Anatomical proximity of upper teeth and local factors associated with the thickness of the maxillary sinus membrane: a retrospective study. Giornale Italiano di Endodonzia, [S. l.], v. 35, n. 2, 2021. DOI: 10.32067/GIE.2021.35.01.31. Disponível em: https://www.giornaleitalianoendodonzia.it/gie/article/view/247. Acesso em: 11 oct. 2025.