Journal of Oral Science Research
Clinical Study on Gingival Invagination after Tooth Extraction and Orthodontic Treatment.
XU Geng-chi,ZHANG Xiao-bo, MOU Lan,HAN Yao-hui,GE Zhen-lin
Journal of Oral Science Research . 2016, (3): 282 -284 .  DOI: 10.13701/j.cnki.kqyxyj.2016.03.017