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目的:评价冲压式上颌窦底提升术同期植入种植体修复中、重度慢性牙周炎患者上颌后牙缺失骨量不足的临床疗效。方法:选择中、重度慢性牙周炎伴上颌后牙缺失患者35例,剩余牙槽骨高度平均(5.95±1.19)mm。采用经牙槽突进路上颌窦底提升术不植骨同期植入Straumanns誖种植体47颗,分别于3~6个月后行上部修复,随访期为6~30个月,通过影像学及临床PD、PLI、BOP等评价指标,评价种植体修复后的临床疗效。结果:观察期内种植体的留存率为95.74%,45颗种植体成功负载,种植体稳定,骨结合良好。术中2颗种植体发生上颌窦黏膜破裂,穿孔率为4.26%。随访期内,种植体周围组织状况良好,PD平均为(3.22±1.07)mm,平均累积边缘骨丧失为(1.38±0.59)mm。结论:对中、重度慢性牙周炎患者,冲压式上颌窦底提升不植骨同期牙种植术能有效修复上颌后牙区骨高度不足的牙缺失,短期疗效可靠,长期疗效需进一步观察。
OBJECTIVE: To evaluate the clinical effect of maxillary posterior teeth missing bone loss in patients with moderate and severe chronic periodontitis treated by simultaneous implantation of implanted maxillary sinus floor. Methods: Thirty-five patients with moderate and severe chronic periodontitis with maxillary posterior teeth missing were selected. The remaining alveolar bone height was (5.95 ± 1.19) mm. Forty-seven Straumanns perverse implants were implanted with alveolar approach without maxillary sinus floor elevation, and were surgically repaired after 3-6 months. The follow-up period ranged from 6 to 30 months. PD, PLI, BOP and other indicators to evaluate the clinical efficacy of implants after repair. Results: The survival rate of the implant during the observation period was 95.74%, 45 implants were loaded successfully, the implants were stable and the bone union was good. The maxillary sinus mucosa was ruptured in 2 implants and the perforation rate was 4.26%. During follow-up, the tissue around the implant was in good condition with an average PD of (3.22 ± 1.07) mm and a mean cumulative margin loss of (1.38 ± 0.59) mm. Conclusion: For patients with moderate or severe chronic periodontitis, stamping maxillary sinus floor lifting without bone graft simultaneous dental implants can effectively repair the defect of the maxillary posterior teeth with insufficient bone height. The short-term curative effect is reliable and the long-term curative effect needs further observation.