Quantification of alveolar bone with Erode-Dilate method combined with the sphere module in Micro-CT analysis
LIU Xue-fei
ZHANG Xu
LIN Jiang
Abstract：AIM: To evaluate the remaining alveolar bone around molars quantitatively in mice with the mathematical morphology method of Erode-Dilate and sphere module for the Micro-Computed Tomography ( Micro-CT) images. METHODS:The second maxillary molars were ligated with silk in maxilla bone of 10 C57 mice for 2 weeks and 10 mice with out ligation were served as the control. The maxilla bones were scanned with Micro-CT. And then the remaining alveolar bone was measured with two-dimensional linear method and Erode-Dilate and sphere module three-dimensional method respectively. The difference between interexaminer and intraexaminer, and the running time were analyzed statistically. RESULTS: The two-dimensional linear method showed that the remaining alveolar bone was statistically different between control and experimental groups. But the three-dimensional method revealed the statisti-cally difference not only in bone volume but also in density (P<0. 05). The reliability and repeatability of Erode-Di-late and sphere module three-dimensional method was higher and more efficient than two-dimensional linear method (P<0. 05). CONCLUSION:Silk ligature can induce significant alveolar bone resorption in mice in 2 weeks. Erode-Dilate and sphere module three-dimension method can be used quickly and accurately to evaluate the remaining alve-olar bone with Micro-CT images in mice.
Keywords：Micro-CTalveolar boneperiodontitismathematical morphologyErode-Dilate
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 422-426,438 )