Quantitative study of Porphyromonas gingivalis in subgingival plaques of orthodontic adults
LU Hui1, ZHOU Hui-min2, SONG Xiao-bo3, SUN Jing-lu3, LIU Hong-yan1
West China Journal of Stomatology . 2010, (02): 166 -169 .  DOI: 10.3969/j.issn.1000-1182.2010.02.013