Fig. 4From: Cone-beam computed tomography-based analysis of maxillary sinus pneumatization extended into the alveolar process in different age groupsScatter diagram showing the relation between amount of of maxillary sinus pneumatization (MSP) extended into alveolar process and age (rs = − 0.2). Correlations between age and amount of MSP were examined through Pearson’s correlationsBack to article page