An assessment of the relationship between every root apex of maxillary posterior teeth and maxillary sinus bottom with CBCT
ZHU Hong-hua
GONG Bai-juan
LI Zhi-min
JU Hao
SUN Hong-chen
Abstract：Objective The aim of the present study was to provide anatomic basis for the implantation of maxillary tooth ,diagnosis and treatment of disease and other oral operations via analyzing CBCT slice of the general population in Jilin and measuring distance between root apex of maxillary molar teeth and bottom of maxillary sinus .Methods A total of 27 gen‐eral population (13 males and 14 femals) with bilateral maxillary sinus region were examined using dental cone‐beam CT , Perpendicular lines between the deepest point of the maxillary sinus bottom and the every root apex of the maxillary second premolars and first and second molars were drawn on the cross‐sectional images and the distances were measured using built‐in measurement tools of cone‐beam CT .Results No statistically significant differences were found between the right and left side measurements or between female and male patients ( P >0 .05) .In total 27 general population (54 sides) , the distance from the root apex of root of second premolar ,mesial root ,palate root ,distal root of first molar and second molar to the inferior wall of maxillary sinus were (4 .13 ± 3 .71) mm ,(3 .12 ± 3 .76) mm ,(3 .50 ± 3 .58) mm ,(2.62 ± 3 . 32) mm ,(1 .81 ± 2 .55) mm ,(3 .14 ± 3 .08) mm ,(2 .67 ± 3 .27) mm ,respectively .Conclusion The distance between the inferior wall of maxillary sinus and root apex of mesial root of maxillary second molar is the closest and maxillary second premolar is the farthest ( P <0 .05) .
Keywords：Maxillary sinusMaxillary molar3-D reconstructionDental implants sugeryCone beam CT
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1875-1877,1881 )