Tridimensional analysis of maxillary sinus anatomy related to sinus lift procedure.
OBJECTIVE
To evaluate the angulation of the maxillary sinus walls at the apical sinus region.


METHODS
Using preoperative computerized tomographies of 15 patients selected for sinus lift procedures, the angulation of the maxillary sinus floor was measured drawing straight lines tangential to the mesial and lateral walls. The measurements were taken from sagittal images at specific areas (i.e., second bicuspid, first molar, and second molar).


RESULTS
The results showed that the second bicuspid sites have a sharper angulation than the second molar sites, and these second molar sites have a sharper angle than the first molar sites.


CONCLUSIONS
The sharper angle observed in the second bicuspid area can influence the feasibility of schneiderian membrane evaluation when compared to the molar areas.
Velloso
Glauco Rodrigues
GR
Oral Implantology at Estácio de Sá University. glaucovelloso@predialnet.com.br
Vidigal
Guaracilei Maciel
GM
de Freitas
Marcos Motta
MM
Garcia de Brito
Oldemar F
OF
Manso
Marcelo Corrêa
MC
Groisman
Mario
M
D000704:Analysis of Variance; D002508:Cephalometry / Q000379:methods; D003758:Dental Implantation, Endosseous; D006801:Humans; D007575:Jaw, Edentulous / Q000000981:diagnostic imaging*; D008443:Maxillary Sinus / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods