显微CT法研究上颌第一磨牙牙根表面积.

Obejective To study the root surface area of maxillary first molar by micro-CT and MeVisLab software. Methods Nineteen extracted Chinese maxillary first molars were randomly collected and scanned by micro-CT. An application framework of MeVisLab 2.6.1 software package was used for image segmentation and reconstruction. Root surface area， surface areas apical to the buccal， mesial and distal furcation layer were calculated，respectively. SPSS software was used for statistical analysis. Results Root surface area of the maxillary first molars was（449.25±66.02）mm2,surface areas apical to the buccal， mesial and distal furcation layer were （292.75±57.94） mm2， （299.77±59.09） mm2, （288.49±56.22） mm2, respectively （ ＞0.05） . Conclusion Micro-CT scans and MeVisLab software are useful tools for root surface area assessment. [ABSTRACT FROM AUTHOR]