周早期负荷修复,种植术中、术后1、3、12周、1年应用共振频率分析仪测量种植体稳定性,定量分析种植体稳定性的变化;种植术后1周、3周、12周、1年时拍射平行投照根尖片,测量评估种植体边缘骨水平的变化。结果:3周负荷的种植体种植术后3周与12周及1年,ISQ值存在明显统计学差异(P<0.01),术后1年边缘骨吸收(0.5±0.21) mm,种植体成功率100%。结论:SLActive种植体3周早期负荷修复方案在下颌后牙区可以获得可预期的临床效果。

Early Loading at the 3rd Week of SLActive Implant in the Posterior Mandible: 1-Year Results of a Clinical Observation.

Objective: To investigate the feasibility of SLActive implants which were functionally loaded after 3 weeks of healing. Methods: 32 partially edentulous patients had a total of 40 implants inserted in the posterior mandibles and underwent undisturbed healing for 3 weeks. The implants were loaded with provisional crowns in the 3rd week. Resonance frequency analysis was assessed by using Osstell MentorTM in the procedure (baseline) and after 1, 3, 12 weeks and 1 year of implants placement. The X-ray cone paralleling radiographs were obtained at 1,3, 12 week and 1 year as well. Results: Statistic analysis revealed that there was a significant difference (P<0.01) between the 3-week and 12-week ISQ values of the implants loaded at the 3rd week, as well as 3-week and 1-year values. The marginal bone was absorbed 0.5±0.21mm within a year after the implants inserted. All the implants were stable without peri-implantitis. The success rate was 100%. Conclusion: The study of using 3-week early loading protocol demonstrates that SLActive implants inserted in posterior mandible may achieve prospective outcomes over a period of 1 year.