Retrospective Study on Application of Metal Preformed Full Crown Distal Shoe Space Maintainer in Premature Loss of the Primary Second Molar
XIAO Fangli, XIE Ling, ZHANG Songying, DING Yue, REN Lewen, Tian Wenxian
Journal of Oral Science Research . 2024, (12): 1080 -1085 .  DOI: 10.13701/j.cnki.kqyxyj.2024.12.009