28颗Straumman种植体在上颌前牙区种植修复的临床研究

Clinical study of 28 Straumman implants placed in the anterior maxilla

目的评估Straumman种植体用于上颌前牙区域的临床应用。方法选取行上颌前牙种植的患者23例，植入28颗Straumman种植体，冠修复完成后进行随访观察，种植体周围骨吸收状况采用x线片进行比较，用Jemet牙龈乳头指数判定软组织状况。结果28颗种植体的成功率100％。种植体负载0．5年、1年、2年和4年后近远中牙槽骨吸收差异无统计学意义（t=0．689、0．686、0．694、0．705，均P〉0．05），2年后种植体周围的牙龈乳头恢复良好。结论Straumman种植系统在在上颌前牙区能取得良好的疗效，具有满意的美学效果，值得在临床上推广应用。

Objective To evaluate the clinical application of Straumman implant system in the upper anterior region. Methods 23 patients were implanted with 28 Straumman implants. Follow up of clinical observation and maitenance began after final crown restored. Bone resorption mesial and distal to the implant were recorded by periodical X-ray check. Soft tissue was observed and analyzed according to Jemet papilla index. Results Total survival rate of all the 28 implats was 100%. Alveolar bone resorptions between mesial part of the implant and distal part with loading after 0.5 year, 1 year,2 years and 4 years had no stastical significance （ t = 0. 689,0. 686,0. 694,0. 705, all P 〉 0. 05 ）. Interdental papillae around implant supported crown gained recovery after 2 years. Conclusion Optimal treatment result was gained through Straumman implants applied in the maxillary anterior region with satifactory aesthetic expectation. Its further use was predictable and advisable.