Yussif, N. M., and K. Selim. “Analysis of Post-Extraction Consequences of Posterior Maxillary Molars on Antral Sinus in Periodontitis Patients: A Preliminary Qualitative Two Dimensional Panoramic Study (Prevalence Study)”. Journal of Osseointegration 13, no. 2 (July 6, 2021): 82–88. Accessed April 16, 2024. https://www.journalofosseointegration.eu/jo/article/view/408.