Wilson's Curves: Evaluation of a New Method Measuring Frontal Convergence of the Dental Axis

Wilson's curves are frontal, generally with superior concavity curves that bring together the tops of the vestibular and lingual cusps of two homologous teeth. To date, few variability studies have been conducted on Wilson's curves, and even fewer considering the occurrence of the teeth's abrasion. We have therefore decided to start from the frontal convergence of the dental axis passing through the first third/second third apical end of each dental root and running back to the center of each dental crown. Using the metrical and angular values measured on the 3D images of digitized mandibles, the objectives of this work are to propose a new method of measuring Wilson's curves removing the dental cusps from consideration (thus removing the impact of occlusal wear) and to compare the results with those of a conventional measurement method. Keywords: Wilson's curves, anthropology, dental axis, skulls, occlusal curves