Fig. 3From: Three-dimensional quantitative analysis of dental and skeletal characteristics of skeletal Class I unilateral posterior crossbite in adultsDentoalveolar measurements of second premolars on coronal view. A, D a, the transverse width of the second premolar, distance from buccal cusp to the MSP; b, bucco alveolar crest width; c, bucco midalveolar widths; B, E d, palatal alveolar crest width; e, palatal midalveolar widths; C, F θ, the inclination of the second premolarBack to article page