@article{Francesco201630 title = "Anatomical Risk Factors Associated with Immediate Extraction Placement in the Posterior Maxilla: A Human Retrospective Cone-Beam Study", journal = "Journal of Dentistry And Oral Implants", volume = "1", number = "2", pages = "30 - 40", year = "2016", note = "", issn = "2473-1005", doi = "https://doi.org/10.14302/issn.2473-1005.jdoi-16-999", url = "https://openaccesspub.orgjdoi/article/326", author = "Amato Francesco and Polara Giorgio and Prestileo Chiara", keywords = "subsinus basal bone", keywords = "immediate placement", keywords = "maxillary sinus", keywords = "cone-beam CT", keywords = "membrane perforation." }