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Table 1 Detection rates of anatomic variations and lesions in the maxillary sinus by imaging modality in both groups of patient

From: The significance of cone beam computed tomography for the visualization of anatomical variations and lesions in the maxillary sinus for patients hoping to have dental implant-supported maxillary restorations in a private dental office in Japan

Anatomic variations and lesions of the maxillary sinus Detection rates (Frequency)   
With Without Total
Panoramic radiographs CBCT Panoramic radiographs CBCT Panoramic radiographs CBCT
Anatomic variations       
Pneumatization 38% (20/55) 42% (23/55) 40% (21/52) 40% (21/52) 38% (41/47) 41% (44/107)
Septa 33% (17/55) 51% (28/55) 29% (15/52) 46% (24/52) 30% (32/107) 49% (52/107)
Hypoplasia 4% (2/55) 4% (2/55) 0% (0/52) 0% (0/52) 2% (2/107) 2% (2/107)
Aplasia 0% (0/55) 0% (0/55) 0% (0/52) 0% (0/52) 0% (0/107) 0% (0/107)
Lesions       
Mucosal thickening 15% (8/55) 62% (32/55) 11% (6/52) 38% (20/52) 13% (14/107) 49% (52/107)
SOL 5% (3/55) 18% (10/55) 19% (10/52) 33% (17/52) 12% (13/107) 25% (27/107)
Discontinuity of the sinus floor 4% (2/55) 9% (5/55) 4% (2/52) 8% (4/52) 4% (4/107) 8% (9/107)
Fluid retention 0% (0/55) 0% (0/55) 0% (0/52) 0% (0/52) 0% (0/107) 0% (0/107)
Bone thickening 5% (3/55) 9% (5/55) 2% (1/52) 2% (1/52) 4% (4/107) 6% (6/107)
Antrolith 2% (1/55) 7% (4/55) 0% (0/52) 2% (1/52) 1% (1/107) 5% (5/107)
Exostosis 0% (0/55) 0% (0/55) 2% (1/52) 6% (3/52) 1% (1/107) 3% (3/107)
Sinus opacification 13% (7/55) 24% (13/55) 6% (3/52) 12% (6/52) 9% (10/107) 18% (19/107)
Foreign body 0% (0/55) 0% (0/55) 0% (0/52) 0% (0/52) 0% (0/107) 0% (0/107)
  1. SOL: Space occupying lesion **p < 0.01.
  2. CBCT: Come beam computed tomography *p < 0.05.