الفهرس | Only 14 pages are availabe for public view |
Abstract The aim of this study was to evaluate and analyze internal morphology of permanent mandibular first and second molars in Egyptians using an ex-vivo assessment, and Cone Beam Computed Tomography (CBCT). A total of 300 extracted human permanent mandibular molars (162 mandibular first molars and 138 mandibular second molars) were collected from Egyptian patients. The teeth were examined visually and the root number and morphology were recorded. After access preparation, thorough inspection of pulpal floor was performed. DOM was used for proper canal number determination. The teeth evaluations involved number of roots, number of canals (mesial and distal) and type of canals (mesial and distal) using an ex vivo assessment and CBCT. The CBCT unit was operated at 78kV, 10mA with 8 second exposure time and voxel size 150µm. Image analysis was performed using Planmeca Romexis 3D Software. Number of roots were determined and confirmed using sagital, coronal and axial sections, number of canals were determined by navigation of the axial tomographic section, while type of canals was investigated using sagital section and confirmed in the axial section. Data were collected and statistically analysed. |