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Automatic three-dimensional analysis of bone volume and quality change after maxillary sinus augmentation
Jin-Ju Kwon1, JaeJoon Hwang2, Yong-Deok Kim1
1Department of Oral and Maxillofacial Surgery, Pusan National University, Dental Research Institute, Yangsan, Korea.
Clinical Implant Dentistry and Related Research
|October 26, 2019
Summary
Maxillary sinus augmentation using bovine bone graft material showed no significant changes in volume or gray value over time. However, structural analysis revealed significant differences in graft material quality post-surgery, indicating its usefulness for assessing bone graft stability.
Area of Science:
- Oral and Maxillofacial Surgery
- Biomaterials Science
- Radiology
Background:
- Maxillary sinus augmentation is crucial for dental implant success, requiring assessment of bone volume and quality changes.
- Predicting implant stability necessitates analyzing graft material alterations post-procedure.
- Cone beam computed tomography (CBCT) is utilized to evaluate these changes.
Purpose of the Study:
- To analyze changes in bone graft material volume and quality after maxillary sinus augmentation.
- To assess the effectiveness of CBCT in evaluating graft material characteristics.
- To determine the suitability of bovine bone material for sinus grafting.
Main Methods:
- Maxillary sinus lifts with bovine bone material were performed on 22 patients.
- CBCT scans were taken pre-surgery, immediately post-surgery, and 4-7 months later.
- 3-D analysis of graft material volume and structural indices was conducted using registered CBCT images and custom software.
Main Results:
- Average graft material volume decreased, and average gray value increased, but without statistical significance.
- Structural indices including homogeneity, connectivity, thickness, and roughness showed significant differences post-operatively.
- Histogram matching improved the analysis of structural changes in the graft material.
Conclusions:
- Maxillary sinus lift procedures using bovine bone showed no statistically significant changes in graft volume or gray value.
- Structural analysis with histogram matching is a promising method for evaluating bone graft material quality.
- This technique can aid in predicting implant stability after sinus augmentation.
