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目的:1.统计前牙区采用即刻种植术植入种植体后5年以上的种植体存留率,探讨前牙区即刻种植术后种植修复的远期效果;2.通过锥形束CT观察种植体唇侧牙槽骨厚度并分析其原因。材料和方法:统计首都医科大学附属北京口腔医院种植中心2001年至2007年期间行前牙区即刻种植术的病例96例,共植入种植体115颗,术后4～10个月行上部义齿修复,平均随访时间为7.4年(5～11年)。检查项目为临床检查和锥形束CT检查。结果:骨愈合期间5颗种植体脱落,功能负载后1颗种植体脱落,种植体存留率为94.7%。对来院复诊的24名患者(28颗种植体)进行临床检查,种植体均无松动。CBCT观察发现25.0%(7颗)的种植体唇侧牙槽骨完全吸收,种植体根尖暴露于骨膜下,46.4%(13颗)种植体唇侧牙槽骨完整,菲薄,厚度<2mm,28.6%(8颗)种植体唇侧牙槽骨完整,厚度≥2mm。结论:本研究表明前牙区即刻种植术后的种植体5年以上存留率在90%以上。前牙区即刻种植的远期临床修复效果较为满意。
To investigate the long-term effect of implant restoration after immediate implantation in anterior teeth area. (2) To observe the long-term effect of implantation by cone beam CT Body lip side alveolar bone thickness and analyze the reason. Materials and Methods: A total of 96 cases of immediate dental implants in Beijing Dental Hospital Affiliated to Beijing Stomatological Hospital, Capital Medical University from 2001 to 2007 were enrolled. A total of 115 implants were implanted. The upper dentures were performed 4 to 10 months after operation. Repair, the average follow-up time was 7.4 years (5 to 11 years). Check items for clinical examination and cone beam CT examination. Results: Five implants were lost during the healing process. One implants fell off after functional loading, and the implant retention rate was 94.7%. Twenty-four patients (28 implants) who visited our hospital for clinical examinations did not have any loose implant. CBCT observation showed that the labial alveolar bone was completely absorbed in 25.0% (7) implants, the root tips of the implants were exposed to the periosteum, the alveolar bone in 46.4% (13) implants was intact, 28.6% (8) implant labial alveolar integrity, thickness ≥ 2mm. CONCLUSIONS: This study shows that implants immediately implanted in the anterior teeth area have a survival rate of over 90% over 5 years. Long-term clinical repair effect of anterior teeth immediate planting more satisfied.