Evaluation of Maxillary sinus & subantral class in patients requiring dental implants- A CBCT study in Palestine

Abstract

Background: This study aimed to determine Subantral Classification (SAC) and mean maxillary sinus dimensions using Cone Beam Computer Tomography (CBCT).

Materials & Methods: The present study was conducted on sixty patients requiring dental implant treatment in maxillary posterior region.

In all patients, CBCT scan was obtained in maxillary posterior region with carestream CBCT machine. Images were evaluated for height & width of bone at 1^st premolar, 2^nd premolar, 1^st molar and 2^nd molar region. SAC 1, 2, 3 and 4 was determined. Maxillary sinus height, width, Antero-posterior (AP) dimensions and distance from ostium to sinus floor was measured.

Results: In males, mean bone height at premolars was slightly higher than females, while in molars it was slightly higher in females than in males. Mean bone width at premolars was less in males whereas at molars it was more. The difference was non-significant (P> 0.05). Subantral class 1 was most common. Mean maxillary sinus height in males was 32.11 mm and in females was 31.02 mm. Maxillary sinus width was 26.84 mm in males and 25.15 mm in females. AP dimension was 37.42 mm in males and 36.16 mm in females. Distance from ostium to sinus floor was 32.28 in males and 31.90 in females. The difference was non- significant (P> 0.05).

Conclusion: SAC 1 was seen in most of the patients whereas SAC 4 was least found. Males had slightly higher bone height and width as compared to females.

Clinical significance

CBCT evaluation of maxillary sinus provide useful information such as sinus height, width, AP dimension and SAC helps in treatment planning in patients requiring dental implants.