牙科新材料：Dragonfly 定量纳米氟磷灰石改性正畸水门汀内部孔隙，2 wt.% 配方粘接强度最优Dental Materials: Dragonfly Quantifies Internal Porosity of Nanofluorapatite-Modified Orthodontic Cement; 2 wt.% Formulation Shows Best Bond Strength
波兰弗罗茨瓦夫的研究团队用 SkyScan 1172 micro-CT 扫描了掺入纳米氟磷灰石（nFAp）的 GC Fuji Ortho LC 正畸树脂改性玻璃离子水门汀，并借助 Dragonfly 3D World 2025.1 的 Upper Otsu 分割与 Porosity Segmentation 算法定量分析内部孔隙与孔形貌：nFAp 的加入提高了材料孔隙率和可解析的孔隙数密度，孔隙尺寸变化不大；改性组的剪切粘接强度从 12.47 MPa 显著提升至约 17 MPa，其中 2 wt.% nFAp 配方综合机械性能最优，而压痕硬度与弹性模量无显著差异。A Polish research team scanned nanofluorapatite (nFAp)-modified GC Fuji Ortho LC orthodontic resin-modified glass ionomer cement with a SkyScan 1172 micro-CT and quantified internal porosity and pore morphology using Dragonfly 3D World 2025.1 (Upper Otsu segmentation and the Porosity Segmentation with AO Fields algorithm): nFAp incorporation increased volumetric porosity and resolved pore number density while pore dimensions changed only modestly; shear bond strength rose significantly from 12.47 MPa to about 17 MPa in the modified groups, with the 2 wt.% nFAp formulation showing the most favorable overall mechanical profile and no significant change in indentation hardness or modulus.