DBBM骨替代材料在上颌窦外提升中的三维影像学研究

摘要/Abstract

摘要： 目的：通过螺旋CT数据的三维重建与测量，评估用含量为100% DBBM无机牛骨(Bio-Oss)充填材料进行上颌窦提升后提升区组织的体积稳定性。方法：对12例用100% DBBM进行上颌窦外提升一期植骨术的患者分别于术后2周与6个月行提升区的螺旋CT扫描，将CT数据通过SurgiCase CMF5.0软件进行三维重建与测量，通过自身前后对照观察充填区体积的变化。数据计算由Stata10软件包完成。结果：充填物总体积平均减小19.40%。其中，颊腭向最宽处平均减少0.29%，近远中向最宽处平均减少5.87%，垂直向最高处平均减少14.32%。结论：DBBM在术后6个月内有一定的体积收缩，以垂直向最为显著。

关键词: 上颌窦提升, 骨替代材料, 体积变化, 螺旋CT, 三维重建

Abstract: PURPOSE: The objective of present study was to assess the dimensional stability of the grafting material DBBM (Bio-oss )after maxillary sinus floor augmentation with spiral computed tomography (SCT) scans and 3D reconstruction. METHODS: Two postoperative SCT scans were available from 12 patients who had undergone maxillary sinus lift procedures. CT scan was taken at 2 week after surgical intervention and 6 months later, respectively. A total of 12 maxillary sinuses were augmented with 100% DBBM before implant insertion by lateral antrostomy in a staged approach. The augmentation volume was calculated using the SurgiCase CMF5.0 software. Data were calculated by Stata10 software package. RESULTS: The mean volume of the graft was reduced by 19.40%. Specifically, the reduction reached 0.29%in the buccal-palatal direction, 5.87% in the mesial-distal dimension, and 14.32% in vertical dimension. CONCLUSIONS: This study confirmed that the volume of DBBM has a certain amount of reduction within 6 months after sinus floor augmentation. The reduction in vertical direction is most severe.

Key words: Sinus augmentation, Bone substitute, Volume change, Spiral computed tomography, 3D reconstruction

中图分类号:

R782.12

郭雪华, 姜茜, 阮宏, 罗英, 余优成. DBBM骨替代材料在上颌窦外提升中的三维影像学研究[J]. 上海口腔医学, 2013, 22(4): 448-452.

GUO Xue-hua, JIANG Qian, RUAN Hong, LUO Ying, YU You-cheng. Evaluation of three-dimensional changes after sinus floor augmentation with DBBM[J]. Shanghai Journal of Stomatology, 2013, 22(4): 448-452.

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