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. 2024 Nov 1;16(11):e1317–e1322. doi: 10.4317/jced.62127

Figure 1.

Figure 1

Construction of angular and linear measurements. GA (red) is the gonial angle. OP (yellow) is the line demarking the occlusal plane. SA (dark blue) is space available (distance from distal height of contour of the mandibular first molar to the anterior border of the ramus). TS (purple) is tooth size (distance from mesial to distal height of contour. RTMW (light blue) is ramus to molar width (distance from distal height of contour of mandibular first molar to the posterior border of the ramus). OP-PR is the occlusal plane to posterior ramus angle (green arc).