ALIGNMENT

In the maxillary and mandibular anterior regions, proper alignment is characterized by coordination of alignment of the incisal edges and lingual incisal surfaces of the maxillary incisors and canines (fig. 1), and the incisal edges and labial incisal surfaces of the mandibular incisors and canines (fig. 2).

           figure 1                                                    figure 2

In the mandibular posterior quadrants, the mesiobuccal and distobuccal cusps of the molars and premolars should be in the same mesiodistal alignment. In the maxillary arch, the central grooves (mesio-distal) should all be in the same plane or alignment (fig. 3). If all teeth are in alignment, or within 0.50 mm of proper alignment, no points are scored.

figure 3

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