Journal of Oral Science Research
Spontaneous Bone Formation on Maxillary Sinus Floor after Filling Extraction Socket with Bone Grafting Materials: A Case Report
LIU Zongyi, YU Changying
Journal of Oral Science Research . 2021, (12): 1156 -1158 .  DOI: 10.13701/j.cnki.kqyxyj.2021.12.020