【摘要】 目的:观察上颌窦内提升术在上颌后牙区种植修复的临床效果和植入后一年的骨吸收量。方法:对本院2008年8月-2011年12月20例上颌后牙区骨萎缩患者行上颌窦内提升术,同期植入ITI种植体27枚。术前及术后1月,3月,6月,12月临床复查及X线片检查骨垂直高度。结果:3例发生上颌窦粘膜穿破,3例发生崩瓷。20例患者术前平均剩余垂直骨高度(RBH)为6.5±1.2mm,提升高度为3.7±1.3mm,均形成良好初期稳定性。术后半年与一年骨吸收的平均值为(0.48±0.21)mm,(0.65±0.28)mm,无显著性差异。结论:上颌窦内提升术创伤小但存在穿破上颌窦粘膜风险。术前严格掌握适应症可降低风险,可取得较好的治疗效果。更多还原

【Abstract】 Objective: To observation the clinical results of osteotome sinus floor elevation technique in the posterior maxillary region and the bone loss one year after implant.Methods: From August 2008 to October 2010,20 patients whose alveolar bone atrophy of posterior maxilla were placed maxillary sinus lifting techniques and simultaneous implant 27 ITI placements.The clinical review and vertical level of bone were evaluated preoperative,1 month,3 months and 6 months and one year after operation.Results: sinus membrane perforation was observed in 3 cases,ceramic fracture was observed in 3 cases.All patients preoperative mean residual bone height under the maxillary sinus was 6.5±1.2mm,the mean gained bone was 3.7±1.3mm,all got the good initial stabilty.The residual protrusion length decreased after half a year and one year were(0.48±0.21)mm,(0.65±0.28)mm.There was no significantly difference in the two periods.Conclusion: The technique of maxillary sinus floor elevation and simultaneous implantation is less invasive,but has the risk of maxillary sinus membrane perforation.Strictly mastering indications preoperative can reduce risk and achieve better results.更多还原