1. A computing device comprising: a processing unit; and a set of computer-readable data storage media comprising at least one computer-readable data storage medium, the set of computer-readable data storage media storing software instructions that, when executed by the processing unit, cause the computing device to: identify a first point on an electronic three-dimensional (3D) model of at least a portion of a mandibular arch of a patient, the first point corresponding to a tip of a mesiobuccal cusp of a mandibular first molar; identify a second point on the electronic 3D model of the portion of the mandibular arch, the second point corresponding to a tip of a distobuccal cusp of the mandibular first molar; identify a third point on the electronic 3D model of the portion of the mandibular arch, the third point corresponding to a first contact point on the mandibular first molar; identify a fourth point on the electronic 3D model of the portion of the mandibular arch, the fourth point corresponding to a second contact on the mandibular first molar; identify a fifth point on an electronic 3D model of at least a portion of a maxillary arch of the patient, the fifth point corresponding to a tip of a mesiobuccal cusp of a first maxillary molar; automatically generate a central axis by calculating a linear regression of points projected onto a plane by the first point, the second point, the third point, and the fourth point, the central axis being a line on the plane, the plane being parallel to an occlusal plane of the patient; automatically identify a location of a scoring intersection, the scoring intersection being a point where the central axis and a scoring line intersect, the scoring line being a line on the plane, the scoring line being perpendicular to the central axis and passing through a point projected onto the plane by the fifth point; automatically identify locations of at least one measurement intersection, the at least one measurement intersection being a point where the central axis intersects a measurement line, the measurement line being a line on the plane that is perpendicular to the central axis and passes through a point projected onto the plane by one of the first point, the second point, the third point, and the fourth point; automatically generate a score based on the location of the scoring intersection relative to the at least one measurement intersection; and display an evaluation of the electronic 3D model based on the score.