Cusp angle

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Cusp angle

The angle made by the slopes of a cusp with the plane which passes through the tip of the cusp and which is perpendicular to a line bisecting the cusp, measured mesiodistally or buccolingually, the angle made by the slopes of a cusp with a perpendicular line bisecting the cusp, measured mesiodistally or buccolingually, one-half of the included angle between the buccal and lingual or mesial and distal cusp inclines.