Evaluation of three-dimensional changes after sinus floor augmentation with DBBM

Abstract

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

CLC Number:

R782.12

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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