Table 1.

Summary of vertical distances in our study.

Measurement	Mean (mm) ± SD	Range (mm)
hMMSR – nasal floor	33.83 ± 3.40	26.37 to 43.98
hMMSR – sphenoid ostium	1.79 ± 3.09	−5.60 to 10.84
hMMSR – sphenoid roof	12.02 ± 2.93	4.22 to 18.29
hMMSR – sphenoid floor	6.18 ± 2.88	1.06 to 12.85

hMMSR, highest medial maxillary sinus roof; SD, standard deviation.