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Maxillary Sinus Septa and Anatomic Correlation With the Schneiderian Membrane
Davide Rancitelli1, Andrea Enrico Borgonovo, Marco Cicciù
1*Clinic for Maxillofacial Surgery and Dentistry, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan †Human Pathology Department, School of Dentistry, University of Messina, Messina ‡Department of Oral Rehabilitation, Istituto Stomatologico Italiano, University of Milan, Milan §Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy.
Maxillary sinus septa, common anatomical variations, were found in 38.1% of sinuses. These septa can thicken the sinus membrane, impacting sinus lift surgery planning.
Area of Science:
- Radiology
- Anatomy
- Oral and Maxillofacial Surgery
Background:
- Maxillary sinus septa are common anatomical variations.
- Understanding their prevalence and characteristics is crucial for surgical planning, particularly for sinus lift procedures.
Purpose of the Study:
- To evaluate the prevalence, localization, and height of maxillary sinus septa.
- To measure mucosal thickness in relation to these septa.
Main Methods:
- Cone-beam computed tomography (CBCT) scans of 228 maxillary sinuses were analyzed.
- Septa were identified, and their height and location were recorded.
- Mucosal thickness was measured, both generally and adjacent to septa.
Main Results:
- Maxillary sinus septa prevalence was 38.1%.
- Primary septa (5.5 mm) were significantly taller than secondary septa (3.4 mm).
- Anterior and middle septa were taller than posterior septa; mucosal thickness increased near septa.
Conclusions:
- Maxillary sinus septa are frequent and can lead to sinus membrane thickening.
- Detailed radiographic assessment of sinus anatomy is essential before planning sinus lift surgery.
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