PDF(Pubmed)
Abstract：
OBJECTIVE: To retrospectively evaluate peri-implant bone loss and health status associated with the long-term use of laser surface-treated implants.
METHODS: For control study, total of 23 titanium ASTM F136 grade 23 implants were placed in the edentulous molar area of the mandible. When the Implant Stability Quotient (ISQ) ≥ 70 and insertion torque value (ITV) ≥ 35-50 Ncm at the insertion site, an immediate provisional restoration was connected to the implant within a week after surgery. The definitive restorations were placed 2 months after surgery for all implants. 13 implants were immediately loaded, while 10 implants were conventionally loaded. For comparative study, Radiographs were taken from third years for and then annually for the subsequent eight years to monitor marginal bone loss.
RESULTS: After eight year of implant installation, the average change in vertical bone loss was 0.009 mm (P < 0.001), while the average change in horizontal bone loss 8 year after implant placement was 0.026 mm (P < 0.001). The mean marginal bone loss was < 0.2 mm on average.
CONCLUSIONS: In this retrospective study, laser-treated implants exhibit a low rate of bone absorption around the implants.
METHODS: For control study, total of 23 titanium ASTM F136 grade 23 implants were placed in the edentulous molar area of the mandible. When the Implant Stability Quotient (ISQ) ≥ 70 and insertion torque value (ITV) ≥ 35-50 Ncm at the insertion site, an immediate provisional restoration was connected to the implant within a week after surgery. The definitive restorations were placed 2 months after surgery for all implants. 13 implants were immediately loaded, while 10 implants were conventionally loaded. For comparative study, Radiographs were taken from third years for and then annually for the subsequent eight years to monitor marginal bone loss.
RESULTS: After eight year of implant installation, the average change in vertical bone loss was 0.009 mm (P < 0.001), while the average change in horizontal bone loss 8 year after implant placement was 0.026 mm (P < 0.001). The mean marginal bone loss was < 0.2 mm on average.
CONCLUSIONS: In this retrospective study, laser-treated implants exhibit a low rate of bone absorption around the implants.
摘要：
目的：回顾性评估与长期使用激光表面处理植入物相关的种植体周围骨丢失和健康状况。
方法：对于对照研究，在下颌骨无牙磨牙区总共放置了23枚ASTMF136钛23级植入物。当植入物稳定性商(ISQ)≥70且插入部位的插入扭矩值(ITV)≥35-50Ncm时,手术后一周内，植入物立即进行了临时修复。所有植入物在手术后2个月放置最终修复体。立即装载了13个植入物，而10个植入物是常规装载的。对于比较研究，从第三年开始进行放射学检查，然后在随后的八年中每年进行一次，以监测边缘性骨质流失。
结果：植入物安装八年后，垂直骨丢失的平均变化为0.009mm（P<0.001），植入物放置后8年水平骨丢失的平均变化为0.026mm（P<0.001）。平均边缘骨丢失平均<0.2mm。
结论：在这项回顾性研究中，激光治疗的植入物显示植入物周围的骨吸收率低。
方法：对于对照研究，在下颌骨无牙磨牙区总共放置了23枚ASTMF136钛23级植入物。当植入物稳定性商(ISQ)≥70且插入部位的插入扭矩值(ITV)≥35-50Ncm时,手术后一周内，植入物立即进行了临时修复。所有植入物在手术后2个月放置最终修复体。立即装载了13个植入物，而10个植入物是常规装载的。对于比较研究，从第三年开始进行放射学检查，然后在随后的八年中每年进行一次，以监测边缘性骨质流失。
结果：植入物安装八年后，垂直骨丢失的平均变化为0.009mm（P<0.001），植入物放置后8年水平骨丢失的平均变化为0.026mm（P<0.001）。平均边缘骨丢失平均<0.2mm。
结论：在这项回顾性研究中，激光治疗的植入物显示植入物周围的骨吸收率低。
