A comparative study between data obtained from conventional lateral cephalometry and reconstructed three-dimensional computed tomography images.

Objectives: The aim of this study was to verify the concordance of the measurement values when the same cephalometric analysis method was used for two-dimensional (2D) cephalometric radiography and three-dimensional computed tomography (3D CT), and to identify which 3D Frankfort horizontal (FH) plane was the most concordant with FH plane used for cephalometric radiography.

Materials And Methods: Reference horizontal plane was FH plane. Palatal angle and occlusal plane angle was evaluated with FH plane.

Frankfort horizontal plane is an appropriate three-dimensinal reference in the evaluation of clinical and skeletal cant.

Objectives: In three-dimensional computed tomography (3D-CT), the cant is evaluated by measuring the distance between the reference plane (or line) and the tooth. The purpose of this study was to determine the horizontal skeletal reference plane that showed the greatest correlation with clinical evaluation.

Materials And Methods: The subjects were 15 patients who closed their eyes during the CT image taking process.