Retrograde penetration of the posterior lateral wall of the maxillary sinus during extraction of impacted maxillary third molars: report of two cases
Chen Zishan, Lei Rongchang, Guo Ge
China Journal of Oral and Maxillofacial Surgery . 2026, (4): 424 -427 .  DOI: 10.19438/j.cjoms.2026.04.017