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Experimental simulation

SC Saverio Cosola
PT Paolo Toti
MP Miguel Peñarrocha-Diago
UC Ugo Covani
BB Bruno Carlo Brevi
DP David Peñarrocha-Oltra
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Experimental evidence that supported the validity of the abovementioned vector equations and verified the model's accuracy was given by an algorithm using components OA→Y, OA→Z, OR→Y, OR→Z directly measured on the radiographs as per in Fig. 1 and “Appendix”. Digital prototypes of cylinder screwed, root-form, 1 mm-tread pitch dental implants were obtained by a Cone Beam Computerized Tomography scanner (Gendex GXCB-500, Gendex Dental Systems) with the following setting: 120 kV, 30.89 mAs, isotropic voxel size of 200 μm. The virtual 3D phantom-implant was voxelized and interpolated from the original.dcm file with the following setting: 100 μm × 100 μm × 100 μm, bit depth 8-bit grayscale.

A simulated radiograph could be generated through the overlapping of all the phantom-layers depicting implant in three-dimensions along the direction of the x-axis, so obtaining a projected phantom-implant in the YZ-plane (like it is the detector plane) by a subroutine described in a preceding article [3].

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