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目的评估穿牙槽嵴顶四周剥离上颌窦底提升术后植骨高度变化。方法 13例上颌后牙缺失剩余骨高度不足(<10mm)患者共16个种植位点进行穿牙槽嵴顶四周剥离上颌窦底提升术同期植入无机牛骨基质(BioOss)。术后即刻及二期复诊时拍摄CBCT测量上颌窦底提升高度,两者之间进行配对t检验。结果术前剩余牙槽骨高度从2.46~8.54mm,平均5.46±1.76mm;16个位点共植入15颗种植体,种植体长度从11.0~11.5mm,平均11.07±0.18mm。术后上颌窦底提升高度从7.95~12.97mm,平均10.37±1.61mm;术后修复完成时间从4~10个月,平均6.0±1.76个月;术后复诊拍摄CBCT时间3~6个月,平均4.31个月,复诊时上颌窦底提升高度从5.83~15.24mm,平均10.07±2.31mm;与术后即刻相比,上颌窦底提升高度改变幅度从-2.12~5.32mm,平均降低0.30±1.84mm,占术后即刻上颌窦底提升高度的2.9%,两者之间无显著性差异(P=0.51);与术后即刻相比,复诊时4个位点上颌窦底提升高度增加(占所有位点的25%),增加幅度从0.24~5.32mm,平均2.16±2.19mm,其余12个位点上颌窦底提升高度降低(占所有位点的75%),降低高度从0.08~2.12mm,平均1.13±0.60mm。结论穿牙槽嵴顶四周剥离上颌窦底提升术后短期内大部分位点植骨高度降低,少部分位点植骨高度增加,总起来说植骨高度稳定无显著变化。
Objective To evaluate the changes of bone graft height after alveolar ridge lifting at the crest of alveolar ridge. Methods Thirteen patients with maxillary posterior teeth missing residual bone height (<10mm) were implanted with albino stripped maxillary sinus floor in 16 sites. BioOss was implanted in the same period. Immediately after surgery and second visit when the CBCT measurement of maxillary sinus floor height, the paired t-test between the two. Results The height of remaining alveolar bone was 2.46 ~ 8.54mm before operation, with an average of 5.46 ± 1.76mm. There were altogether 15 implants implanted at 16 sites. The length of implants was 11.0 ~ 11.5mm with an average of 11.07 ± 0.18mm. The height of postoperative maxillary sinus floor elevation from 7.95 ~ 12.97mm, an average of 10.37 ± 1.61mm; postoperative repair completed from 4 to 10 months, an average of 6.0 ± 1.76 months; CBCT postoperative follow-up time of 3 to 6 months, Average 4.31 months, the maxillary sinus floor lifting height from 5.83 ~ 15.24mm, an average of 10.07 ± 2.31mm; compared with immediately after surgery, the height of maxillary sinus lifting height range from -2.12 ~ 5.32mm, an average reduction of 0.30 ± 1.84 mm, accounting for 2.9% of the maxillary sinus lifting height immediately after operation, with no significant difference between them (P = 0.51). Compared with the immediately after operation, the maxillary sinus floor lifting height increased at 4 sites 25% of all sites), increasing from 0.24 ~ 5.32mm, an average of 2.16 ± 2.19mm, the other 12 sites reduce the maxillary sinus floor lifting height (accounting for 75% of all sites), reduce the height from 0.08 ~ 2.12mm , An average of 1.13 ± 0.60mm. Conclusion In the short term, the height of bone graft decreased in most cases after stripping alveolar ridge, and the height of bone graft increased in a small part. In short, the height of bone graft did not change significantly.