Prevalence and characterization of maxillary sinus septa in a brazilian population

Abstract

Background The aim of this study was to assess the anatomic aspects of the maxillary sinus septa, by means of computed tomography images, in a Brazilian population. The results might be of clinical significance in sinus lift surgery planning. Material and Methods In the study, 123 computed tomographs obtained from a private radiology clinic were used. They were analyzed by a single, trained and calibrated observer in order to evaluate the presence, quantity, localizations, dimensions, orientations and different characteristics in dentate, partially edentulous and completely edentulous individuals of the sinus septa. Results Of the individuals analyzed, 26% had a septum in the maxillary sinus, with 59.6% being classified as complete, 44.2% showed prevalence for the middle region of the maxillary sinus. There was no statistically significant difference between the right and left sides ( p >0.05). Conclusions The majority of patients in the sample analyzed presented to septa in the maxillary sinuses, and when septa were present, a higher number of occurrence was noted in the middle region of the maxillary sinus. (This region is normally the choice of sinus lift surgery). There was no predilection relative to age, sex and type of dentition. Key words: Multislice computed tomography, maxillary antrum, anatomic variation.

Incidence of Maxillary Sinus Septa in the Saudi Population

“…This was in agreement with several other studies; for example, Furtado and his colleagues found the highest percentage of septa to be in the middle sinus region (44.2%) (45), while Toprac and Atac found it was 59.62% (43), and the Orhan group reported 69.1% (37). Meanwhile, contradictory results were also reported by Schriber and his group, who found the majority of septa to be located in the posterior maxilla in the region of the second molars (47), whereas Shahidi et al found most septa were in the anterior region (Shahidi et al 2016) and (48) reported no signi cant difference among the locations of septal occurrence in the anteroposterior plane (48).…”

“…Comparing the occurrence of septa in the right versus the left sinuses revealed no signi cant difference, which was in accordance with (45), where no statistically signi cant difference was detected when evaluating both sides (p > 0.05). In contrast, some differences were reported in other studies with no clear explanation for the reasons (37) Our study presented a lower number of subjects with bilateral septa (only 35.25% of all patients with septa had them bilaterally).…”

“…Most septa detected in this study were of the complete type, i.e., dividing the sinus into separate compartments. Similar results were reported in the study of Furtado, with 59.6% of the septa being complete (45) Edentulism is commonly associated with sinus expansion, and thus, its relationship with the presence of septa was investigated. The study by Toprac and Atac (43) found most of the septa to be present in completely edentulous patients (50.96%).…”

Incidence of maxillary sinus septa in the saudi population

“…Comparing the occurrence of septa in the right versus the left sinuses revealed no significant difference, which was in accordance with [ 48 ], where no statistically significant difference was detected when evaluating both sides ( p > 0.05). In contrast, some differences were reported in other studies with no clear explanation for the reasons [ 40 ].…”

Application Effect of External and Internal Elevation of Maxillary Sinus in Implant Restoration of Posterior Maxilla

“…Due to the continuous gasification and expansion of the maxillary sinus, the distance between the top of the maxillary alveolar ridge and the bottom wall of the maxillary sinus is reduced, and the bone is more porous, resulting in a lower height of the remaining alveolar bone in the implant area, which is prone to atrophy, thus increasing the difficulty of dental implants [ 9 , 10 ]. In recent years, the maxillary sinus lift has had a good clinical effect on the implant restoration of the maxillary posterior region.…”