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作者研究25岁～30岁正常人牙釉质表面的超微结构。研究标本是120颗为矫形治疗而拔除的完整的前磨牙,用扫描电镜微细分析器《Camscan 4D V》选择相
The authors studied the ultrastructure of enamel surface in 25-year-olds and 30-year-olds. The study specimen consisted of 120 intact premolar teeth that were removed for orthopedic treatment and selected using a scanning electron microscopy “Camscan 4D V”