Endoscopic Access Possibility in Maxillary Sinus Floor Augmentation

The purpose of this study is to determine the optimal endoscopic approach with the highest share of visibility (SV) from the maxillary sinus floor (MSF). Materials and methods: An experimental study was conductedwhere SV of the maxillary sinus total surface area was measured on twenty 3D simulation models by using a built-in optics endoscope with angular visual axis deflected from 15? - 90?. Results. There was no statistically significant difference in the share of the total field of view of MSF compared to the medial, central and distal endoscopic access openings at endoscope penetration of 10 mm and endoscope viewing angle of 45?, p?0.05. The SV of the total field of view of MSF was the same for all three openings, and this was the highest compared with all other observations performed. Conclusion: The highest SV from the total field of view of MSF was observed in all three endoscopic access openings (medial, central, distal) with the endoscope penetration at 10 mm and viewing angle at 45?. The lowest SV of the total field of view of MSFwas observed at the distal opening with an endoscope penetration of 20 mm and viewing angle of 15?.