Figure 7
Representative image of total occlusal convergence (TOC) calculation algorithm. \(\overrightarrow{p}\) is direction of insertion path, \({a}_{f}\) is area of face f, and \(\overrightarrow{{n}_{f}}\) is normal direction of \({a}_{f}\). Taper T is calculated for each surface (Mesial, Distal, Buccal, Lingual) using area weighted average taper. TOC for the mesiodistal (MD) plane is calculated by adding Taper of M and Taper of D, and TOC for buccolingual (BL) plane is calculated by adding Taper of B and Taper of L. Grades A (2 points, green, ‘Acceptable’), B (1 point, yellow, ‘Marginally acceptable’), and C (0 point, red, ‘Unacceptable’) were color-marked, based on evaluation criteria for tooth preparation.
