Dimensional correlations between maxillary sinus and nasal cavity aiming implant‐supported rehabilitation: Edentulous patients' tomographic study

Abstract Objective Correlate dimensions of the maxillary sinus and nasal cavity, in addition to evaluate their implications for the implants insertion in the maxilla posterior region. Materials and Methods Cross‐sectional tomographic study of 58 totally edentulous adult patients, totaling 116 maxillary sinuses. The RadiAnt DICOM Viewer™ 2020.2 (64‐bit) software was used to measure basal/alveolar widths and maxillary length, in addition to linear distances from the maxillary sinus and nasal cavity to calculate volumes. Results There was no significant correlation between the maxillary sinus nasal cavity volumes ( ρ = 0.048/ p = 0.609). The volume of the nasal cavity showed a significant difference between genders ( p = 0.007), bigger in males. Greater alveolar and basal maxillary widths correlated with greater maxillary sinus volume. Maxilla length was significantly correlated with nasal cavity volume ( ρ = 0.425/ p < 0.001). Sinus membrane thickness was not significantly associated with maxillary sinus volume. There was no significant correlation between sinus thickness lateral wall and sinus membrane thickness. Conclusion Maxillary sinus volume did not present a significant correlation with nasal cavity volume and no correlation was found between these volumes and the age factor. Tomographic analysis of the maxillary sinus is the most reliable resource for the rehabilitation planning of the posterior region of the maxilla.